Debugging Java application causes high cpu utilization

Question

When I'm debugging my Java EE application on Weblogic from Eclipse, in some cases just the fact that the debug is connected and enabled, causes high CPU utilization. The moment that I disconnect from debug port, the CPU utilization drops to normal levels.

What can cause it and how can I solve it? Thanks!

Update(s): Java version 1.6.0_45 (64bit)

Which version of Java do you have? This shouldn't happen in modern JVMs. — Peter Lawrey
– Peter Lawrey, Commented Feb 25, 2015 at 13:29
java 6 shouldn't be so bad. I assume using Java 7 or Java 8 is not an option. — Peter Lawrey
– Peter Lawrey, Commented Feb 25, 2015 at 14:14
Do you have the same problem with Netbeans? What about jdb? Since you said port, is this a local JVM you're attaching the debugger to? — David Ehrmann
– David Ehrmann, Commented Feb 25, 2015 at 16:02

Peter · Accepted Answer · 2015-02-26 06:02:31Z

1

in java debugging you can do something called method debugging, that type of method debugging severely impacts performance, make sure you didnt accidently added one of those

eclipse method breakpoints

answered Feb 26, 2015 at 6:02

Peter

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Boris Over a year ago

Thanks, now when searching for method debugging I realize that it's an old and known problem.

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