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Crear Pool de Conexion GlassFish Server (Mysql-Oracle)
 
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Vídeo tutorial de como crear pool de conexión GlassFish Server Solución Error class java.lang.RuntimeException Comandos Oracle y Mysql asadmin.bat create-jdbc-connection-pool --datasourceclassname com.mysql.jdbc.jdbc2.optional.MysqlDataSource --restype javax.sql.DataSource --property "portNumber=3306:serverName=localhost:DatabaseName=oms:password=123456:user=root:url=jdbc\\:mysql\\://localhost\\:3306/oms\\?zeroDateTimeBehavior\\=convertToNull" MysqlPoolConexion asadmin.bat create-jdbc-resource --connectionpoolid MysqlPoolConexion jdbc/mysqlCon asadmin.bat create-jdbc-connection-pool --datasourceclassname oracle.jdbc.pool.OracleDataSource --restype javax.sql.DataSource --property user=jacabarcas:password=123456:url="jdbc\:oracle\:thin\:@localhost\:1521\:XE" OraclePoolConexion asadmin.bat create-jdbc-resource --connectionpoolid OraclePoolConexion jdbc/oracleCon Solución Error (HTTP Status 500 - Internal Server Error type Exception report messageInternal Server Error descriptionThe server encountered an internal error that prevented it from fulfilling this request. exception java.lang.IllegalStateException: getOutputStream() has already been called for this response note The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 4.1.1 logs.)
5. Capture call stack, error code, error stack, error backtrace.
 
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Ideally, this is a total non-issue for you, because you simply invoke a generic logger procedure in your exception handlers (example and recommendation: download and use Logger, an open source utility that does almost anything and everything you can think of). But if you are about to write your own (or are using a home-grown logging utility), make sure that you cal and store in your log (likely a relational table), the values returned by: SQLCODE DBMS_UTILITY.FORMAT_CALL_STACK (or corresponding subprograms in 12.1's UTL_CALL_STACK package) - answers question "How did I get here?" DBMS_UTILITY.FORMAT_ERROR_STACK (or corresponding subprograms in 12.1's UTL_CALL_STACK package) - answers question "What is my error message/stack?" We recommend using this instead of SQLERRM. DBMS_UTILITY.FORMAT_ERROR_BACKTRACE (or corresponding subprograms in 12.1's UTL_CALL_STACK package) - answers question "On what line was the error raised?" Related blog post: http://stevenfeuersteinonplsql.blogspot.com/2016/03/nine-good-to-knows-about-plsql-error.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
What is the difference between PrintStakeTrace, toString, getMessage in Exception Handling? |
 
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Core Java Tutorial | Mr.Ramachandra ** For Online Training Registration: https://goo.gl/r6kJbB ► Call: +91-8179191999 💡 Also Watch C Language Tutorials: https://goo.gl/qDhJ2r Core Java FAQ's: https://goo.gl/qGh5mA Core Java Tutorials: https://goo.gl/NbaEge Java Programming Tutorials by Mr.Hari krishna: https://goo.gl/HThq6H Advanced Java Programming Tutorials by Mr.Nataraj: https://goo.gl/1U2Qgy Subscribe to our channel and hit the bell 🔔🔔🔔 icon to get video updates. 💡 Visit Our Websites For Classroom Training: https://nareshit.in/core-java-training/ For Online Training: https://nareshit.com/core-java-online... #JavaCollectionsFramework #Tutorials #Videos #corejava #Quiz -------------------------- 💡 About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA , Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA, Hyderabad, Chennai and Vijayawada, Bangalore India which provides online training across all the locations -------------------------- 💡 Our Online Training Features: 🎈 Training with Real-Time Experts 🎈 Industry Specific Scenario’s 🎈 Flexible Timings 🎈 Soft Copy of Material 🎈 Share Videos of each and every session. -------------------------- 💡 Please write back to us at 📧 [email protected]/ 📧 [email protected] or Call us at the USA: ☎+1404-232-9879 or India: ☎ +918179191999 -------------------------- 💡 Check The Below Links ► For Course Reg: https://goo.gl/r6kJbB ► Subscribe to Our Channel: https://goo.gl/q9ozyG ► Circle us on G+: https://plus.google.com/+NareshIT ► Like us on Facebook: https://www.facebook.com/NareshIT ► Follow us on Twitter: https://twitter.com/nareshitek ► Follow us on Linkedin: https://goo.gl/CRBZ5F ► Follow us on Instagram: https://goo.gl/3UXYK3
Views: 1008 Naresh i Technologies
Unfortunately App Has Stopped - How to Fix - ONLY FOR PROGRAMMERS - Android Studio Tutorial
 
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If your Android app crashes, then because of an uncaught RuntimeException like a NullPointerException. In this video we will learn, how to read the Logcat stack trace to find out what exception caused our app to crash and where it happened in our code, so we can provide more specific information when we ask for help. Java RuntimeException documentation: https://docs.oracle.com/javase/7/docs/api/java/lang/RuntimeException.html ____________________ Subscribe to my channel: https://www.youtube.com/c/codinginflow?sub_confirmation=1 Want more Android tutorials? Check my playlist section: https://www.youtube.com/c/codinginflow/playlists Follow me on social media: Facebook: https://www.facebook.com/codinginflow Instagram: https://www.instagram.com/codinginflow Twitter: https://twitter.com/codinginflow Blog: https://codinginflow.com/
Views: 63686 Coding in Flow
Java Stack and Heap - Java Memory Management
 
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https://www.guru99.com/java-stack-heap.html the following video demonstrates how memory is allocated in stack java & heap java. This is complete guide to Java memory management The JVM divided the memory into following sections. Heap, Stack, Code, Static. What is Stack Memory? Stack in java is a section of memory which contains methods, instance variables, and reference variables. What is Heap Memory? Heap is a section of memory which contains Objects and may also contain reference variables. Like, share and subscribe our channel for more videos. Watch more videos on our YouTube channel at https://www.youtube.com/channel/UC19i1XD6k88KqHlET8atqFQ READ this as a book on Amazon by viewing at http://amzn.to/2han5hw Visit our website for more! www.guru99.com Read our blogs in https://www.guru99.com/blog/ FACEBOOK! Would you prefer to watch more about us? Like our page for more https://www.facebook.com/guru99com/ TWITTER! Tweet for us on Twitter with #guru99 and follow us on https://twitter.com/guru99com LinkedIn! Follow us here https://www.linkedin.com/company/guru99/ THANKS! We appreciate you reading this and hope you have a wonderful day! Sincerely, Guru99
Views: 110401 Guru99
ORACLE DML ERROR LOGS/ DBMS_ERRLOG / شرح عربي
 
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ORACLE DML ERROR LOGS/ DBMS_ERRLOG / شرح عربي ------- select employee_id , first_name||' '||last_name name from employees create table emp_c ( employee_id number, ename varchar2(15) ); insert into emp_c select employee_id , first_name||' '||last_name name from employees ---the solution exec dbms_errlog.create_error_log('emp_c'); desc err$_emp_c insert into emp_c select employee_id , first_name||' '||last_name name from hr.employees log errors reject limit unlimited; select * from err$_emp_c
Views: 800 khaled alkhudari
Hibernate Tutorial #8 - Test the JDBC Connection
 
