Program: 168780
Project: 168780
Buggy source:
protected final boolean determineElementFlushers(UpdateContext context,TypeDescriptor typeDescriptor,List<CollectionElementAttributeFlusher<E,V>> elementFlushers,Iterable<?> current){
  if (typeDescriptor.shouldFlushMutations()) {
    if (typeDescriptor.isSubview()) {
      final ViewToEntityMapper mapper=typeDescriptor.getViewToEntityMapper();
      if (typeDescriptor.isIdentifiable()) {
        for (        Object o : current) {
          if (o instanceof MutableStateTrackable) {
            MutableStateTrackable element=(MutableStateTrackable)o;
            @SuppressWarnings("String_Node_Str") DirtyAttributeFlusher<?,E,V> flusher=(DirtyAttributeFlusher<?,E,V>)mapper.getNestedDirtyFlusher(context,element,null);
            if (flusher != null) {
              elementFlushers.add(new UpdateCollectionElementAttributeFlusher<E,V>(flusher,element,optimisticLockProtected,mapper));
            }
          }
        }
      }
 else {
        for (        Object o : current) {
          if (o instanceof MutableStateTrackable) {
            MutableStateTrackable element=(MutableStateTrackable)o;
            @SuppressWarnings("String_Node_Str") DirtyAttributeFlusher<?,E,V> flusher=(DirtyAttributeFlusher<?,E,V>)mapper.getNestedDirtyFlusher(context,element,null);
            if (flusher != null) {
              return true;
            }
          }
        }
      }
    }
 else     if (typeDescriptor.isJpaEntity()) {
      for (      Object element : current) {
        if (typeDescriptor.getBasicUserType().shouldPersist(element) && typeDescriptor.shouldJpaPersist()) {
          elementFlushers.add(new PersistCollectionElementAttributeFlusher<E,V>(element,optimisticLockProtected));
        }
 else         if (typeDescriptor.shouldJpaMerge()) {
          return true;
        }
      }
    }
 else     if (typeDescriptor.getBasicUserType().supportsDirtyChecking()) {
      for (      Object element : current) {
        String[] dirtyProperties=typeDescriptor.getBasicUserType().getDirtyProperties(element);
        if (dirtyProperties != null) {
          return true;
        }
      }
    }
 else {
      throw new IllegalArgumentException("String_Node_Str" + typeDescriptor);
    }
  }
  return false;
}

Fixed version (ground truth):
protected final boolean determineElementFlushers(UpdateContext context,TypeDescriptor typeDescriptor,List<CollectionElementAttributeFlusher<E,V>> elementFlushers,Iterable<?> current){
  if (typeDescriptor.shouldFlushMutations()) {
    if (typeDescriptor.isSubview()) {
      final ViewToEntityMapper mapper=typeDescriptor.getViewToEntityMapper();
      if (typeDescriptor.isIdentifiable()) {
        for (        Object o : current) {
          if (o instanceof MutableStateTrackable) {
            MutableStateTrackable element=(MutableStateTrackable)o;
            @SuppressWarnings("String_Node_Str") DirtyAttributeFlusher<?,E,V> flusher=(DirtyAttributeFlusher<?,E,V>)(DirtyAttributeFlusher)mapper.getNestedDirtyFlusher(context,element,(DirtyAttributeFlusher)null);
            if (flusher != null) {
              elementFlushers.add(new UpdateCollectionElementAttributeFlusher<E,V>(flusher,element,optimisticLockProtected,mapper));
            }
          }
        }
      }
 else {
        for (        Object o : current) {
          if (o instanceof MutableStateTrackable) {
            MutableStateTrackable element=(MutableStateTrackable)o;
            @SuppressWarnings("String_Node_Str") DirtyAttributeFlusher<?,E,V> flusher=(DirtyAttributeFlusher<?,E,V>)(DirtyAttributeFlusher)mapper.getNestedDirtyFlusher(context,element,(DirtyAttributeFlusher)null);
            if (flusher != null) {
              return true;
            }
          }
        }
      }
    }
 else     if (typeDescriptor.isJpaEntity()) {
      for (      Object element : current) {
        if (typeDescriptor.getBasicUserType().shouldPersist(element) && typeDescriptor.shouldJpaPersist()) {
          elementFlushers.add(new PersistCollectionElementAttributeFlusher<E,V>(element,optimisticLockProtected));
        }
 else         if (typeDescriptor.shouldJpaMerge()) {
          return true;
        }
      }
    }
 else     if (typeDescriptor.getBasicUserType().supportsDirtyChecking()) {
      for (      Object element : current) {
        String[] dirtyProperties=typeDescriptor.getBasicUserType().getDirtyProperties(element);
        if (dirtyProperties != null) {
          return true;
        }
      }
    }
 else {
      throw new IllegalArgumentException("String_Node_Str" + typeDescriptor);
    }
  }
  return false;
}