java.lang.NoClassDefFoundError: in anonymous inner class

Question

Im' running this code on a Linux Red Hat with the sun/oracle JVM 1.6_23, inside a VMWare server.

After some times the JVM seem to be unable to access my anonymous inner classes.

My classpath is fine, since it works for a period.

All i got is errors like this one :

java.lang.NoClassDefFoundError: com/mycompany/impl/MyClassImpl$1 at com.mycompany.impl.MyClassImpl.markAsDeletable(MyClassImpl.java:45).

line 45 is the first line below, it can't find my new Predicate

        DomaineVO domaineVO = Iterables.find(domainesVO, new Predicate<DomaineVO>() {

            @Override
            public boolean apply(DomaineVO input) {
                return input.getId().equals(domaine.getIdentifier().toString());
            }
        });

Any ideas ?

Answer 1

Finally, i think we might have put the finger on the problem.

We are running this code on jetty, and we use automatic deploy of the .war files. By default jetty use the java.io.tmpdir to deploy the .war files.

Our problem was only on linux, and mostly early in the morning (as soon as the first office worker use the app).

The cause was the cleaning of the /tmp at night (made by a LOGROTATE command on our servers).

Rules of thumb : Never use /tmp for too long time, and make jetty deploy war in a directory of your own.

Thanks everyone

Answer 2

It sounds like the JVM can't find the class file for the anonymous class. This would be named 'MyClassImpl$1.class' - if it's not present in the classpath, something must have deleted it. If it is present then there's something wrong with the JVM.