Not able to run Eclipse Application. Can't even start Eclipse IDE

Question

I have an RCP product which doesn\'t run. Then I installed Eclipse freshly, and when I open Eclipse.exe it doesn\'t open Eclipse IDE. I get the error: NoClassDefFoundError:

Answer 1

QTP installation mess up with classpath of many applications.

Recommending setup a batch file to run each time so the global setup is not modified.

set IBM_JAVA_OPTIONS=
set _JAVA_OPTIONS=
set JAVA_TOOL_OPTIONS=

cd [your eclipse.exe]
eclipse.exe

Save it as .bat file and double click to run. You should see the eclipse working.