public static @NotNull Collection<VariableInfo> getInitializedTwice(@NotNull ControlFlow flow, int startOffset, int endOffset) {
    while (startOffset < endOffset) {
      InitializedTwiceClientVisitor visitor = new InitializedTwiceClientVisitor(flow, startOffset);
      depthFirstSearch(flow, visitor, startOffset, endOffset);
      Collection<VariableInfo> result = visitor.getResult();
      if(!result.isEmpty()) {
        return result;
      }
      startOffset = findUnprocessed(startOffset, endOffset, visitor);
    }
    return Collections.emptyList();
  }
public static @NotNull Collection<VariableInfo> getInitializedTwice(@NotNull ControlFlow flow, int startOffset, int endOffset)