Eclipse indigo won't start - eclipse

Question

This is what is in the log file:
eclipse.buildId=M20120208-0800
java.version=1.7.0_11
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86
!ENTRY org.eclipse.osgi 4 0 2013-01-18 09:16:30.495
!MESSAGE Startup error
!STACK 1
java.lang.UnsatisfiedLinkError: sun.nio.ch.IOUtil.iovMax()I
at sun.nio.ch.IOUtil.iovMax(Native Method)
at sun.nio.ch.IOUtil.<clinit>(Unknown Source)
at sun.nio.ch.Util.<clinit>(Unknown Source)
at sun.nio.ch.FileChannelImpl.<clinit>(Unknown Source)
at java.io.RandomAccessFile.getChannel(Unknown Source)
at org.eclipse.core.runtime.internal.adaptor.Locker_JavaNio.lock(Locker_JavaNio.java:39)
at org.eclipse.osgi.storagemanager.StorageManager.lock(StorageManager.java:389)
at org.eclipse.osgi.storagemanager.StorageManager.open(StorageManager.java:702)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.initFileManager(BaseStorage.java:220)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.initialize(BaseStorage.java:154)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.initializeStorage(BaseAdaptor.java:123)
at org.eclipse.osgi.framework.internal.core.Framework.initialize(Framework.java:190)
at org.eclipse.osgi.framework.internal.core.Framework.<init>(Framework.java:162)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:261)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
This happened after I made a system restore which (I think) reverted a java update. How do I solve this? I have a tun of stuff in eclipse and I don't want to redo it all again.
ADD:
Meanwhile I got Juno and it seems to be working. But, on my PC, juno has some issues with the shortcut keys and with about 12 plugins I use (they didn't update yet). Does this information help?

Answer 1

It seems that Eclipse is using java 1.7. Try to run Eclipse with a different vm. Install java 1.6 and edit the eclipse.ini adding the correspondent argument below, as described here
-vm C:\Java\JDK\1.6\bin\javaw.exe

Answer 2

Backup your .metadata folder, delete it, and try to start Eclipse.

Answer 3

Finally I did it!
I updated java, rebooted, then uninstalled java, rebooted then installed java.
(rebooting was essential, I tried without rebooting and it didn't work)
now it's working as it should.

Answer 4

Steps to follow
Open eclipse.ini file
You can see below 2 line :
--launcher.defaultAction
openFile
Now add below lines mention between Blockquote to set vm properly as per you jdk version
Blockquote
-vm
C:\Program Files\Java\jdk1.7.0_79\bin\javaw.exe
-XX:-UserCompressedOops
-vm
C:\Program Files\Java\jdk1.7.0_79\jre\bin\server\jvm.dll
Blockquote
before
-vmargs