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FULL COURSE: Spring MVC and Hibernate (200+ videos) - http://www.luv2code.com/full-spring ---- This Hibernate tutorial series will help you quickly get up to speed with Hibernate. ---- DOWNLOAD SOURCE CODE for Hibernate tutorial. http://www.luv2code.com/hibernate-tutorial/ ---- View more videos on the playlist, Hibernate Tutorial: https://goo.gl/UKAdaq ---- Follow luv2code for more Hibernate tutorials: Website: http://www.luv2code.com YouTube: http://goo.gl/EV6Kwv Twitter: http://goo.gl/ALMzLG Facebook: http://goo.gl/8pDRdA --- If you liked my Hibernate tutorial, then join my mailing list: Get exclusive access to new Java tutorials. - http://www.luv2code.com/joinlist --- Questions or problems about this Hibernate tutorial? Post them in the comments section below. --- Want to suggest a video for my Hibernate tutorial? Leave a comment below. I'm always looking for new video ideas. Let me know what video you'd like for me to create for this Hibernate tutorial. --- Hibernate Tutorial Transcript In this video, we're going to test our JDBC connection. In the previous video, we did a lot of work with downloading JAR files. What I want to do hear is just do a very simple test to make sure that our JDBC connection works just fine. What we're going to do is create a very simple JDBC program, just to test everything out, just to make sure everything works out okay. What I would like to do, is move into this hibernate tutorial under the source. I'll create a new package. Right click, I'll say New Package. The actual name of the package, I'll call it com.luv2code.jdbc. Once you're happy with that package name, go ahead and click on finish. Now what I would like to do is actually create a new class. Again, right click on that package name. I'll say New Class. The actual name that I'll use for this class, I'll call it Testjdbc. Just very simple, and to the point. I'll also check the low item here for public static void, just so I can have a main method for this program. Then again, hit on Finish. All right, great. We have a very basic program here and let's go ahead and dig in. Let's start writing some code. I have a very simple try catch block. I have catch exception EXC. I'll do the EXC.print stack trace in case something goes wrong. Hopefully not. What I'll do is I'll just set up some variables here for my database connection information. First off, I'll set up my JDBC URL. I'll call it JDBC:mysequel:localhost3306/ I give the name of my database scheme, which is hbstudenttracker. Here I'll say use SSL=false. Just so that I don't get that pesky SSL warning that my sequel introduced recently, which is really annoying. Anyway, use SSL will make that go away. All right, so that's how JDBC URL, our user ID that we created, and we did all this stuff in previous slides here. Our user is HBStudent. We have this very secure system where our password is the same as our username. Only for training purposes, right? Okay, good. All right, so our URL, user ID, and password, great. We can use this information to actually give us a connection to a database. All right. Here, I'm just mentioning again that use SSL as equals false as to get rid of that pesky my sequel SSL warnings. All right, great. Let's go ahead and write some code here. I'm going to make use of my driver manager to get a connection. I'll also do some system out print lines here to tell myself what's going on here. All right, so I'll say system out print line, connecting to database. I'll just drop in that JDBC URL. Then I'll attempt to get a connection. Here I'll say connectionmycon=, and then I say driver manager.getconnection. I pass in my JDBC URL, my user ID, and my password. If that works out fine, then we have a successful connection. I can print a statement here saying connection successful. Yah-hoo. I like to have fun with this stuff. All right, so that's the piece there. Now, we need to fix some of our imports here. I can just click on this red X. We need to do that import on java.sql, so choose the second option here. Import Connection, and java.sql. Select that item. Yeah, that takes care of the item then. We should be good to go here. All right, so just some very basic code here to test out our database connection. Let's go ahead and run this application. I just do a right click, Run As, Java Application. Then it's going to fire up, and say connection successful. Let me expand this window here, so you can see everything. Connecting to database, connection successful. This is great. This is just a confirmation that we have the correct URL, user ID, and password. Also, more importantly, is that JDBC driver that we have on our lib directory, is associated with our class path. Know that we can get a valid connection. [Snip] for complete transcript, select More ... Transcript This is the end of the Hibernate tutorial transcript.
Views: 20420 luv2code
thread dump analysis with lab,how to analyse deadlock thread dump with jstack,kill command in java
 
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Java Thread Dump Analysis, Thread Dump: Thread Stack Trace analysis, A thread dump can only show the thread status at the time of measurement, so in order to see the change in thread status, it is recommended to extract them from 5 to 10 times with 5-second intervals. The thread dump is written to the system out of the VM on which you executed the kill -3. If you are redirecting the console output of the JVM to a file, the thread dump will be in that file. If the JVM is running in an open console, then the thread dump will be displayed in its console. java thread dump jstack tutorial Using kill -QUIT to trigger Thread dump without restarting the Server Java Thread Activity Analyzer kill -3 to get java thread dump Java Análisis de Problemas Thread, Dump Tema: Análisis de trazas de pila del subproceso, Un volcado de hilo sólo puede mostrar el estado de hilo en el momento de la medición, por lo que con el fin de ver el cambio en el estado de hilo, se recomienda extraerlas de 5 a 10 veces con intervalos de 5 segundos. El volcado de hilo se escribe en el sistema de la máquina virtual en la que se ejecutó la matanza -3. Si está redirigiendo la salida de la consola de la JVM en un archivo, la descarga del hilo será en ese archivo. Si la JVM se está ejecutando en una consola abierta, entonces el volcado de hilo se mostrará en su consola. java volcado hilo jstack tutorial Usando kill-QUIT para activar volcado Tema sin necesidad de reiniciar el servidor Java Tema Actividad Analizador matar a -3 para obtener java volcado hilo جاوة الموضوع تحليل تفريغ، تفريغ الموضوع: الموضوع تحليل تتبع المكدس، تفريغ الموضوع يمكن أن تظهر فقط في حالة الموضوع في وقت القياس، وذلك من أجل أن نرى التغيير في وضع الموضوع، فمن المستحسن لاستخراجها 5-10 مرات مع فترات الثانية 5. يتم كتابة تفريغ الموضوع إلى نظام للخروج من VM الذي قمت تنفيذ -3 القتل. إذا كنت إعادة توجيه إخراج وحدة التحكم من JVM إلى ملف، وتفريغ الموضوع يكون في هذا الملف. إذا تم تشغيل JVM في وحدة مفتوحة، ثم سيتم عرض تفريغ الموضوع في جهازها. تفريغ الموضوع جاوة jstack البرنامج التعليمي باستخدام قتل-QUIT لتحريك تفريغ الموضوع بدون إعادة تشغيل الملقم جافا محلل آخر الموضوع قتل -3 للحصول على تفريغ الموضوع جاوة Java线程转储分析,线程转储线程堆栈跟踪分析, 在测量时,只能显示线程转储线程状态,所以才能看到的线程状态的变化,这是建议,提取他们从5到10倍,5秒的时间间隔。 线程转储写入到系统的VM上执行杀-3。如果要重定向的控制台输出的JVM线程转储到一个文件,在该文件中。如果JVM运行在一个开放的控制台,然后线程转储将被显示在控制台上。 java线程转储 jstack教程 使用kill-QUIT来触发,而无需重新启动服务器的线程转储 Java线程活动分析 杀-3获取Java线程转储 java tutorial for Beginners, how to Analyze thread dump, java deadlock problem and detection using threaddump, thread dump to identify deadlock
Views: 17866 Zariga Tongy
Finding JDBC connection leaks (HD)
 
