cleaningGroovyCompiler,
                getStableSources().getAsFileTree(),
                createRecompilationSpecProvider(inputChanges)
            );
        } else {
            return cleaningGroovyCompiler;
        }
    }

    private RecompilationSpecProvider createRecompilationSpecProvider(InputChanges inputChanges) {
        FileCollection stableSources = getStableSources();