How to force garbage collection in Java?

Question

Is it possible to force garbage collection in Java, even if it is tricky to do? I know about System.gc(); and Runtime.gc(); but they only suggest t

Answer 1

You can trigger a GC from the command line. This is useful for batch/crontab:

jdk1.7.0/bin/jcmd  GC.run

See :

• https://docs.oracle.com/javase/8/docs/technotes/guides/troubleshoot/tooldescr006.html