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Recorded on 2015-11-19 This screen cast shows how to detect JDBC connection leaks and find out where they're coming from. JDBC connection leak analysis is integrated into JProfiler's JDBC probe and has its own view. If a connection leak is detected, the stack trace and other information will help you to pinpoint the origin of the leak.
Views: 3055 Ingo Kegel
Error Handling in Java Microservices | Adam Bien
 
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Java Champion Adam Bien returns with another 2 Minute Tech Tip, this time focused on error handling in Java microservices https://developer.oracle.com/ https://cloud.oracle.com/en_US/tryit
Views: 1165 Oracle Developers
ClassNotFound problem fix
 
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"ClassNotFound" exception occurs if the if your ojdbc jar file is not linked with your project link to download ojdbc6.jar for oracle 11g "http://www.oracle.com/technetwork/apps-tech/jdbc-111060-084321.html"
Views: 175 coderz
Stack Implementation using JAVA | Data Structures Tutorial | Mr. Srinivas
 
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Stack Implementation using JAVA | Data Structures Tutorial | Mr. Srinivas ** For Online Training Registration: https://goo.gl/r6kJbB ► Call: +91-8179191999 💡 Also Watch C Language Tutorials: https://goo.gl/qDhJ2r Core Java FAQ's: https://goo.gl/qGh5mA Core Java Tutorials: https://goo.gl/NbaEge Java Programming Tutorials by Mr.Hari krishna: https://goo.gl/HThq6H Advanced Java Programming Tutorials by Mr.Nataraj: https://goo.gl/1U2Qgy Subscribe to our channel and hit the bell 🔔🔔🔔 icon to get video updates. 💡 Visit Our Websites For Classroom Training: https://nareshit.in/data-structure-training/ For Online Training: https://nareshit.com/data-structure-training/ #DataStructures #Training #Course #Tutorials -------------------------- 💡 About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA , Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA, Hyderabad, Chennai and Vijayawada, Bangalore India which provides online training across all the locations -------------------------- 💡 Our Online Training Features: 🎈 Training with Real-Time Experts 🎈 Industry Specific Scenario’s 🎈 Flexible Timings 🎈 Soft Copy of Material 🎈 Share Videos of each and every session. -------------------------- 💡 Please write back to us at 📧 [email protected]/ 📧 [email protected] or Call us at the USA: ☎+1404-232-9879 or India: ☎ +918179191999
Views: 51123 Naresh i Technologies
How To Fix -Application Blocked By Java Security Error  In Java 8?
 
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If you guys want high-quality, and more FREE tech content, You can Support me on Patreon and get some great rewards! https://www.patreon.com/TreeAcademy How To Fix -Application Blocked By Java security error ? 1. If you are running Java 8 than you have to uninstall Java 8 By going to Control panel as there is no way to select Medium security in Java 8. 2. Go to http://google.com and do a search for "Java 7 download" and go to Site and Download Java 7 . 3. Install Java 7 in your computer . 4. Add Your Application list URL to the exception site list and you will be able to run your Application easily . Hope This fixes your issue. Thanks for watching,if you like this tutorial ,please like and share . ============================================== Facebook: https://www.facebook.com/GoTreeAcademy Google+ : https://goo.gl/zAAXK6 Twitter: https://twitter.com/gotreeacademy #howto #fixApplicationblocked #javasecurityerror #java8
Views: 221315 Tree Academy
How to Handle Exceptions Properly - Part 3
 
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In this third video in the series, Steven switches gears to talk about to properly handle exceptions: build or find a single reusable logging procedure and call that. Only pass it variables from your current application state that cannot be obtained via built-in calls, like DBMS_UTILITY.FORMAT_ERROR_BACKTRACE. Related LiveSQL Script: https://livesql.oracle.com/apex/livesql/file/content_EHHFC36YW2834RB7Z9OE846C6.html Related blog post: http://stevenfeuersteinonplsql.blogspot.com/2017/02/now-not-to-handle-exceptions.html To download the Logger utility, visit github.com/oraopensource/logger ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2016 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Apex Programming tutorial for beginners: Exception Handling in Salesforce using try catch finally
 
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Apex Programming tutorial for beginners: exception handling in salesforce Get the complete course:https://courses.mytutorialrack.com/p/salesforce-developer-training-for-beginners Checkout my website: http://mytutorialrack.com/ connect me on facebook: https://www.facebook.com/tutorialRack/ Follow me on twitter: https://twitter.com/mytutorialrack salesforce exception handling salesforce exception throw salesforce exception handling best practice salesforce exception reporting salesforce exception class methods salesforce exception logging salesforce exception 5103 salesforce exception email notification salesforce exception constructor exception salesforce exception salesforce class exception salesforce apex throw exception salesforce apex exception handling salesforce apex catch exception apex salesforce custom exception apex salesforce salesforce assert exception salesforce api exception codes salesforce apex exception email throw an exception salesforce salesforce batch exception salesforce exception catch system.exception internal salesforce.com query error salesforce.com exception handling salesforce connection exception salesforce exception failed to create http component salesforce convert exception to string dml exception salesforce salesforce exception error message salesforce exception email extends exception salesforce field integrity exception error salesforce exception e salesforce salesforce exception failed to move template exception framework salesforce salesforce first exception on row 0 exception salesforce getmessage salesforce exception getcause salesforce generic exception creator exception in salesforce exception handling in salesforce exception methods in salesforce throw exception in salesforce custom exception in salesforce exception handling in salesforce trigger catch exception in salesforce limit exception in salesforce exception report in salesforce salesforce json exception salesforce exception list salesforce limit exception exception salesforce methods salesforce exception message salesforce exception mail salesforce exception notification io exception null salesforce salesforce new exception salesforce exception object salesforce override exception salesforce exception print stack trace salesforce exception page salesforce query exception salesforce exception rollback salesforce raise exception salesforce runtime exception salesforce exception stack trace exception setmessage salesforce salesforce soap exception code 5103 salesforce system.exception too many future calls salesforce stringexception invalid id salesforce system exception assertion failed salesforce exception types salesforce exception test exception trigger salesforce throw exception trigger salesforce mixed dml exception salesforce test class salesforce timeout exception salesforce unknown_exception field integrity exception unknown salesforce salesforce unknown_exception destination url not reset salesforce unhandled exception salesforce unknown_exception an unexpected error occurred salesforce unknown exception 1201 salesforce validation exception
Views: 8613 MyTutorialRack
Andrei Pangin - JVM crash dump analysis
 
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Java Virtual Machine can handle a wide range of coding errors by throwing an exception with a readable stack trace. But what to do if JVM crashes on its own? What is hs_err.log, the only postmortem message with mysterious contents? This talk will shed light on the information encoded in crash dumps. We will see how this data is useful in problem investigation. The live demo will review the real cases of JVM crash and postmortem analysis.
Views: 1747 Riga Dev Days
OutOfMemoryError Java Heap Space Fix - Heap Dump Analysis VisualVM Tutorial
 
