How to identify JVM native memory segment allocations on OpenJDK / Oracle JDK

Solution Verified - Updated -

Issue

  • We see a lot of [ anon ] segments when pmap is run on a Java process. How can we identify what they are?
  • How can we identify the cause of a JVM native memory leak?

Environment

  • Java application
  • Open JDK
  • Oracle JDK

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