Eclipse Ganymede Cannot connect to keystore.

If you're using eclipse and find yourself getting the following errors:

Cannot connect to keystore.
java.io.IOException: This trust engine is read only.


It's probably related to certificate installs (such as that needed to complete the AWS Toolkit for Eclipse install).

After doing that, try running keytool -list, if you get an IOException about an invalid keystore, then delete ~/.keystore
The fix is easy, don't use the ganymede-SDK distribution, start with the jee distribution.

Here's what I tried that didn't work:

Run sudo update-alternatives --all and make sure you pick all the same sun jvm alternatives for your JDK toolchain. I had a few of mine mismatched because I upgraded from Ubuntu 6.04 to 8.04 to Jaunty.

That didn't solve the problem, so I tried moving my ~/.eclipse directory out of the way. No dice. Next, I moved my workspace's .metadata directory aside. That didn't do it either.

I then tried purging any non-sun jvms, then running with both java-5 and java-6 jvms using new workspaces. Everything produced the same error message.

What finally worked: discarding the eclipse-SDK distribution and using the eclipse-jee distribution. Something is definitely screwy with the SDK one.