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In this tutorial I show you how and why a java.lang.OutOfMemoryError can occur when running a Java application. I also show you how to configure your application to perform a Java Heap Dump if an out of memory errors. Additionally; I perform heap dump analysis by importing it into a Java profiling tool such as VisualVM. This will help find the root cause. First I set the Java Heap size to 64m by changing the –Xms and –Xmx virtual machine arguments. What does –Xms stand for? This java virtual machine argument allows you to specify the initial size (bytes) of the java heap. What does –Xmx stand for? This java virtual machine argument allows you to specify the maximum size, in bytes, of the memory allocation pool. We set the java heap memory to such a small size that it can’t handle and save the amount of java objects being created. Once there is not enough memory left to allocate objects, the application will fail with an out of memory error. I then configure the application to perform a Heap Dump on java.lang.OutOfMemoryError by specifying the flag: XX:+HeapDumpOnOutOfMemoryError This heap dump will be present in your applications working directory. If you would like to change the output path of the heap dump you can specify it by passing the: -XX:HeapDumpPath I then proceed to execute the java application which has an infinite loop that will create and place objects on an Array list. The application eventually fell over and threw an OutOfMemoryError when we allocated a Brick Object and tried to place it in the list. The list was at its maximum capacity and tried to resize. An arraylist is backed by an array, which has a finite number of elements. Each time the list’s backing array has reached maximum capacity it defines a new array typically double the size and copies the old array’s contents over into the new array. Then the GC clears the old array. Unfortunately there was not enough room for the new backing array in the Java Heap which caused the application to crash. When the java failure occurred it left the java heap with file name pattern java_pid{process-id}.hprof, this file can then be imported into VisualVM Java profiler for analysis of the applications state when the out of memory error occurred. After importing the hprof file into VisualVM profiler we can analyse the java thread’s status and the memory allocation. We can see the last stack trace before the failure and the huge amount of Brick allocations. If your application ever crashes, it’s good to inspect the heap dump to find out what was going on. This will hopefully identify causes and will prevent future failures if you can put a fix in. If you work with a cloud based ephemeral file system, then you might not be able to create / access a heap dump, as the application’s file system is scrapped and a new application is started on failure. There are ways to work around this such as attaching a hard drive to the instance. It depends on the nature of the system. I hope you enjoyed the tutorial! Don’t forget to subscribe for more great tech videos! Thanks, Philip Eclipse VisualVM Launcher Integration Set-up Guide https://www.youtube.com/watch?v=W60wvJ885iE&t Java Heap Dump Analysis – VisualVM Tutorial https://www.youtube.com/watch?v=Uubqc76h-jo VisualVM https://visualvm.github.io/ Eclipse Visual VM Integration https://visualvm.github.io/idesupport.html Java Profiling http://docs.oracle.com/javase/7/docs/technotes/guides/visualvm/profiler.html What are the -xms and -xmx parameters when starting JVMs? https://stackoverflow.com/questions/14763079/what-are-the-xms-and-xmx-parameters-when-starting-jvms
Views: 7480 Philip Starritt
Stack and Heap memory in java basic knowledge
 
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the things which we ignore the most often become the most important . Here's a basic understanding on heap and stack memory in java.
Views: 84058 Prashun Das
java.lang.OutOfMemoryError: Java heap space
 
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java.lang.OutOfMemoryError: Java heap space Troubleshooting Guide for beginners Reference: http://javaeesupportpatterns.blogspot.com/2011/11/outofmemoryerror-java-heap-space.html
Core Java with OCJP/SCJP: Exception Handling Part-1 || Introduction
 
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java Basic Java Tutorial for beginners Basic Java Programming for beginners Core Java By Durga Sir Core Java Core Java Video Tutorials Core Java Tutorial for beginners with examples Core Java Tutorial Core Java DURGASOFT Durgasoft Core Java Durgasoft Java durga software solutions core java videos durga software solutions java How to learn java How to learn java programming language for beginners learn java learn java programming for beginners programming in java understanding java java application development tutorial java beginner tutorial java basics for beginners java for beginners java lessons java lectures java language tutorial for beginners java programming tutorial java programming for beginners java tutorial for beginners java tutorial java tutorial by durga sir ==================================== Java tutorial by durga sir https://goo.gl/XWb4RL Java 9 by durga sir https://goo.gl/hXGyBW Java 1.8 Version New Features by Durga sir https://goo.gl/iHXXYU Adv Java JDBC Tutorial by Durga sir https://goo.gl/8q16Eo OCJA 1.8 Java SE 8 Programmer - I (1Z0 - 808 ) By Durga sir https://goo.gl/gC6R7f Core Java by NagoorBabu sir https://goo.gl/s6Nvj1 Advenced Java by Nagoorbabu sir https://goo.gl/ZZonzJ CoreJava by Ratan https://goo.gl/3VM19v Advanced Java jdbc by Ratan https://goo.gl/Rn2UXr Advjava tutorials - JSP by Ratan https://goo.gl/Z6ytxm Adv java servlets tutorial by ratan https://goo.gl/zTwi9y Servlet and JSP Tutorial by anji reddy https://goo.gl/jZMRUv Advanced Java Jdbc by Anjireddy https://goo.gl/16CGzX Hibernate byAnjireddy https://goo.gl/qQojvZ Struts by Anjireddy https://goo.gl/nE1Eof Spring by Mr.AnjiReddy https://goo.gl/NfN14R ADV JAVA by Naveen https://goo.gl/bhSsXF Spring by Mr.Naveen https://goo.gl/huVwFN Hibernate by Mr. Naveen https://goo.gl/TY3Wpd Struts by Mr.Naveen https://goo.gl/Vkmiw7
Views: 325907 Durga Software Solutions
Java Tutorial - #8 - Stack and Heap: Memory Management
 
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Did you find this video helpful? If so, why not subscribe!? ► http://bit.ly/CognitiveSurge Build a free website using 33i.co (https://33i.co) - Fast & Simple Website Design | Website Builder The best shared web hosting: https://www.bluehost.com/track/karlhadwen/ The best simple cloud hosting for developers: https://m.do.co/c/426ceabcea09 In this video I will be going over the Java Stack and Java Heap. I will be explaining where objects and variables are stored. The fundamentals of this video will be going over memory management. In future videos I will be explaining how the garbage collector works--it's imperative to understand all of these fundamental concepts to fully take advantage of Java. Like the Cognitive Surge Facebook page https://www.facebook.com/cognitivesurge Follow me on Twitter (Feel free to tweet me questions!) https://twitter.com/karlhadwen
Views: 57585 Karl Hadwen
Stackdriver Profiler - Stack Doctor
 
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Welcome to another episode of Stack Doctor. In the last episode, we worked set up tracing with Stackdriver to debug latency issues. This time, Customer Engineer Specialist Yuri Grinshteyn demonstrates how to install and use Stackdriver Profiler to see what happens inside a service. Introduction to Stackdriver Profiler → https://bit.ly/2K9zuEL Check out other videos in this series → https://bit.ly/2RsUaG7 For latest releases, please subscribe to the GCP Channel → https://bit.ly/GCloudPlatform product:Kubernetes,Stackdriver,Stack Doctor; fullname:Yuri Grinshteyn;
Views: 1323 Google Cloud Platform
Working with the Trace File Analyzer Collector
 
