CODEWITHSUNDEEP
java
alex.collins
alex.collins

Reputation: 611

How can a get a JVM heap dump from Java 5 on Windows without a JDK installed and the process running as a service

This has been made hard for me:

  1. Windows, so no signals.
  2. Not in a console, so no signals that way.
  3. As a service, so perhaps not run in user session.
  4. Java 5
  5. No JDK, so no jmap, jconsole etc. on machine.
  6. App not running JMX.
  7. No option to install or reconfigure.
  8. Can plug a USB in.

Upvotes: 0

Views: 179

Answers (1)

Peter Lawrey
Peter Lawrey

Reputation: 533492

AFAIK You can't trigger a heap dump with Java 5.0 even if you has complete access to the machine. (Admittedly I haven't used Java 5.0 for more than five years) With Java 6 you need JMX or trigger a heap dump on an out of memory error.

Some memory profilers may allow you to do a heap dump (of their own format) if you can find one which supports Java 5.0 but you would have to enable profiling from the start and that tended to be relatively slow on Java 5.0 from memory.

Upvotes: 1

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