Program: 5158
Project: 5158
Buggy source:
/** 
 * Launches the given main class. The main class will be loaded through the   {@link SparkRunnerClassLoader}.
 * @param mainClassName the main class to launch
 * @param args arguments for the main class
 */
@SuppressWarnings("String_Node_Str") public static void launch(String mainClassName,String[] args){
  ClassLoader systemClassLoader=ClassLoader.getSystemClassLoader();
  List<URL> urls=ClassLoaders.getClassLoaderURLs(systemClassLoader,new ArrayList<URL>());
  URL resource=systemClassLoader.getResource(mainClassName.replace('.','/') + "String_Node_Str");
  if (resource == null) {
    throw new IllegalStateException("String_Node_Str" + mainClassName);
  }
  if (!urls.remove(ClassLoaders.getClassPathURL(mainClassName,resource))) {
    throw new IllegalStateException("String_Node_Str" + resource);
  }
  URL[] classLoaderUrls=urls.toArray(new URL[urls.size()]);
  ClassLoader classLoader=new SparkRunnerClassLoader(classLoaderUrls,new MainClassLoader(classLoaderUrls,systemClassLoader.getParent()),false);
  Thread.currentThread().setContextClassLoader(classLoader);
  try {
    classLoader.loadClass(SparkRuntimeContextProvider.class.getName()).getMethod("String_Node_Str").invoke(null);
    classLoader.loadClass(StandardOutErrorRedirector.class.getName()).getDeclaredMethod("String_Node_Str",String.class).invoke(null,mainClassName);
    LOG.info("String_Node_Str",mainClassName,Arrays.toString(args));
    classLoader.loadClass(mainClassName).getMethod("String_Node_Str",String[].class).invoke(null,new Object[]{args});
    LOG.info("String_Node_Str",mainClassName);
  }
 catch (  Exception e) {
    throw new RuntimeException("String_Node_Str" + mainClassName + "String_Node_Str",e);
  }
}

Fixed version (ground truth):
/** 
 * Launches the given main class. The main class will be loaded through the   {@link SparkRunnerClassLoader}.
 * @param mainClassName the main class to launch
 * @param args arguments for the main class
 */
@SuppressWarnings("String_Node_Str") public static void launch(String mainClassName,String[] args){
  Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler());
  ClassLoader systemClassLoader=ClassLoader.getSystemClassLoader();
  List<URL> urls=ClassLoaders.getClassLoaderURLs(systemClassLoader,new ArrayList<URL>());
  URL resource=systemClassLoader.getResource(mainClassName.replace('.','/') + "String_Node_Str");
  if (resource == null) {
    throw new IllegalStateException("String_Node_Str" + mainClassName);
  }
  if (!urls.remove(ClassLoaders.getClassPathURL(mainClassName,resource))) {
    throw new IllegalStateException("String_Node_Str" + resource);
  }
  URL[] classLoaderUrls=urls.toArray(new URL[urls.size()]);
  ClassLoader classLoader=new SparkRunnerClassLoader(classLoaderUrls,new MainClassLoader(classLoaderUrls,systemClassLoader.getParent()),false);
  Thread.currentThread().setContextClassLoader(classLoader);
  try {
    classLoader.loadClass(SparkRuntimeContextProvider.class.getName()).getMethod("String_Node_Str").invoke(null);
    classLoader.loadClass(StandardOutErrorRedirector.class.getName()).getDeclaredMethod("String_Node_Str",String.class).invoke(null,mainClassName);
    LOG.info("String_Node_Str",mainClassName,Arrays.toString(args));
    classLoader.loadClass(mainClassName).getMethod("String_Node_Str",String[].class).invoke(null,new Object[]{args});
    LOG.info("String_Node_Str",mainClassName);
  }
 catch (  Exception e) {
    throw new RuntimeException("String_Node_Str" + mainClassName + "String_Node_Str",e);
  }
}