Eclipse related

Use existing workspace with newer version of Eclipse?
In theory, new versions of Eclipse should update your workspace and project files just fine. In practice, they can become corrupted. My new rule is to create a new workspace for every major version upgrade of Eclipse (maybe more often if you’re cautious). Then I copy those projects and import the copy. This ensures I have a backup plan should something go awry. You may need to reimport your project(s) if there’s a problem that won’t go away after an upgrade.
(from ECLIPSE “CANNOT BE RESOLVED TO A TYPE” ERROR)

How to find out if an installed Eclipse is 32 or 64 bit version?

Hit Ctrl+Alt+Del to open the Windows Task manager and switch to the processes tab, OR
Open eclipse.ini in the installation directory, and observe the 4th line

32-bit programs should be marked with *32

Running 32 bit applicayion on 64 bit Eclipse
Using a 32-bit JRE with a 64-bit eclipse:
Just include the 32bit JRE as an additional Java runtime in the configuration and use it for your project.
How?
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