java.lang.OutOfMemoryError: classblock allocation, 25428704 loaded, 25088K footp rint, in check_alloc (src/jvm/model/classload/classalloc.c:215). Attempting to allocate 2G bytes There is insufficient native memory for the Java Runtime Environment to continue. Possible reasons: The system is out of physical RAM or swap space In 32 bit mode, the process size limit was hit Possible solutions: Reduce memory load on the system Increase physical memory or swap space Check if swap backing store is full Use 64 bit Java on a 64 bit OS Decrease Java heap size (-Xmx/-Xms) Decrease number of Java threads Decrease Java thread stack sizes (-Xss) Disable compressed references (-XXcompressedRefs=false)

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Root Cause Analysis

  1. java.lang.OutOfMemoryError

    classblock allocation, 25428704 loaded, 25088K footp rint, in check_alloc (src/jvm/model/classload/classalloc.c:215). Attempting to allocate 2G bytes There is insufficient native memory for the Java Runtime Environment to continue. Possible reasons: The system is out of physical RAM or swap space In 32 bit mode, the process size limit was hit Possible solutions: Reduce memory load on the system Increase physical memory or swap space Check if swap backing store is full Use 64 bit Java on a 64 bit OS Decrease Java heap size (-Xmx/-Xms) Decrease number of Java threads Decrease Java thread stack sizes (-Xss) Disable compressed references (-XXcompressedRefs=false)

    at java.lang.ClassLoader.defineClass1()
  2. Java RT
    SecureClassLoader.defineClass
    1. java.lang.ClassLoader.defineClass1(Native Method)
    2. java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    3. java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    4. java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    4 frames
  3. weblogic.utils.classloaders
    GenericClassLoader.defineClass
    1. weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:343)
    1 frame