Program: 28944
Project: 28944
Buggy source:
/** 
 * {@inheritDoc}<p>The default implementation returns the result of calling  {@link #visitChildren} on {@code ctx}.</p>
 * @param ctx
 */
@Override public ExecutionPlan visitExecution_plan(@NotNull SiddhiQLParser.Execution_planContext ctx){
  ExecutionPlan executionPlan=ExecutionPlan.executionPlan();
  for (  SiddhiQLParser.Plan_annotationContext annotationContext : ctx.plan_annotation()) {
    executionPlan.annotation((Annotation)visit(annotationContext));
  }
  for (  SiddhiQLParser.Definition_streamContext streamContext : ctx.definition_stream()) {
    executionPlan.defineStream((StreamDefinition)visit(streamContext));
  }
  for (  SiddhiQLParser.Definition_tableContext tableContext : ctx.definition_table()) {
    executionPlan.defineTable((TableDefinition)visit(tableContext));
  }
  for (  SiddhiQLParser.Definition_functionContext functionContext : ctx.definition_function()) {
    executionPlan.defineFunction((FunctionDefinition)visit(functionContext));
  }
  for (  SiddhiQLParser.Definition_windowContext windowContext : ctx.definition_window()) {
    executionPlan.defineWindow((WindowDefinition)visit(windowContext));
  }
  for (  SiddhiQLParser.Execution_elementContext executionElementContext : ctx.execution_element()) {
    ExecutionElement executionElement=(ExecutionElement)visit(executionElementContext);
    if (executionElement instanceof Partition) {
      executionPlan.addPartition((Partition)executionElement);
    }
 else     if (executionElement instanceof Query) {
      executionPlan.addQuery((Query)executionElement);
    }
 else {
      throw newSiddhiParserException(ctx);
    }
  }
  for (  SiddhiQLParser.Definition_triggerContext triggerContext : ctx.definition_trigger()) {
    executionPlan.defineTrigger((TriggerDefinition)visit(triggerContext));
  }
  return executionPlan;
}

Fixed version (ground truth):
/** 
 * {@inheritDoc}<p>The default implementation returns the result of calling  {@link #visitChildren} on {@code ctx}.</p>
 * @param ctx
 */
@Override public ExecutionPlan visitExecution_plan(@NotNull SiddhiQLParser.Execution_planContext ctx){
  ExecutionPlan executionPlan=ExecutionPlan.executionPlan();
  for (  SiddhiQLParser.Plan_annotationContext annotationContext : ctx.plan_annotation()) {
    executionPlan.annotation((Annotation)visit(annotationContext));
  }
  for (  SiddhiQLParser.Definition_streamContext streamContext : ctx.definition_stream()) {
    executionPlan.defineStream((StreamDefinition)visit(streamContext));
  }
  for (  SiddhiQLParser.Definition_tableContext tableContext : ctx.definition_table()) {
    executionPlan.defineTable((TableDefinition)visit(tableContext));
  }
  for (  SiddhiQLParser.Definition_functionContext functionContext : ctx.definition_function()) {
    executionPlan.defineFunction((FunctionDefinition)visit(functionContext));
  }
  for (  SiddhiQLParser.Definition_windowContext windowContext : ctx.definition_window()) {
    executionPlan.defineWindow((WindowDefinition)visit(windowContext));
  }
  for (  SiddhiQLParser.Execution_elementContext executionElementContext : ctx.execution_element()) {
    ExecutionElement executionElement=(ExecutionElement)visit(executionElementContext);
    if (executionElement instanceof Partition) {
      executionPlan.addPartition((Partition)executionElement);
    }
 else     if (executionElement instanceof Query) {
      executionPlan.addQuery((Query)executionElement);
    }
 else     if (executionElement instanceof Subscription) {
      executionPlan.addSubscription((Subscription)executionElement);
    }
 else {
      throw newSiddhiParserException(ctx);
    }
  }
  for (  SiddhiQLParser.Definition_triggerContext triggerContext : ctx.definition_trigger()) {
    executionPlan.defineTrigger((TriggerDefinition)visit(triggerContext));
  }
  return executionPlan;
}