joyceewy ,
Apologies for the delayed response.
Can you answer some more questions for me to understand the issue better ?
1) Can you share your Build ID from Help > About MyEclipse Blue Edition > Build Id ?
2) Are you migrating your projects to MyEclipse from any other IDE ? If yes then which one ?
3) Did you enhance your project to work with MyEclipse ? Please take a look at this link on how to go about enhancing the projects to work with MyEclipse :
http://www.myeclipseide.com/documentation/quickstarts/blueedition/project_migration/
4) When you configure your WAS server in MyEclipse Blue, we automatically create a JDK in MyEclipse that is used to launch/debug that server. You could configure your projects to use this as their JDK.
1. Ensure that you have a correctly configured WAS Blue connector
2. Right-click your project choose Build Path > Configure Build Path
3. Switch to Libraries tab and remove the default JRE that is configured
4. Select “Add library”, then select JRE System library, then select “Alternate JRE”, then from dropdown you can select the appropriate Websphere JDK