Eclipse will not start and I haven't changed anything

Question

I haven\'t updated anything for at least a month. I was just working normally and suddenly the menus were all blank, so I decided to restart eclipse. I clicked \"close\" an

Answer 1

Today, I had the same problem. My eclipse refused to start. When I double clicked on Eclipse icon I was able to see splashscreen for a second and then nothing happen. Tried most of the solutions here: removed lock file, renamed workspace, tried to start Eclipse with different clean parameters. I even put a new copy of Eclispe and tried to start with a new workspace. Nothing!

My logs were showing bunch of errors from yesterday when my workstation was rebooted at 17:45.

!ENTRY org.eclipse.ui.workbench 4 2 2014-12-17 17:45:12.178
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.lang.NullPointerException

In the end this very simple change (look below) saved my Eclipse together with my workspace!

SOLUTION:

I edited eclipse.ini and added following line:

-vm
C:\Program Files\Java\jdk1.6.0_26\bin\javaw.exe

Eclipse has started again with all my projects inside! I hope this can help.

Answer 2

Maybe worth mentioning that when I had this problem I followed bia.migueis's advice - move everything out of the plugins folder - and the workspace would open again, minus a lot of my configuration. But then after that, I copied/overwrote all the original files back into the plugins folder and opened the workspace again: it still worked and the settings I'd had before seemed to be intact.

Answer 3

If you deleted all data in .metadata directory. There is a quick way to import all your projects again. Try this:

File --> Import --> General: Select Existing projects into workspace --> Select root directory: Browse to old workspace folder (the SAME with the current workspace folder is OK) --> Finish.

Answer 4

I tried the option above of moving the plugins but it didn't work. My solution was to delete the entire .metadata folder. This meant that I lost my defaults and had to import my projects again.

Answer 5

Try:

$ rm YOUR_PROJECT_DIR/.metadata/.plugins/org.eclipse.core.resources/.snap

Original source: Job found still running after platform shutdown eclipse

Answer 6

Removing workbench.xmi under workspace/.metadata/.plugins/org.eclipse.e4.workbench/ worked for me. It did not remove the existing projects.