Problem with imports in java?

Question

I'm having a problem with imports in one of my java applications.

I've Taken a working JSP out of one Eclipse project, Jar'd up all the classes from that project and put it into a new project.

In the new Project I've imported the jar file generated from the original, and pasted the jsp code into a new JSP document.

I'm getting "The import XX could not be resolved errors".

Anyone one have any idea how to diagnose this, everything seems to be in order.

Answer 1

I have an issue like this once in awhile. Try removing the JAR, rebuilding, and adding the JAR again. This should fix it.

It's an Eclipse bug.

Edit: The above answer is assuming the jar is actually on the build path.

Answer 2

When you say "I've imported the jar file" you mean you have copied it or put it in the classpath?

Answer 3

When you add a Jar file, instead of Import, right click on the project and choose "Add External Library" or "Add External Jar"

Answer 4

It sounds like the jar you imported doesn't appear in your build path. Try right-clicking the project, select Build Path > Add External Archives...

This should put a reference to your jar in the project build path.

Answer 5

Check inside the Jar (just open it from the build path) and see if the paths are correct. If you have foo.Bar as something else than foo/Bar.class that might be it.