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The Trace File Analyzer (TFA) Collector Tool is a utility for collecting first failure diagnostics when creating Service Requests with Oracle Support. Using TFA Collector to make diagnostic collections removes questions about what files to collect and upload. TFA knows about all the well known Oracle and operating system diagnostic locations and collects only files that have been modified proximate to problem time specified from any of those well known locations. Larger files are also pruned proximate to problem time specified to reduce the size of the upload. If the system is a clustered environment TFA collects relevant diagnostics from the remote nodes as well. All of this can be accomplished with one simple command. Key features of TFA Collector include: RAC and single instance non-RAC support Time-based collection of relevant files OS Clusterware ASM DB OSW and CHMOS etc Large file pruning Cluster-wide time-relevant collections Analytics for key files DB alert logs Clusterware alert logs ASM alert logs system messages OSWatcher top and slabinfo data Flexible command-line interface Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
How to Program in Java
 
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share this : https://youtu.be/lEDZRC6xfq0 subscribe us : goo.gl/qZOyWH How to Program in Java J2ME programmers count bytes the way a super-model counts calories. – Unknown Java: write once, run away! –Brucee If Java had true garbage collection, most programs would delete themselves upon execution. – Robert Sewell Saying that Java is good because it works on all platforms is like saying anal sex is good because it works on all genders. – Unknown Java is a DSL to transform big XML documents into long exception stack traces. – Scott Bellware The definition of Hell is working with dates in Java, JDBC, and Oracle. Every single one of them screw it up. – Dick Wall CommunityOne 2007: Lunch with the Java Posse There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult. – C.A.R. Hoare (British computer scientist, winner of the 1980 Turing Award) How to Program in Java If debugging is the process of removing software bugs, then programming must be the process of putting them in. – Edsger Dijkstra (Dutch computer scientist, winner of the 1972 Turing Award) Measuring programming progress by lines of code is like measuring aircraft building progress by weight. – Bill Gates Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. – Brian W. Kernighan Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live. – Martin Golding When debugging, novices insert corrective code; experts remove defective code. – Richard Pattis Computer science education cannot make anybody an expert programmer any more than studying brushes and pigment can make somebody an expert painter. – Eric S. Raymond (American programmer, open source software advocate, author of “The Cathedral and the Bazaar”) Most good programmers do programming not because they expect to get paid or get adulation by the public, but because it is fun to program.- Linus Torvalds Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. – Rich Cook How to Program in Java
Views: 130 funny videos
Building Microservices with Java 9 Module System and Vert x
 
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Uday Tatiraju Principal Member of Technical Staff Oracle JDK 9’s Java Platform Module System (JPMS) is a performant and scalable platform which provides strong encapsulation and reliable configuration. It can be combined with Vert.x toolkit to build resilient and responsive microservices. The main intention of this talk is to detail the design and development of microservices using JPMS and the Vert.x toolkit. We'll construct the application from a host of loosely coupled modules that communicate over well defined interfaces. We'll use open tracing framework to monitor them, and deploy to Oracle container cloud service, briefly touching upon how easily scalable the application is while using OPC. We'll also discuss various challenges while working with non-modular jars and possible solutions.
Views: 935 Oracle Developers
BIG DATA #9 «Анализ производительности Хадуп-кластера» Игорь Бобак, EPAM Systems
 
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«Анализ производительности Хадуп-кластера» Игорь Бобак, EPAM Systems Как можно осуществлять профайлинг производительности Хадуп-кластера, собирать stack trace у MapReduce приложений,визуализировать их с помощью Flame Graph и находить узкие места в коде распределенного Java приложения,а также решать проблемы с конфигурацией или железом.
Views: 794 Belarus Big Data
IBM Support Assistant Garbage Collection and Memory Visualizer tool
 
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GCMV provides analysis and views of your applications verbose gc output. GCMV uses a powerful statistical analysis engine which provides tuning recommendations in these areas: - Memory Leak Detection Detect Java heap exhaustion and memory leaks Detect "native" (malloc) heap exhaustion and memory leaks - Optimizing garbage collection performance Analyze output from different gc modes (optthruput, optavgpause, gencon, balanced ) Compare output from multiple logs -- side by side Determine gc overhead, detect long or frequent gc cycles and causes Recommend settings to avoid long or frequent gc cycles Recommend optimum gc policy - Fine tuning of Java heap size Determine peak and average memory usage Recommend Java heap settings Flexible user interface makes it possible to carry out further analysis of the data and to "drill down" into the causes of trends and export of data into .csv or jpeg Oracle Java Mission Control (JMC) is free for development use only. JMC does provide data visualization, but it does not make tuning recommendations, nor does it compare various run results side by side. This is a major usability issue.
Views: 8163 IBMadvantage
L2C Benchmarks, or How I Learned to Stop Worrying and Love JMH
 
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Andres Almiray, Principal Consultant, Trivadis AG The Java Persistence API (JPA) is the go-to solution for writing the persistence layer in many enterprise and cloud-enabled applications. There are many tricks that can be applied to make the application performant, and one in particular is the configuration of the second-level cache (L2C for short). This session presents a real use case, searching for the optimal configuration of different JPA and L2C combinations. It includes a walk-through of the approach taken, from naive measurements and first tests to, ultimately, JMH benchmarks.
Views: 147 Oracle Developers
Least Recently Used (LRU) Explanation
 
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This video will teach you what is LRU (least recently used) page replacement algorithm, what is page fault, page hit, disadvantages of LRU. First In First Out (FIFO/FCFS) video : https://youtu.be/UTXkbcJUY74 Find me here : Tumblr : https://www.tumblr.com/blog/priyanka0304 Google+ : https://plus.google.com/u/0/b/105970252005982916681/105970252005982916681/posts Twitter : https://twitter.com/AndroidAcademy1 Facebook : https://www.facebook.com/AndroidAcademy8?ref=hl
Views: 317497 Tech Academy
CON3669 - Are You Aware of the /bin of Your JDK?
 
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A JDK installation includes many tools. You can often analyze issues relying only on these, without the need for (often expensive) third-party tools. Even better, being part of the JDK, they can be used as early as development and testing and for taking and analyzing memory dumps, stack traces of a particular system, GC activity, and more. This session iterates through several such tools, discusses their purpose and capabilities, and demonstrates their most common usages. Unleash the power of the tools you already have today! Speaker: Andrzej Grzesik, (╯°□°)╯︵ ┻━┻, _ I like programming. I do it a lot, mostly on the JVM, creating backends for distributed systems. I also display a particular affection to continuous delivery.. UI, unless quickly hacked, is not my play ;-) I believe that most problems we deal with are people problems, so I mix and match tools with technologies to achieve my goals, make people happy and achieve world peace :-) I believe in software quality, and organize GeeCON, Polish JUG, Krakow Software Craftsmanship, Cracow Hadoop User Group. In my free time, I read paper books and cycle, a lot!
Views: 807 Oracle Developers
Process Monitor: Processes, Threads and Thread Stacks
 
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LoveMyTool.com blog video the shows how to explore processes and thread operation with procmon.
Views: 6593 Paul Offord
CON6627 Proactive Optimization of Java Workloads in Production Environments
 
