Program: 53045
Project: 53045
Buggy source:
public void addDependency(final Optional<VirtualFile> importClass,final Optional<VirtualFile> currentClass){
  if (!importClass.isPresent() || !currentClass.isPresent()) {
    return;
  }
  BuckAuditOwner.execute(mProject,new FutureCallback<String>(){
    @Override public void onSuccess(    @Nullable String buckTargetResult){
      try {
        String currentClassPath=currentClass.get().getPath();
        Map<String,List<String>> pathAndTargetData=mObjectMapper.readValue(buckTargetResult,Map.class);
        String importTargetName="String_Node_Str";
        String importPath="String_Node_Str";
        String currentTargetName="String_Node_Str";
        String currentPath="String_Node_Str";
        for (        Map.Entry<String,List<String>> targetAndPathEntry : pathAndTargetData.entrySet()) {
          String[] pathAndTarget=targetAndPathEntry.getValue().get(0).replaceFirst("String_Node_Str","String_Node_Str").split("String_Node_Str");
          if (currentClassPath.contains(targetAndPathEntry.getKey())) {
            currentTargetName=pathAndTarget[1];
            currentPath=pathAndTarget[0];
          }
 else {
            importTargetName=pathAndTarget[1];
            importPath=pathAndTarget[0];
          }
        }
        BuckDeps.addDeps(mProject,importPath,currentPath,importTargetName,currentTargetName);
      }
 catch (      IOException e) {
        LOG.error(e.toString());
      }
    }
    @Override public void onFailure(    Throwable throwable){
    }
  }
,importClass.get().getPath(),currentClass.get().getPath());
}

Fixed version (ground truth):
public void addDependency(final VirtualFile importClass,final VirtualFile currentClass){
  BuckAuditOwner.execute(mProject,new FutureCallback<String>(){
    @Override public void onSuccess(    @Nullable String buckTargetResult){
      try {
        String currentClassPath=currentClass.getPath();
        Map<String,List<String>> pathAndTargetData=mObjectMapper.readValue(buckTargetResult,Map.class);
        String importTargetName="String_Node_Str";
        String importPath="String_Node_Str";
        String currentTargetName="String_Node_Str";
        String currentPath="String_Node_Str";
        for (        Map.Entry<String,List<String>> targetAndPathEntry : pathAndTargetData.entrySet()) {
          String[] pathAndTarget=targetAndPathEntry.getValue().get(0).replaceFirst("String_Node_Str","String_Node_Str").split("String_Node_Str");
          if (currentClassPath.contains(targetAndPathEntry.getKey())) {
            currentTargetName=pathAndTarget[1];
            currentPath=pathAndTarget[0];
          }
 else {
            importTargetName=pathAndTarget[1];
            importPath=pathAndTarget[0];
          }
        }
        if (!Strings.isNullOrEmpty(currentTargetName) && !Strings.isNullOrEmpty(currentPath) && !Strings.isNullOrEmpty(importTargetName)&& !Strings.isNullOrEmpty(importPath)) {
          BuckDeps.addDeps(mProject,importPath,currentPath,importTargetName,currentTargetName);
          BuckDeps.addVisibility(mProject,importPath,currentPath,importTargetName,currentTargetName);
        }
      }
 catch (      IOException e) {
        LOG.error(e.toString());
      }
    }
    @Override public void onFailure(    Throwable throwable){
    }
  }
,importClass.getPath(),currentClass.getPath());
}