[DrJava] [ drjava-Bugs-2106569 ] Debugging twice throws a DeadlockException

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Bugs item #2106569, was opened at 2008-09-11 20:09
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Category: Debugger
Group: 4: Serious
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Norm Krumpe (krumpenj)
Assigned to: Nobody/Anonymous (nobody)
Summary: Debugging twice throws a DeadlockException

Initial Comment:
20080904-r4668 .jar version running on Windows (have seen the error on Vista SP1 and XP Professional SP2).  

Set a breakpoint, compile, switch to debug mode, and click "Run" to begin debugging.  After completing the debugging using Step Into, click run again to debug again.  No debugging takes place.  Instead, console shows:

Unhandled exception: edu.rice.cs.util.ReaderWriterLock$DeadlockException: Same thread cannot read or write multiple times!  (Would cause deadlock.)

I can get around this by turning off debug mode and turning it back on again.  Then, all is well again.



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