作为服务运行时，内存的永久性空间不足

Question

I have Jboss 7.1.1 AS and when I run it as service, after some time when I use jasper reports I get exception: java.lang.OutOfMemoryError: PermGen space

Notice that this does not happen at all when I run it from Jboss developer studio.

What should I do ?

Error stack:

at java.lang.Class.getDeclaredConstructors0(Native Method) [rt.jar:1.7.0_79]
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2585) [rt.jar:1.7.0_79]
    at java.lang.Class.getConstructor0(Class.java:2885) [rt.jar:1.7.0_79]
    at java.lang.Class.newInstance(Class.java:350) [rt.jar:1.7.0_79]
    at sun.reflect.MethodAccessorGenerator$1.run(MethodAccessorGenerator.java:399) [rt.jar:1.7.0_79]
    at sun.reflect.MethodAccessorGenerator$1.run(MethodAccessorGenerator.java:396) [rt.jar:1.7.0_79]
    at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.7.0_79]
    at sun.reflect.MethodAccessorGenerator.generate(MethodAccessorGenerator.java:395) [rt.jar:1.7.0_79]
    at sun.reflect.MethodAccessorGenerator.generateSerializationConstructor(MethodAccessorGenerator.java:113) [rt.jar:1.7.0_79]
    at sun.reflect.ReflectionFactory.newConstructorForSerialization(ReflectionFactory.java:331) [rt.jar:1.7.0_79]
    at java.io.ObjectStreamClass.getSerializableConstructor(ObjectStreamClass.java:1376) [rt.jar:1.7.0_79]
    at java.io.ObjectStreamClass.access$1500(ObjectStreamClass.java:72) [rt.jar:1.7.0_79]
    at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:493) [rt.jar:1.7.0_79]
    at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:468) [rt.jar:1.7.0_79]
    at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.7.0_79]
    at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:468) [rt.jar:1.7.0_79]
    at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) [rt.jar:1.7.0_79]
    at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:602) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1622) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) [rt.jar:1.7.0_79]
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) [rt.jar:1.7.0_79]
    at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:249) [jasperreports-5.6.1.jar:5.6.1]
    at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:233) [jasperreports-5.6.1.jar:5.6.1]
    at net.sf.jasperreports.repo.SerializedObjectPersistenceService.load(SerializedObjectPersistenceService.java:59) [jasperreports-5.6.1.jar:5.6.1]
    at net.sf.jasperreports.repo.SerializedReportPersistenceService.load(SerializedReportPersistenceService.java:43) [jasperreports-5.6.1.jar:5.6.1]
    at net.sf.jasperreports.repo.DefaultRepositoryService.getResource(DefaultRepositoryService.java:155) [jasperreports-5.6.1.jar:5.6.1]

Answer 1

You can try to raise the PermSize for your JBoss in the standalone.conf.bat that's inside the bin folder of your server.

Find set " JAVA_OPTS=-Xms64M -Xmx512M -XX:MaxPermSize=256M " and change the MaxPermSize as per your requirement.

I don't know much about developer studio, but it probably sets the PermGem for the server ignoring the standalone.conf.bat (with a higher value), thus your report works.

BUT, you need to search for any leaks in your report that may be causing that OutOfMemoryError .

Hope it helps.