FindBugs not showing the bugs found

Question

I've used FindBugs before and I didn't have problems, however this time on Eclipse Helios on Ubuntu Natty Narval bugs are found but not shown.

Here's what I tried:

• Right Click on the project > Find Bugs > Find Bugs
• Looking at the progress I saw 3 bugs were found
• In the Problems view they are not listed

I tried to go to its own perspective with: Open Perspective > Other > FindBugs but Bug Explorer is empty.

Any ideas to view those bugs?

UPDATE: In Eclipse error log I see:

!ENTRY edu.umd.cs.findbugs.plugin.eclipse 2 2 2011-06-18 21:13:24.968
!MESSAGE The following classes needed for FindBugs analysis on project **
     were missing:
!SUBENTRY 1 edu.umd.cs.findbugs.plugin.eclipse 2 0 2011-06-18 21:13:24.969
!MESSAGE org.apache.commons.exec.CommandLine
!SUBENTRY 1 edu.umd.cs.findbugs.plugin.eclipse 2 0 2011-06-18 21:13:24.969
!MESSAGE org.apache.commons.exec.DefaultExecutor
!SUBENTRY 1 edu.umd.cs.findbugs.plugin.eclipse 2 0 2011-06-18 21:13:24.969
!MESSAGE org.apache.commons.exec.ExecuteException

UPDATE 2: I don't know how to fix Eclipse, but I found a workaround. I added the findbugs report to maven's pom.xml

<reporting>
    <plugins>
        [...]
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>findbugs-maven-plugin</artifactId>
            <version>2.3.3-SNAPSHOT</version>
            <configuration>
                <xmlOutput>true</xmlOutput>
                <!-- Optional derectory to put findbugs xdoc xml report -->
                <xmlOutputDirectory>target/site</xmlOutputDirectory>
            </configuration>
        </plugin>
    </plugins>
</reporting>

The following configuration generates an HTML report in target/site/findbugs.html

Answer 1

If you have bugs showing up in some projects but not others, the problem may be that the bugs in one project are just not severe enough to show up.

I had the same issue (30 bugs showing up in Open Analysis Results in Editor) but none in Problems view or Find Bugs Explorer. The following worked for me:

1. Project -> Properties -> Find Bugs
2. Enable Project Specific Settings
3. Check everything under Report Visible Bug Categories
4. Slide minium rank to report to 20
5. Set minimum confidence to Low
6. Rerun FindBugs