The class LVTHarness has a method named check():

The change to fix this should be:

    protected void check() throws Exception {
- JavacTask ct = (JavacTask)comp.getTask(null, fm, null, Arrays.asList("-g"),
+ JavacTask ct = (JavacTask)comp.getTask(null, fm, null, Arrays.asList("-g", "-d", "."),
                null, Arrays.asList(jfo));
        System.err.println("compiling code " + jfo.toString());
        ct.setProcessors(Collections.singleton(new AliveRangeFinder()));
        if (!ct.call()) {
            throw new AssertionError("Error during compilation");
        }

        checkClassFile(new File(jfo.getName().replace(".java", ".class")));

        //check all candidates have been used up
        for (Map.Entry<ElementKey, AliveRanges> entry : aliveRangeMap.entrySet()) {
            if (!seenAliveRanges.contains(entry.getKey())) {
                error("Redundant @AliveRanges annotation on method " +
                        entry.getKey().elem);
            }
        }
    }

also call:

    checkClassFile(new File(jfo.getName().replace(".java", ".class")));

will need to be modified, jfo.getName() should return the whole path to the .java file, what is needed here is only the class name.