Program: 110864
Project: 110864
Buggy source:
@Override public void exec(Spawn spawn,ActionExecutionContext actionExecutionContext,AtomicReference<Class<? extends SpawnActionContext>> writeOutputFiles) throws ExecException, InterruptedException {
  Executor executor=actionExecutionContext.getExecutor();
  if (!spawn.isRemotable() || spawn.hasNoSandbox()) {
    SandboxHelpers.fallbackToNonSandboxedExecution(spawn,actionExecutionContext,executor);
    return;
  }
  SandboxHelpers.reportSubcommand(executor,spawn);
  SandboxHelpers.postActionStatusMessage(executor,spawn);
  Path sandboxPath=SandboxHelpers.getSandboxRoot(blazeDirs,productName,uuid,execCounter);
  Path sandboxExecRoot=sandboxPath.getRelative("String_Node_Str").getRelative(execRoot.getBaseName());
  Path sandboxTempDir=sandboxPath.getRelative("String_Node_Str");
  Set<Path> writableDirs=getWritableDirs(sandboxExecRoot,spawn.getEnvironment());
  try {
    SymlinkedExecRoot symlinkedExecRoot=new SymlinkedExecRoot(sandboxExecRoot);
    ImmutableSet<PathFragment> outputs=SandboxHelpers.getOutputFiles(spawn);
    symlinkedExecRoot.createFileSystem(getMounts(spawn,actionExecutionContext),outputs,writableDirs);
    sandboxTempDir.createDirectory();
    final SandboxRunner runner;
    if (fullySupported) {
      runner=new LinuxSandboxRunner(execRoot,sandboxPath,sandboxExecRoot,sandboxTempDir,getWritableDirs(sandboxExecRoot,spawn.getEnvironment()),getInaccessiblePaths(),getBindMounts(blazeDirs),verboseFailures,sandboxOptions.sandboxDebug);
    }
 else {
      runner=new ProcessWrapperRunner(execRoot,sandboxPath,sandboxExecRoot,verboseFailures);
    }
    try {
      runner.run(spawn.getArguments(),spawn.getEnvironment(),actionExecutionContext.getFileOutErr(),Spawns.getTimeoutSeconds(spawn),SandboxHelpers.shouldAllowNetwork(buildRequest,spawn));
    }
  finally {
      if (writeOutputFiles != null && !writeOutputFiles.compareAndSet(null,LinuxSandboxedStrategy.class)) {
        Thread.currentThread().interrupt();
      }
 else {
        symlinkedExecRoot.copyOutputs(execRoot,outputs);
      }
      if (!sandboxOptions.sandboxDebug) {
        SandboxHelpers.lazyCleanup(backgroundWorkers,runner);
      }
    }
  }
 catch (  IOException e) {
    throw new UserExecException("String_Node_Str",e);
  }
  if (Thread.interrupted()) {
    throw new InterruptedException();
  }
}

Fixed version (ground truth):
@Override public void exec(Spawn spawn,ActionExecutionContext actionExecutionContext,AtomicReference<Class<? extends SpawnActionContext>> writeOutputFiles) throws ExecException, InterruptedException {
  Executor executor=actionExecutionContext.getExecutor();
  if (!spawn.isRemotable() || spawn.hasNoSandbox()) {
    SandboxHelpers.fallbackToNonSandboxedExecution(spawn,actionExecutionContext,executor);
    return;
  }
  SandboxHelpers.reportSubcommand(executor,spawn);
  SandboxHelpers.postActionStatusMessage(executor,spawn);
  Path sandboxPath=SandboxHelpers.getSandboxRoot(blazeDirs,productName,uuid,execCounter);
  Path sandboxExecRoot=sandboxPath.getRelative("String_Node_Str").getRelative(execRoot.getBaseName());
  Path sandboxTempDir=sandboxPath.getRelative("String_Node_Str");
  Set<Path> writableDirs=getWritableDirs(sandboxExecRoot,spawn.getEnvironment());
  SymlinkedExecRoot symlinkedExecRoot=new SymlinkedExecRoot(sandboxExecRoot);
  ImmutableSet<PathFragment> outputs=SandboxHelpers.getOutputFiles(spawn);
  try {
    symlinkedExecRoot.createFileSystem(getMounts(spawn,actionExecutionContext),outputs,writableDirs);
    sandboxTempDir.createDirectory();
  }
 catch (  IOException e) {
    throw new UserExecException("String_Node_Str",e);
  }
  SandboxRunner runner=getSandboxRunner(spawn,sandboxPath,sandboxExecRoot,sandboxTempDir);
  runSpawn(spawn,actionExecutionContext,spawn.getEnvironment(),symlinkedExecRoot,outputs,runner,writeOutputFiles);
}