How do I prevent Eclipse from hanging on startup?

Simon_N_4728 0
Viewed 196918

I am using Eclipse 3.3 ("Europa"). Periodically, Eclipse takes an inordinately long time (perhaps forever) to start up. The only thing I can see in the Eclipse log is:

    !ENTRY org.eclipse.core.resources 2 10035 2008-10-16 09:47:34.801
    !MESSAGE The workspace exited with unsaved changes in the previous session; refreshing workspace to recover changes.

Googling reveals someone's suggestion that I remove the folder:

workspace\.metadata\.plugins\org.eclipse.core.resources\.root\.indexes

This does not appear to have helped.

Short of starting with a new workspace (something which I am not keen to do, as it takes me hours to set up all my projects again properly), is there a way to make Eclipse start up properly?

eclipse-3.3 eclipse java
36 Answers

This may not be an exact solution for your issue, but in my case, I tracked the files that Eclipse was polling against with SysInternals Procmon, and found that Eclipse was constantly polling a fairly large snapshot file for one of my projects. Removed that, and everything started up fine (albeit with the workspace in the state it was at the previous launch).

The file removed was:

<workspace>\.metadata\.plugins\org.eclipse.core.resources\.projects\<project>\.markers.snap
user_911580

try:

  1. cd to <workspace>\.metadata\.plugins\org.eclipse.core.resources
  2. remove the file *.snap (or .markers in Indigo)
Admin1

You can try to start Eclipse first with the -clean option.

On Windows you can add the -clean option to your shortcut for eclipse. On Linux you can simply add it when starting Eclipse from the command line.

Ruben_269190

I also had luck with removing the *.snap files. Mine were located in a different directory than mentioned in the posts (below).

<eclipse workspace>/.metadata/.plugins/org.eclipse.core.resources/.projects

Consequently, the following unix cmd did the trick:

find <eclipse_workspace>/.metadata/.plugins/org.eclipse.core.resources/.projects  -name "*.snap" -exec rm -f {} \;
user_5551350

I did this:

  1. cd to .metadata.plugins\org.eclipse.core.resources
  2. remove the file .snap
  3. Noticed the Progress tab was doing something every few seconds..it seemed stuck
  4. Exit eclipse (DO NOT FILE|RESTART HERE OR YOU HAVE TO GO BACK TO STEP 1 AGAIN)
  5. Open eclipse again.

Using -refresh or -clean when starting eclipse did not help.

user_1253800

Windows -> Preferences -> General -> Startup and Shutdown

Is Refresh workspace on startup checked?

user_42490

I just had problems with Eclipse starting up. It was fixed by deleting this file:

rm org.eclipse.core.resources.prefs

I found in .settings

Admin1

my solution is to remove this dir:

workspace/.metadata/.plugins/org.eclipse.e4.workbench

what is did was first remove (move it to a save place) all from .metadata. eclipse started all new (all my settings gone). then i added bit by bit back into the .metadata dir until it dit not work again. this way i found i only had to remove this dir. And now Eclipse started with all my settings still in place.

it seems that in the file in this dir the windows which should be opened on startup are listed and some how it could not find one off them so it hung. why i'm unclear because the file which in complained about in the logging was on my filesystem.

user_3904360

I did a lot of these solutions and none seemed to work for me. What finally did work was to restart my Mac. Duh. I noticed that my jconsole also seemed to be stuck which made me immediately go for a restart because it seemed to be Java related as opposed to Eclipse specifically.

user_1798500

JAVA VERSION COULD BE PROBLEM:

I tried few answers given above. But it didnot work. But meanwhile I was trying them it clicked to me that I switched the java version for some other stuff & forgot to switch back.

Once I jumped back to the previous version. Eclipse started working for me.

user_26834520
user_8544770
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