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[cdt-dev] NPE exception when debugging LibreOffice using 8.1.0 DSF for long period of time
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A bug has been reported to Fedora eclipse-cdt regarding debugging
LibreOffice using
CDT 8.1.0.
gdb 7.4.50
eclipse 4.2.1
The following occurs after about 2 hours of debugging:
---------------------------------------------------------------------------------------------
Description of problem:
when using the Eclipse CDT with GDB to debug an overly large
C++ application (LibreOffice) occasionally the following exception
is printed:
Exception in thread "MI TX Thread" java.lang.NullPointerException
at
org.eclipse.cdt.dsf.mi.service.command.commands.MICommand$MIStandardParameterAdjustable.getAdjustedValue(MICommand.java:331)
at
org.eclipse.cdt.dsf.mi.service.command.commands.MICommand.parametersToString(MICommand.java:239)
at
org.eclipse.cdt.dsf.mi.service.command.commands.MICommand.constructCommand(MICommand.java:172)
at
org.eclipse.cdt.dsf.mi.service.command.AbstractMIControl$TxThread.run(AbstractMIControl.java:650)
when this happens Eclipse CDT somehow gets confused and disables
all of the debugging UI; only thing that still works then
is the "Terminate" button to detach from the inferior.
in case it matters, the inferior has some custom GDB python
helpers to print various data types that are evidently used
to display stuff in Eclipse CDT as well.
-------------------------------------------------------------------------------------------------
Has anyone on the debugger team seen this occur before? Any ideas on
how to get around the problem or if there is an issue in DSF that needs
addressing or has already been fixed?
Unfortunately, the developer has admitted he does not have a simple
reproducible scenario and that it occurs after a long period of time.
-- Jeff J.
