Eclipse : Class file name must end with .class exception in Java Search

 解决办法:

An internal error occurred during: "Items filtering".
Class file name must end with .class

message box.

How to delete the search index:

  1. Close Eclipse
  2. Delete <workspace>/.metadata/.plugins/org.eclipse.jdt.core/*.index
  3. Delete <workspace>/.metadata/.plugins/org.eclipse.jdt.core/savedIndexNames.txt
  4. Start Eclipse again

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