Ant Out Of Memory Error Java Heap Space
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Ant Java.lang.outofmemoryerror: Permgen Space
2 I am trying to run ant task, however I get the following error: [javadoc] javadoc: error - java.lang.OutOfMemoryError: Please increase memory. [javadoc] For example, on the Sun Classic or HotSpot VMs, add the option -J-Xmx [javadoc] such as -J-Xmx32m. [javadoc] 1 error [javadoc] 103 warnings I have tried googling to find out how I can set this value, but I cannot find it. I have tried
heap space on Maven and ANT Many times we get java.lang.OutOfMemoryError: java heap space while building our project either by using maven or ANT just because heap size is not enough to build the project. At this point we just want to increase the heap ant build out of memory size used by ANT or MAVEN and this java tip will let you do this:
Ant_opts Memory
How to increase Java Heap size for Maven on Linux/Unix 1. Open your mvn.sh file and add the following line: export MAVEN_OPTS=-Xmx512m this
Eclipse Ant Build Java.lang.outofmemoryerror Java Heap Space
will allow to specifyjava heap space based on your project needs. How to increase Java Heap space for Maven on Windows 1. go to C:\apache-maven-2.2.1\bin 2. open your mvn.bat file and add the following line : set MAVEN_OPTS=-Xmx512m next http://stackoverflow.com/questions/4618450/out-of-memory-error-in-ant time you run maven commands like mvn clean or mvn install it will use this heap size. This article is in continuation of my earlier post on java heap 10 points on java heap space if you haven' read that you may find some useful info there. How to increase Java Heap size/space/memory for ANT on Linux/Unix Similar to Maven you can specify ANT_OPTS to specify JVM specific arguments for ANT build tool. Here is step by http://javarevisited.blogspot.com/2011/08/increase-heap-size-maven-ant.html step guide to change the java heap space for ANT: 1. Go to ANT_HOME directry (directory where Ant has been installed) 2. Open ant.bat file and add following line on it exportANT_OPTS=-Xmx512m some time you may need to put the value -Xmx512M inside double quotes. 3. Done next time you run "ant" it will use modified java heap size and will not throw OutOfMemoryError till the new limit reached. How to increase Java Heap size/space/memory for ANT on Windows As shown abovefor LinuxANT_OPTScan also be usedspecify JVM specific arguments for ANTin windows. Here is step by step guide to increasethe java heap memoryfor ANT in Windows: 4. Go to ANT_HOME directory (directory where Ant has been installed) 5. Open ant.bat file and add following line on it setANT_OPTS=-Xmx512m some time you may need to put the value -Xmx512M inside double quotes. 6. Done next time you run "ant" it will use modified java heap size and will not throw OutOfMemoryError till the new limit reached. Related post: How to resolve NoClassDefFoundError in Java How HashMap works in Java? How Garbage Collection works in Java? Why String is immutable in Java? 10 practical tips on Java debugging with eclipse How Synchronization works in Java? How Classpath works in Java? Posted by Javin Paul Email This BlogThis! Share to Twitter Share to Facebook Labels: core java Location: North America 5 commen
is compiling a large number of java source files, it may fail with java.lang.OutOfMemoryError:The system is out of resources.Consult the following stack trace for details.java.lang.OutOfMemoryError: Java heap spaceIt's no http://javahowto.blogspot.com/2006/06/fix-javac-java-lang-outofmemoryerror.html different than OutOfMemoryError in other java applications. When you run javac in Sun JDK, http://allscm.com/archives/how-to-increase-heap-size-for-ants-outofmemory-error-using-ant_opts.html it's invoking com.sun.tools.javac.main.Main located in %JAVA_HOME%\lib\tools.jar.If you are compiling with javac task in Apache Ant, set fork attribute to true, to run javac in a separate process with its own heap size settings. If fork is set to false, or not set (default is false), javac will run in the same process as out of Ant, which has a default maximum heap size of 64m. The following is a snippet from build.xml:
bugger of a problem can be rather tricky to debug. You may run into this problem when you have a large collection of source files to compile (think 1000+). You may also run into this problem with the following WebLogic ANT tasks: 1. jwsc 2. wlappc (LARGE JSP Pre-Compilations) There may be other related compilation tasks, but bottom line is the Java Heap Size is too small. To increase it, you need to add $ANT_OPTS to your environment. An overkill, but also a sure way to fix the problem can be these values: ANT_OPTS="-Xmx1024m -Xms512m" This variable must be set within your build machine's environment. When ANT executes, it automatically includes $ANT_OPTS in its execution string. I hope this little hint will solve a lot of your future headaches. I've been troubleshooting a similar problem on a project I'm currently working on for the past 24 hours. We went from plan a, to b, to c, to d, and started to run into a dead end and wanted to go for a temp fix by disabling pre-compilation.. until I found this root cause. If you're not currently using $ANT_OPTS, perhaps you should look into implementing that on your infrastructure. May end up saving you a heap of debugging time down the road. 🙂 2 comments in this article AndrewBoldman June 4, 2009 pm30 20:45 Great post! Just wanted to let you know you have a new subscriber- me! Freddy December 10, 2011 pm31 16:31 In mac OSX ANT_OPTS might also be set by editing ~/.antrc. For example, ~/.antrc might contain this. export ANT_OPTS=-Xmx512m If this file exists, exporting to ANT_OPTS will be ignore. Search Methodologies and Processes Build Management Release Management Software Configuration Management Continuous Integration SCM Best Practices Categories Automated Test Framework Build Framework ANT Apache Continuous Integration CruiseControl Gradle Hudson Cloud Computing Amazon AWS Collaboration Framework Random Thoughts R