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Every application has its limits. Often these limits manifest themselves only when it is running in production under real load. Learn in this session how you can get visibility into the JVM internals without requiring host access and without incurring additional overhead on your JVM. Observe the application threads as they transition over time, understand resource utilization, and detect bottlenecks in the code. And get to know how to debug deadlocks and hung threads on a running server by observing stack frames and local variables and how to deal with application memory utilization inefficiencies. Speakers: Michael Avrahamov, Sr. Director of Software Development, Oracle Avi Huber, Senior Director, Oracle Xuemei Xi, Consulting Member of Technical Staff, Oracle She has 10+ of industry experience with a development focus on platform, performance, and performance monitoring and diagnosis
Views: 306 Oracle Developers
Video Stack Java
 
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Views: 88 ayu penta
Baking a Microservice PI(e) by Antonio Goncalves and Roberto Cortez
 
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Imagine you have several microservices exposing REST APIs. Imagine now that these microservices are spread all over and need to talk to each other. Imagine that you have a nice user interface interacting with these APIs where you can authenticate. And now, imagine that all this runs smoothly. In this Deep Dive session, Roberto and Antonio will build, step by step, a full microservice architecture (using different languages and frameworks). This session will answer these questions: How to build, document and deploy several microservices spread on different nodes (we use a Raspberry PI cluster, because the Cloud is too expensive) How to make those microservices talk to each other (Eureka for registry and discovery) How to scale up, down, and deal with network failures (Ribbon and Zuul to the rescue) How to deal with high traffic (Hystrix, here you come) How to monitor this distributed system (Dropwizard metrics with the ELK stack) How to centralize configuration (Archaius) How to trace calls (Zipkin) How to authenticate and manage authorization with JWT (Tribestream Access Gateway) How to have a centralized nice looking entry point (with Angular) # Antonio Goncalves Antonio is a senior developer specialized in Java/Java EE. As a consultant he advises customers and helps them in defining and developing their software architecture. This Java Champion is also the founder of the very successful Paris JUG, Devoxx France and an independent JCP member on various JSRs (Java EE 6, Java EE 7, Java EE 8). Based on his Java EE experiences, he has written three books covering Java EE 5, Java EE6 and recently Java EE 7. # Roberto Cortez Roberto Cortez is a passionate Java Developer with more than 10 years of experience; mainly the Finance sector. He is involved within the Open Source Community to help other individuals spread the knowledge about Java EE technologies. He is a regular speaker at conferences like JavaOne, Devoxx, JFokus, and others, leads the Coimbra JUG and enjoys writing blog posts. He is very excited to be a Triber; he now has the opportunity to work on the servers where everything happens, instead of just developing applications that run in a container. When he is not working, he hangs out with friends, play computer games and spends time with family.
Views: 2473 Devoxx
Tracing Parallel Execution
 
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This video shows how to trace parallel executions. Copyright © 2012 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Android Studio Error - android.os.NetworkOnMainThreadException
 
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I have the script to make an URL request to server, like this : DefaultHttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet("https://latcoding.com/test/mkdir.php"); try { HttpResponse response = client.execute(request); } catch (IOException e) { e.printStackTrace(); } -- but, when i click button 'Run App' and installed on my device, it says error on logcat : FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity...android.os.NetworkOnMainThreadException -- how to solving? see this video for details :)
Views: 1123 A. Hasbiyatmoko
Thread Dump Analysis for IBM JVM - Part1
 
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Thread Dump Analysis for IBM JVM - Part1. Reference article & Java source: http://javaeesupportpatterns.blogspot.com/2012/06/how-to-analyze-thread-dump-part-4-ibm.html
Universidade XTI - Curso Online Java - Aula 054 - Exception, multi catch, stacktrace e throws
 
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Blog Programador para Web: http://programadorparaweb.com.br/ Canal de Vídeos Programador para Web: https://www.youtube.com/user/programadorparaweb Fan Page Facebook: http://bit.ly/programadorParaWebFacebook Fan Page Google Plus: http://bit.ly/programadorParaWebGoogle Grupo de Estudos no Facebook: http://bit.ly/grupoProgramadorParaWeb Grupo de Estudos no Google Plus: http://bit.ly/grupoProgramadorParaWebGooglePlus
An Introduction to JVM Performance by Rafael Winterhalter
 
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Writing software for a virtual machine enables developers to forget about machine code assembly, interrupts, and processor caches. This makes Java a convenient language, but all too many developers see the JVM as a black box and are often unsure of how to optimize their code for performance. This unfortunately adds credence to the myth that Java is always outperformed by native languages. This session takes a peek at the inner workings of Oracle’s HotSpot virtual machine, its just-in-time compiler, and the interplay with a computer’s hardware. From this, you will understand the more common optimizations a virtual machine applies, to be better equipped to improve and reason about a Java program’s performance and how to correctly measure runtime! # Rafael Winterhalter Rafael works as a software consultant in Oslo, Norway. He is a proponent of static typing and a JVM enthusiast with particular interest in code instrumentation, concurrency and functional programming. Rafael blogs about software development, regularly presents at conferences and was pronounced a JavaOne Rock Star. When coding outside of his work place, he contributes to a wide range of open source projects and often works on Byte Buddy, a library for simple runtime code generation for the Java virtual machine. For his work, Rafael received a Duke's Choice award and was elected a Java Champion.
Views: 8824 Devoxx
Debugging and Logging for Oracle ADF Applications
 
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We're only human. Regardless how much work Oracle ADF does for us, or how powerful the JDeveloper IDE is, the inescapable truth is that as developers we will still make mistakes and introduce bugs into our ADF applications. In this video Oracle ADF Product Manager Chris Muir explores the sophisticated debugging tooling JDeveloper provides. This video was originally presented as part of the Introduction to Advanced ADF Topics Track during the Oracle Technology Network Virtual Developer Day event "Oracle ADF Development -- Web, Mobile and Beyond."
Views: 5594 ArchBeat Archive
Java 8 New Features  FREE Online Workshop in DURGASOFT
 
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LINK: https://attendee.gotowebinar.com/register/7281543634812202243 Course Content -------------------------------------- 1. lambda Expressions 2. Functional Interfaces 3. Default methods in Interface 4. Static Methods in Interfaces. 5. Predicate 6. Function 7. Consumer 8. Supplier 9. Method refernce & constructor reference by Double colon(::) operator. 10 Stream API 11. Date & Time API ( Joda API) ================================== Java 8 features Features of java 8 Java 8 stream and more Java lambda and more Java 8 tutorial Java 8 features with examples Java 8 streams tutorial Java 8 Lambda Basics Java 8 Features Tutorial =================================== Oracle Java Certification: Shortest Way To Crack OCA 1Z0-808 Just @ Rs 640/- 1. For Java SE 8 Programmer I Exam 2. Topic wise Tests and Grand Tests 3. 280 Realistic Questions With Clear Explanation 4. Study Material (408 Pages) 5. Question Bank (107 Pages) 6. Videos (63 Sessions) Use the below links to access Durga Sir Videos and Downloadable Materials and Topic wise Tests and Grand Tests with Life-Time Access. 1. Oracle Java Certification: Shortest Way To Crack OCA 1Z0-808 Link: https://goo.gl/vcMKjz 2. Java 8 New Features In Simple Way Link: https://goo.gl/F2NfZi 3. Java 9 New Features In Simple Way: JShell, JPMS and More Link: https://goo.gl/s9PP1p 4. Complete JDBC Programming Part-1 Link: https://goo.gl/uT9sav 5. Complete JDBC Programming Part-2 Link: https://goo.gl/VmhM7t For More Info: DURGASOFT Online Team mail: [email protected] Ph:8885252627,7207212427/28
Solucion Initializing game Minecraft Error
 
