java runtime_error ai_generated true

java.lang.NegativeArraySizeException: -1

ID: java/negative-array-size-exception

其他格式: JSON · Markdown 中文 · English
90%修复率
82%置信度
1证据数
2023-08-20首次发现

版本兼容性

版本状态引入弃用备注
Java 8 active — — —
Java 11 active — — —
Java 17 active — — —
Java 21 active — — —

根因分析

尝试创建大小为负数的数组，通常由整数溢出、大小计算错误或格式错误的输入数据引起。

English

An attempt to create an array with a negative size, typically caused by an integer overflow, a bug in size calculation, or malformed input data.

generic

官方文档

https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/NegativeArraySizeException.html

解决方案

  1. Validate the array size before creation: if (size < 0) throw new IllegalArgumentException("Size must be non-negative: " + size);
  2. Use Math.max(0, size) to clamp the size to a non-negative value as a temporary fix, but investigate the root cause.

无效尝试

常见但无效的做法:

  1. 90% 失败

    The issue is not about memory limits but a negative value; increasing heap does not fix the logic error.

  2. 80% 失败

    This masks the underlying bug, potentially leading to data corruption or silent failures.