Jad Plugin does not function after reopening old eclipse workspace

Before the Eclipse4.4 opened an old Eclipse workspace, at the beginning of all normal, accidentally found the Jad plugin failed, and then look at the configuration, found that Jad is not configured with the correct jad.exe path, reconfigure, and found that it is still unable to properly decompile. Think about it, check the general > Editors > File Associations under the *.class is not configured correctly, reconfigure it OK. Eclispe This plug-in management upgrade is still a bit of a flaw.

Jad Plugin does not function after reopening old eclipse workspace