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Mostrar Mas :D Bueno Amigos Este Error Es Uno De Mucho Que Da Minecraft Por Lo Bueno Aqui Les Traigo La Solucion Del Error Driver Genius + Crack Link:http://www.mediafire.com/download/o97dvgbwoq90b77/DG+full.rar ---- Minecraft Crash Report ---- // I bet Cylons wouldn't have this problem. Time: 12/09/13 14:20 Description: Initializing game org.lwjgl.LWJGLException: Pixel format not accelerated at org.lwjgl.opengl.WindowsPeerInfo.nChoose­PixelFormat(Native Method) at org.lwjgl.opengl.WindowsPeerInfo.chooseP­ixelFormat(WindowsPeerInfo.java:52) at org.lwjgl.opengl.WindowsDisplay.createWi­ndow(WindowsDisplay.java:244) at org.lwjgl.opengl.Display.createWindow(Di­splay.java:306) at org.lwjgl.opengl.Display.create(Display.­java:848) at org.lwjgl.opengl.Display.create(Display.­java:757) at org.lwjgl.opengl.Display.create(Display.­java:739) at ats.O(SourceFile:297) at ats.d(SourceFile:599) at net.minecraft.client.main.Main.main(Sour­ceFile:101) A detailed walkthrough of the error, its code path and all known details is as follows: ----------------------------------------­----------------------------------------­------- -- Head -- Stacktrace: at org.lwjgl.opengl.WindowsPeerInfo.nChoose­PixelFormat(Native Method) at org.lwjgl.opengl.WindowsPeerInfo.chooseP­ixelFormat(WindowsPeerInfo.java:52) at org.lwjgl.opengl.WindowsDisplay.createWi­ndow(WindowsDisplay.java:244) at org.lwjgl.opengl.Display.createWindow(Di­splay.java:306) at org.lwjgl.opengl.Display.create(Display.­java:848) at org.lwjgl.opengl.Display.create(Display.­java:757) at org.lwjgl.opengl.Display.create(Display.­java:739) at ats.O(SourceFile:297) -- Initialization -- Details: Stacktrace: at ats.d(SourceFile:599) at net.minecraft.client.main.Main.main(Sour­ceFile:101) -- System Details -- Details: Minecraft Version: 1.6.2 Operating System: Windows 8 (x86) version 6.2 Java Version: 1.7.0_40, Oracle Corporation Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation Memory: 6629296 bytes (6 MB) / 26808320 bytes (25 MB) up to 1037959168 bytes (989 MB) JVM Flags: 1 total; -Xmx1G AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Suspicious classes: No suspicious classes found. IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 Launched Version: 1.6.2 LWJGL: 2.9.0 OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread. Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Pack: Default Current Language: ~~ERROR~~ NullPointerException: null Profiler Position: N/A (disabled) Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Views: 57930 Angel Torrez
9 year old explains how to analyze Java GC logs
 
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Analyzing Java GC logs is now made simple so that even a 9 year old can also analyze the GC logs. To analyze your GC logs, please visit http://gceasy.io/ To analyze your thread dumps, please vist http://fastthread.io/
Views: 6397 Tier1app
Exception Handling in Java #17 | Readymade Exception Classes #2 | java.lang.StackOverflowError
 
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JAVA & WEB | Session 12 | Exception Handling in Java :- https://goo.gl/Ssu3tC Watch the complete web series "Java & Web" on YouTube. It's complete, comprehensive and conceptual. https://www.youtube.com/c/mynameisGYAN Follow me on: Facebook: https://www.facebook.com/mnisGYAN/ Linkedin: https://www.linkedin.com/in/gyan-prakash-tiwary-07215420/ Twitter: https://twitter.com/mnisGYAN Website: http://mynameisgyan.website/ Be the patron of this channel: https://www.patreon.com/mynameisGYAN #JavaAndWeb #ExceptionHandlingInJava #OCJP #SCJP #NullPointerException #javatutorialforbeginners #javainterviewquestionsandanswersforfreshers #javainterviewquestionsandanswers #javaprogramming
Views: 79 my name is GYAN
How to Download JDK on windows for java Programming
 
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Java Development Kit:- The Java Development Kit (JDK) is an implementation of either one of the Java SE, Java EE or Java ME platforms[1] released by Oracle Corporation in the form of a binary product aimed at Java developers on Solaris, Linux, Mac OS X or Windows.[2] Since the introduction of the Java platform, it has been by far the most widely used Software Development Kit (SDK).[citation needed] On 17 November 2006, Sun announced that it would be released under the GNU General Public License (GPL), thus making it free software. This happened in large part on 8 May 2007, when Sun contributed the source code to the OpenJDK. The JDK has as its primary components a collection of programming tools, including: appletviewer -- this tool can be used to run and debug Java applets without a web browser apt -- the annotation-processing tool[4] extcheck -- a utility which can detect JAR-file conflicts idlj -- the IDL-to-Java compiler. This utility generates Java bindings from a given Java IDL file. jabswitch -- the Java Access Bridge. Exposes assistive technologies on Microsoft Windows systems. java -- the loader for Java applications. This tool is an interpreter and can interpret the class files generated by the javac compiler. Now a single launcher is used for both development and deployment. The old deployment launcher, jre, no longer comes with Sun JDK, and instead it has been replaced by this new java loader. javac -- the Java compiler, which converts source code into Java bytecode javadoc -- the documentation generator, which automatically generates documentation from source code comments jar -- the archiver, which packages related class libraries into a single JAR file. This tool also helps manage JAR files. javafxpackager -- tool to package and sign JavaFX applications jarsigner -- the jar signing and verification tool javah -- the C header and stub generator, used to write native methods javap -- the class file disassembler javaws -- the Java Web Start launcher for JNLP applications JConsole -- Java Monitoring and Management Console jdb -- the debugger jhat -- Java Heap Analysis Tool (experimental) jinfo -- This utility gets configuration information from a running Java process or crash dump. (experimental) jmap -- This utility outputs the memory map for Java and can print shared object memory maps or heap memory details of a given process or core dump. (experimental) jmc -- Java Mission Control jps -- Java Virtual Machine Process Status Tool lists the instrumented HotSpot Java Virtual Machines (JVMs) on the target system. (experimental) jrunscript -- Java command-line script shell. jstack -- utility which prints Java stack traces of Java threads (experimental) jstat -- Java Virtual Machine statistics monitoring tool (experimental) jstatd -- jstat daemon (experimental) keytool -- tool for manipulating the keystore pack200 -- JAR compression tool policytool -- the policy creation and management tool, which can determine policy for a Java runtime, specifying which permissions are available for code from various sources VisualVM -- visual tool integrating several command-line JDK tools and lightweight[clarification needed] performance and memory profiling capabilities wsimport -- generates portable JAX-WS artifacts for invoking a web service. xjc -- Part of the Java API for XML Binding (JAXB) API. It accepts an XML schema and generates Java classes.
Views: 61 Atul Kumar Gupta
Finding JDBC connection leaks (LowRes)
 
