chinabugotech/hutool · error · UnsupportedOperationException

Task info is not being kept!

Error message

Task info is not being kept!

What it means

Error "Task info is not being kept!" thrown in chinabugotech/hutool.

Source

Thrown at hutool-core/src/main/java/cn/hutool/core/date/StopWatch.java:316

	}

	/**
	 * 获取任务数
	 *
	 * @return 任务数
	 */
	public int getTaskCount() {
		return this.taskCount;
	}

	/**
	 * 获取任务列表
	 *
	 * @return 任务列表
	 */
	public TaskInfo[] getTaskInfo() {
		if (null == this.taskList) {
			throw new UnsupportedOperationException("Task info is not being kept!");
		}
		return this.taskList.toArray(new TaskInfo[0]);
	}

	/**
	 * 获取任务信息，类似于：
	 * <pre>
	 *     StopWatch '[id]': running time = [total] ns
	 * </pre>
	 *
	 * @return 任务信息
	 */
	public String shortSummary() {
		return shortSummary(null);
	}

	/**
	 * 获取任务信息，类似于：

View on GitHub (pinned to 8870454b2a)

Solutions

1. Construct the StopWatch with keepTaskList enabled so task info is retained.
2. Avoid calling getTaskInfo() when task keeping is disabled.

When it happens

Trigger: Thrown at hutool-core/src/main/java/cn/hutool/core/date/StopWatch.java:316 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of chinabugotech/hutool@8870454b2a (2026-08-14). Data as JSON: /api/errors/ec49011f9e73c1dc. Report an issue: GitHub.