Eclipse error: indirectly referenced from required .class files?

Question

It means: "A class that you use needs another class that is not on the classpath." You should make sure (as Harry Joy suggests) to add the required jar to the classpath.

This is as likely a matter of Eclipse's getting confused as it is an actual error. I ignored the error and ran the web service whose endpointInterface it complained about, and it ran fine, except for having to deal with the dialog every time I wanted to run it. Just another opaque error that tells me nothing.

It happens to me sometimes, I always fixed that with "mvn eclipse:clean" command to clean old properties and then run mvn eclipse:eclipse -Dwtpversion=2.0 (for web project of course). There are some old properties saved so eclipse is confused sometimes.

I had this error because of a corrupted local maven repository.

So, in order to fix the problem, all I had to do was going in my repository and delete the folder where the concerned .jar was, then force an update maven in Eclipse.

It sounds like this has been a known issue (Bug 67414)that was resolved in 3.0 ... someone has commented that it's occurring for them in 3.4 as well.

In the mean time, the work around is to remove the JRE System Library from the project and then add it back again.

Here are the steps:

Go to properties of project with the build error (right click > Properties)

View the "Libraries" tab in the "Build Path" section

Find the "JRE System Library" in the list (if this is missing then this error message is not an eclipse bug but a mis-configured project)

Remove the "JRE System Library"

Hit "Add Library ...", Select "JRE System Library" and add the appropriate JRE for the project (eg. 'Workspace default JRE')

Hit "Finish" in the library selection and "OK" in the project properties and then wait for the re-build of the project

Hopefully the error will be resolved ...