Breakpoint Java system code for debugging

Question

My Java application has a problem I'm struggling to solve. I need to breakpoint runWorker() method of ThreadPoolExecutor , but because this is a standard Java class I dont think I can add breakpoints to stop it when I run in my IntelliJ Java tool.

I could view the source in IntelliJ and set a breakpoint but unlike breakpoints in my own code it had no effect.

What is the right approach here ?

Adding a breakpoint to the ThreadPoolExecutor#runWorker(Worker) method worked for me using IntelliJ; execution was suspended and was able to step though the code. — Slaw
– Slaw, Commented Jul 10, 2019 at 13:14
@Slaw thats for confirming it should work, the problem was the attached src was for Java 1.8.1 but I was running as Java 10, when I changed to run as java 1.8.1 it worked. — Paul Taylor
– Paul Taylor, Commented Jul 10, 2019 at 13:47

Paul Taylor · Accepted Answer · 2019-07-11 07:07:29Z

1

The problem was the attached src was for Java 1.8.1 but I was running as Java 10, when I changed to run as java 1.8.1 it worked.

answered Jul 11, 2019 at 7:07

Paul Taylor

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