log.debug("compiling");
            unit.compile(Phases.CLASS_GENERATION);
            
            final List classes = unit.getClasses();
            for (final Iterator it = classes.iterator(); it.hasNext();) {
                final GroovyClass clazz = (GroovyClass) it.next();
                final byte[] bytes = clazz.getBytes();
                pStore.write(ConversionUtils.convertClassToResourcePath(clazz.getName()), bytes);
            }
        } catch (final MultipleCompilationErrorsException e) {
            final ErrorCollector col = e.getErrorCollector();
            final Collection warnings = col.getWarnings();
            if (warnings != null) {