[FLINK-22046] org.apache.flink.cep.nfa.State#toString() may has abnormal format

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: Library / CEP
• Assignee: Unassigned
• Reporter: shiqihao
• Created: 30/Mar/21 11:44
• Updated: 12/Apr/21 09:59

Description

@Override
public String toString() {
    StringBuilder builder = new StringBuilder();

    builder.append(stateType).append(" State ").append(name).append(" [\n");
    for (StateTransition<T> stateTransition : stateTransitions) {
        builder.append("\t").append(stateTransition).append(",\n");
    }
    builder.append("])"); // right parenthesis is opening
    return builder.toString();
}

As I comment above, the right parenthesis is redundent (or the left parenthesis is missing). The output of toString() method is something like this: