Why Are Java Threads Not Running Although They Are Runnable?

(Doc ID 1461430.1)

Last updated on NOVEMBER 05, 2016

Applies to:

Java Platform, Standard Edition - Version 1.3.1 to 7 [Release 1.3 to 7]
Information in this document applies to any platform.

Symptoms

It can be observed that lots of worker threads are in state runnable.  However, they do not seem to make any progress. Why is that?

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms