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如何生成 Java heap dump?

Solution Verified - Updated -

Issue

  • 我们的程序遇到了奇怪的行为以及内存用尽的问题。
  • 如何生成 Java heap dump?
  • 在$JBoss_HOME下生成了java Core Dump。

Environment

  • Java
    • Oracle (Sun) JDK
    • OpenJDK
    • HP-UX JDK
    • JRockit

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