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Build 20021114 Sometimes while stepping (F6), the debugger will jump to the first line of the file, and a little blue arrow will appear in the marker bar. I've never seen this arrow before so I don't know what it signifies. Hitting F6 again will jump back to the correct place in the original method. Others have seen this too, but we haven't been able to construct a simple test case. A not so simple test case is in: Project: org.eclipse.core.tests.resources (in dev.eclipse.org/home/eclipse) Class: org.eclipse.core.tests.resources.LinkedResourceTest Breakpoint at the start of testAllowMissingLocal After the breakpoint is hit, step into the "createLink" method, then repeatedly hit F6 to step over. About every third step it will jump to the top of the file and show that little blue arrow.
JCORE admitted to causing some debug attribute trouble - this may still be the case. The blue arrow is the new "instruction pointer". You should see it in the ruler as you step, corresponding to the current execution location.
Looks like another case of bug 26098
I debugged the test with no problem. I also checked the debug attributes of the file and found the line number to be 0 (not -1) as bug 26098 states. It is possible that you need to rebuild your entire workspace (perhaps the class file is old due to incremental building). Please try a full build and see if this is still a problem.
I did a full rebuild with the 20021113 build and it didn't fix the problem. I then grabbed the 20021114 build, and after a full rebuild the problem went away. So this appears to indeed be a duplicate of bug 26098. *** This bug has been marked as a duplicate of 26098 ***