Program: 7474
Project: 7474
Buggy source:
private void submit(final Spark job,SparkSpecification sparkSpec,Location programJarLocation,final BasicSparkContext context) throws Exception {
  final Configuration conf=new Configuration(hConf);
  final ClassLoader classLoader=new CombineClassLoader(Objects.firstNonNull(Thread.currentThread().getContextClassLoader(),ClassLoader.getSystemClassLoader()),ImmutableList.of(context.getProgram().getClassLoader()));
  conf.setClassLoader(classLoader);
  beforeSubmit(job,context);
  final Location jobJarCopy=copyProgramJar(programJarLocation,context);
  LOG.info("String_Node_Str",jobJarCopy.toURI().getPath(),programJarLocation.toURI().toString());
  final Transaction tx=txSystemClient.startLong();
  SparkContextConfig.set(conf,context,cConf,tx,jobJarCopy);
  final Location dependencyJar=buildDependencyJar(context,SparkContextConfig.getHConf());
  LOG.info("String_Node_Str",dependencyJar.toURI().getPath());
  final String[] sparkSubmitArgs=prepareSparkSubmitArgs(sparkSpec,conf,jobJarCopy,dependencyJar);
  new Thread(){
    @Override public void run(){
      boolean success=false;
      try {
        LoggingContextAccessor.setLoggingContext(context.getLoggingContext());
        LOG.info("String_Node_Str",context.toString());
        ClassLoader oldClassLoader=Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(conf.getClassLoader());
        try {
          SparkProgramWrapper.setSparkProgramRunning(true);
          SparkSubmit.main(sparkSubmitArgs);
        }
 catch (        Exception e) {
          LOG.error("String_Node_Str",context.toString(),e);
        }
 finally {
          success=SparkProgramWrapper.isSparkProgramSuccessful();
          SparkProgramWrapper.setSparkProgramRunning(false);
          Thread.currentThread().setContextClassLoader(oldClassLoader);
        }
      }
 catch (      Exception e) {
        LOG.warn("String_Node_Str",e);
        throw Throwables.propagate(e);
      }
 finally {
        stopController(success,context,job,tx);
        try {
          dependencyJar.delete();
        }
 catch (        IOException e) {
          LOG.warn("String_Node_Str",dependencyJar.toURI());
        }
        try {
          jobJarCopy.delete();
        }
 catch (        IOException e) {
          LOG.warn("String_Node_Str",jobJarCopy.toURI());
        }
      }
    }
  }
.start();
}

Fixed version (ground truth):
private void submit(final Spark job,SparkSpecification sparkSpec,Location programJarLocation,final BasicSparkContext context) throws Exception {
  final Configuration conf=new Configuration(hConf);
  final ClassLoader classLoader=new CombineClassLoader(Objects.firstNonNull(Thread.currentThread().getContextClassLoader(),ClassLoader.getSystemClassLoader()),ImmutableList.of(context.getProgram().getClassLoader()));
  conf.setClassLoader(classLoader);
  beforeSubmit(job,context);
  final Location jobJarCopy=copyProgramJar(programJarLocation,context);
  LOG.info("String_Node_Str",jobJarCopy.toURI().getPath(),programJarLocation.toURI().toString());
  final Transaction tx=txSystemClient.startLong();
  SparkContextConfig.set(conf,context,cConf,tx,jobJarCopy);
  final Location dependencyJar=buildDependencyJar(context,SparkContextConfig.getHConf());
  LOG.info("String_Node_Str",dependencyJar.toURI().getPath());
  final String[] sparkSubmitArgs=prepareSparkSubmitArgs(sparkSpec,conf,jobJarCopy,dependencyJar);
  new Thread(){
    @Override public void run(){
      boolean success=false;
      try {
        LoggingContextAccessor.setLoggingContext(context.getLoggingContext());
        LOG.info("String_Node_Str",context.toString(),Arrays.toString(sparkSubmitArgs));
        ClassLoader oldClassLoader=Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(conf.getClassLoader());
        try {
          SparkProgramWrapper.setSparkProgramRunning(true);
          SparkSubmit.main(sparkSubmitArgs);
        }
 catch (        Exception e) {
          LOG.error("String_Node_Str",context.toString(),e);
        }
 finally {
          success=SparkProgramWrapper.isSparkProgramSuccessful();
          SparkProgramWrapper.setSparkProgramRunning(false);
          Thread.currentThread().setContextClassLoader(oldClassLoader);
        }
      }
 catch (      Exception e) {
        LOG.warn("String_Node_Str",e);
        throw Throwables.propagate(e);
      }
 finally {
        stopController(success,context,job,tx);
        try {
          dependencyJar.delete();
        }
 catch (        IOException e) {
          LOG.warn("String_Node_Str",dependencyJar.toURI());
        }
        try {
          jobJarCopy.delete();
        }
 catch (        IOException e) {
          LOG.warn("String_Node_Str",jobJarCopy.toURI());
        }
      }
    }
  }
.start();
}