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Asked: 2026-05-17T01:14:04+00:00

Can I use jmap to create a java memory heap on a JVM which

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Can I use jmap to create a java memory heap on a JVM which was started with debugging disabled? If so, how?

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  1. Editorial Team

    To use jmap you just need a JVMID, which is the process identifier of the JVM you want to dump.

    First use jps to get the JVMID.
    Then use jmap to dump the heap to a file.

    Example:

    jmap -dump:format=b,file=heap.bin <JVMID>
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