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Sometimes I have to deal with an improperly configured Eclipse installation and when I try to run it only the dialog "Java was started but returned exit code shows up without giving me any useful information to trace the actual reason Java failed to start.
What is the best approach to debug this kind of problem?
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A Java program can be debugged simply by right clicking on the Java editor class file from Package explorer. Select Debug As → Java Application or use the shortcut Alt + Shift + D, J instead. Either actions mentioned above creates a new Debug Launch Configuration and uses it to start the Java application.
You can restart running application by right clicking it in debug window and selecting "Terminate and relaunch".
The solution was to enable it again, start a debug session, the breakpoint is hit and shown in the UI, then disable again the option. There is also another simpler way that will make Eclipse show the debugging highlight at the breakpoint or rather refresh the debugging UI to work as it should.
In Eclipse, click on "Window > Preferences" In the "Preferences" window, select "Collaborator" from left pane. From the right panel after selecting "Collaborator", click on the "Capture Debugging Log" button and close the "Preferences" window.
Debugging the Eclipse IDE for Java Developers. Debugging is the routine process of locating and removing bugs, errors or abnormalities from programs.
A Java program can be debugged simply by right clicking on the Java editor class file from Package explorer. Select Debug As → Java Application or use the shortcut Alt + Shift + D, J instead.
Step 1: Add below VM parameter in eclipse.ini file. By default, eclipse will have javaw.exe, modify it to java.exe -vm C:/KK/jdk1.6.0_32/bin/java.exe Step 2: Pass verbose parameter during the eclipse launch. eclipse -verbose
Eclipse debugger will issue an error message "source not found" if the debugger steps into a function without source code, so please try not to step into any code that are not available. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors.
There are several command-line options that can help with troubleshooting. I'd start with -debug -consoleLog and see if that produces useful output.
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You can run eclipse with the verbose attribute from command line
eclipse -verbose
Read more about debugging eclipse and plugins here http://exploreeclipse.blogspot.nl/2014/01/enable-eclipse-verbose-for-trouble.html?m=1
By default, eclipse launches with javaw.exe process, since it's a window thread so you will not be able to see any verbose messages.
Step 1: Add below VM parameter in eclipse.ini file. By default, eclipse will have javaw.exe, modify it to java.exe -vm C:/KK/jdk1.6.0_32/bin/java.exe
Step 2: Pass verbose parameter during the eclipse launch. eclipse -verbose
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