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Better resolution available at https://www.youtube.com/watch?v=7UGW6cUwdIE This screen cast shows how to detect JDBC connection leaks and find out where they're coming from. JDBC connection leak analysis is integrated into JProfiler's JDBC probe and has its own view. If a connection leak is detected, the stack trace and other information will help you to pinpoint the origin of the leak.
Views: 2528 Ingo Kegel
Operations on Circular Queue |  Data Structures Tutorial | Mr.Srinivas
 
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Operations on Circular Queue | Data Structures Tutorial | Mr.Srinivas ** For Online Training Registration: https://goo.gl/r6kJbB ► Call: +91-8179191999 💡 Also Watch C Language Tutorials: https://goo.gl/qDhJ2r Core Java FAQ's: https://goo.gl/qGh5mA Core Java Tutorials: https://goo.gl/NbaEge Java Programming Tutorials by Mr.Hari krishna: https://goo.gl/HThq6H Advanced Java Programming Tutorials by Mr.Nataraj: https://goo.gl/1U2Qgy Subscribe to our channel and hit the bell 🔔🔔🔔 icon to get video updates. 💡 Visit Our Websites For Classroom Training: https://nareshit.in/data-structure-training/ For Online Training: https://nareshit.com/data-structure-training/ #DataStructures #Training #Course #Tutorials -------------------------- 💡 About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA , Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA, Hyderabad, Chennai and Vijayawada, Bangalore India which provides online training across all the locations -------------------------- 💡 Our Online Training Features: 🎈 Training with Real-Time Experts 🎈 Industry Specific Scenario’s 🎈 Flexible Timings 🎈 Soft Copy of Material 🎈 Share Videos of each and every session. -------------------------- 💡 Please write back to us at 📧 [email protected]/ 📧 [email protected] or Call us at the USA: ☎+1404-232-9879 or India: ☎ +918179191999
Views: 66940 Naresh i Technologies
Linux Profiling at Netflix
 
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Brendan Gregg's talk at SCaLE 13x socallinuxexpo.org http://www.brendangregg.com/blog/2015-02-27/linux-profiling-at-netflix.html Profiling can show what your Linux kernel and appliacations are doing in detail, across all software stack layers. This talk shows how we are using Linux perf_events (aka "perf") and flame graphs at Netflix to understand CPU usage in detail, to optimize our cloud usage, solve performance issues, and identify regressions. This will be more than just an intro: profiling difficult targets, including Java and Node.js, will be covered, which includes ways to resolve JITed symbols and broken stacks. Included are the easy examples, the hard, and the cutting edge.
Views: 10733 Deirdré Straughan
[Tuto] Régler le probléme/crash report de minecraft crack sur windows 10 |Tuto Official
 
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►Abonnez vous liké partagez et ont feras plus de vidéo Tuto ou jeux vidéo ►postez dans les commentaires les tutos que vous vouliez que je fasse!!! ►Pour acheter des jeux moins cher : https://www.g2a.com/r/tuto-official ►Pour créer un compte de g2a : https://www.g2a.com/goldmine/join/us/Z5NWTKVW9 ►Les liens : Minecraft vrai launcher : http://adf.ly/1cWNPt - Mineshafter launcher : http://adf.ly/1cWLnE Probléme : org.lwjgl.LWJGLException: Pixel format not accelerated at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat Native Method at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat WindowsPeerInfo.java:52 at org.lwjgl.opengl.WindowsDisplay.createWindow WindowsDisplay.java:247 at org.lwjgl.opengl.Display.createWindow Display.java:306 at org.lwjgl.opengl.Display.create Display.java:848 at org.lwjgl.opengl.Display.create Display.java:757 at org.lwjgl.opengl.Display.create Display.java:739 at bcx.ap SourceFile:598 at bcx.an SourceFile:434 at bcx.a SourceFile:381 at net.minecraft.client.main.Main.main SourceFile:124 at sun.reflect.NativeMethodAccessorImpl.invoke0 Native Method at sun.reflect.NativeMethodAccessorImpl.invoke Unknown Source at sun.reflect.DelegatingMethodAccessorImpl.invoke Unknown Source at java.lang.reflect.Method.invoke Unknown Source at info.mineshafter.GameStarter.main GameStarter.java:24 A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Client thread Stacktrace: at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat Native Method at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat WindowsPeerInfo.java:52 at org.lwjgl.opengl.WindowsDisplay.createWindow WindowsDisplay.java:247 at org.lwjgl.opengl.Display.createWindow Display.java:306 at org.lwjgl.opengl.Display.create Display.java:848 at org.lwjgl.opengl.Display.create Display.java:757 at org.lwjgl.opengl.Display.create Display.java:739 at bcx.ap SourceFile:598 at bcx.an SourceFile:434 -- Initialization -- Details: Stacktrace: at bcx.a SourceFile:381 at net.minecraft.client.main.Main.main SourceFile:124 at sun.reflect.NativeMethodAccessorImpl.invoke0 Native Method at sun.reflect.NativeMethodAccessorImpl.invoke Unknown Source at sun.reflect.DelegatingMethodAccessorImpl.invoke Unknown Source at java.lang.reflect.Method.invoke Unknown Source at info.mineshafter.GameStarter.main GameStarter.java:24 System Details Details: Minecraft Version: 1.9 or 1.8 or 1.10 Operating System: Windows 10 x86 version 10.0 Java Version: 1.8.0_91, Oracle Corporation Java VM Version: Java HotSpot TM Client VM mixed mode , Oracle Corporation Memory: 101909832 bytes 97 MB / 174870528 bytes 166 MB up to 523501568 bytes 499 MB JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Xmn128M IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 Launched Version: 1.10 LWJGL: 2.9.4 OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread. GL Caps: Using VBOs: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client map_client.txt Resource Packs: SimpleJCraft 8x8 1.9.X .zip Current Language: ~~ERROR~~ NullPointerException: null Profiler Position: N/A disabled CPU: unknown Regler probleme minecraft minecraft crack windows 10 minecraft crack crack minecraft probleme minecraft gratuit probleme crash report crash report minecraft crash report minecraft windows crash report minecraft windows 10 minecraft hata minecraft bedava minecraft bedava crash report minecraft teamextreme hata minecraft teamextreme minecraft hata windows10 minecraft crack hata windows 10
Views: 12540 Tuto Official
Easy way to get multiple Java Thread Dumps using 'jstack'
 
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How to generate multiple jstack thread dumps? This video will be handy to generate multiple jstack dumps automatically using a simple script. This technique is useful in the following situations: * The system seems to be slow. * The CPU doesn't seem to be very busy. * The system seems to get sometimes stuck, for example when you restart the server, and it seems to "freeze" for a minute or more. * We want to know what's going on in the system. Or not (perhaps we deployed a process that may not be even running!) * It is not possible to have someone monitor the system 24/7 or for extended periods of time. Although this is a relatively advanced technique, I will try to make this video beginner-friendly and easy to follow. We will focus on Linux since it's the most popular operating system used to run Alfresco and Java-based Web Applications. Another article dedicated to Windows will come up soon.
Views: 700 Luis Colorado