五、GC OOM GC OOM是指在垃圾回收时，对象数量过多导致的内存溢出。异常信息为：java.lang.OutOfMemoryError: GC overhead limit exceeded。以下代码示例通过设置极小的堆内存来模拟这一问题： java public class GCOverheadOOM { public static void main (String [] args) { ...

本文将深入JVM将从不同版本的jdk对方法区展开介绍，希望对你有所启发。 一、元空间基本概念 1. 什么是JVM方法区 方法区主要是用于存储类信息、静态变量以及常量信息的。是各个线程共享的一个区域。我们都知道JVM中有个区域叫堆区，所以有时候人们也会称方法区为Non-Heap（非堆）。 在JDK8之前 ...

今天分享一套生产环境亲测有效的 “OOM 三连斩” 方案：从定位根源到代码修复，再到参数优化，三步彻底解决问题，附完整工具命令和调优模板，新手也能照葫芦画瓢！

[Help] Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException #871 Open ramen9813 opened on Jul 3, 2025 ...

在当今技术日益发展的背景下，面试官常常会问到与Java相关的OutOfMemoryError（OOM）问题，以评估候选人的专业能力。 本篇文章将深入分析OOM的多种类型及其产生原因，同时提供有效的解决方案。

Micronaut Framework 4.0.0 detects virtual thread support, available since Java 19, and uses it for the executor named "BLOCKING" if available.

Use ForkJoinPool to break down computationally intensive tasks and execute them in parallel for better Java application performance.

The easiest way to optimize your Java runtime is to supply correct JVM options and parameters. In honor of the Java 21 release, we examine the 21 most important Java JVM options you can configure.

The error 500: Java.lang.nullpointerexception is an error that is faced by some developers when executing their code. Moreover, end-users also encounter ...

This week's Java roundup for December 19th, 2022, features news from OpenJDK, JDK 20, JDK 21, Spring Cloud 2022.0.0, point releases for other Spring projects, Open Liberty 22.0.0.13, Quarkus 2.15. ...