Eclipse fix after updating JDK

If Eclipse fails to start after updating JDK, do this.

Insert these two lines in eclipse.ini file:

-vm

C:\jdk1.6.0_20\jre\bin\client\jvm.dll

eg.

 -startup
plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.0.200.v20090519
-product
org.eclipse.epp.package.jee.product
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vm
C:\jdk1.6.0_20\jre\bin\client\jvm.dll
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx512m

Then add the path to your new JDK to your PATH environment variable:
C:\Program Files\Java\jdk1.6.0_21\bin; ....

Then delete the java.exe file from:

C:\Windows\System32

http://geekycoder.wordpress.com/2009/07/08/java-tips-adventure-in-resolving-the-java-error-error-occurred-during-initialization-of-vm/