Eclipse Problems View not showing Errors anymore

Question

For some reason Eclipse is no longer showing me Java compilation Errors in the Problems View.

It is still showing Warnings.

This has suddenly happened and I cannot think of anything that I have changed which would affect this.

I am using the "Maven Integration for Eclipse" plugin but I have been for some time - not sure if this could have affected it or not.

Any ideas?

Answer 1

On Ganymede, check the configuration of the Problem view:

('Configure content') It can be set on 'any element in the same project' and you might currently select an element from the project.

Or it might be set on a working set, and this working set has been modified

Make sure that 'Match any configuration' is selected.

Answer 2

At the top right corner of the problems window (next to minimize) there is a small arrow-icon. Click it and select "Configure filters". There is a severity filter that might have been activated.

Answer 3

I had same problem and randomly did such things as (several times):

1) Project->Clean...,
2) close and open Eclipse again,
3) Run As...

And it started to work again, without changing configuration.

Answer 4

I could reproduce this issue by creating an enumeration with a non-static member class and a static block enumerating its values:

public enum Foo {
Dummy(new Bar [] {new Bar()});
static {
 for (Foo foo: Foo.values());
}
private Foo(Bar [] params) {}
public class Bar {}
 }

This class breaks the Ganymede compiler. If you delete the line in the static initializer block, the code compiles correctly again, and you get the error that there is no enclosing instance for the new Bar() call, as expected.

-- correction: The above holds only if the project has gaeNature from Google Appengine. However, if you get an error similar as mentioned in the original question, you might be encountering another java compiler bug ...

Answer 5

I have also faced the same problem.

After installing m2eclipse plugin, i was not getting any Java compilation errors.

My solution was to enable dependency management by Select Project -> Right Click (to get context menu) -> m2 Maven -> Enable dependency management.

Now i am able to view Java Compilation Errors.

Answer 6

I have the same problem in slight different situation. I have a parent POM and multiple modules under it. Project was existing and I imported it into eclipse. I can change the "Dependency management" only to parent project but not projects under it. They are not showing any compilation warnings.

Next I'm going to try to change them all into individual projects... that's not what I wanted, but I haven't been able to solve this otherwise...