@Override
 public void buildStarted(CompileContext context) {
   final JpsProject project = context.getProjectDescriptor().getProject();
   final JpsJavaCompilerConfiguration config =
       JpsJavaExtensionService.getInstance().getCompilerConfiguration(project);
   final String compilerId = config == null ? JavaCompilers.JAVAC_ID : config.getJavaCompilerId();
   if (LOG.isDebugEnabled()) {
     LOG.debug("Java compiler ID: " + compilerId);
   }
   final boolean isJavac =
       JavaCompilers.JAVAC_ID.equalsIgnoreCase(compilerId)
           || JavaCompilers.JAVAC_API_ID.equalsIgnoreCase(compilerId);
   final boolean isEclipse =
       JavaCompilers.ECLIPSE_ID.equalsIgnoreCase(compilerId)
           || JavaCompilers.ECLIPSE_EMBEDDED_ID.equalsIgnoreCase(compilerId);
   IS_ENABLED.set(context, isJavac || isEclipse);
   String messageText = null;
   if (isJavac) {
     messageText =
         "Using javac " + System.getProperty("java.version") + " to compile java sources";
   } else if (isEclipse) {
     messageText = "Using eclipse compiler to compile java sources";
   }
   COMPILER_VERSION_INFO.set(context, new AtomicReference<String>(messageText));
 }
 private static boolean useEclipseCompiler(CompileContext context) {
   if (!USE_EMBEDDED_JAVAC) {
     return false;
   }
   JpsProject project = context.getProjectDescriptor().getProject();
   final JpsJavaCompilerConfiguration configuration =
       JpsJavaExtensionService.getInstance().getCompilerConfiguration(project);
   final String compilerId = configuration != null ? configuration.getJavaCompilerId() : null;
   return JavaCompilers.ECLIPSE_ID.equalsIgnoreCase(compilerId)
       || JavaCompilers.ECLIPSE_EMBEDDED_ID.equalsIgnoreCase(compilerId);
 }