Fall back to java.jdt.ls.java.home if embedded JRE fails

When deploying VSCode to an AP Computer Science lab where the students don't have admin privileges, attempts to enable the latest Extension Pack for Java (which includes the “Language Support for Java(TM) by Red Hat” extension) fail reporting “Couldn’t start client Language Support for Java” whenever they open a Java project.

Environment

• Operating System: Windows 10
• JDK version: Various (tried latest Microsoft OpenJDK 11 & 17 as well as those from Adoptium's Teemurin)
• Visual Studio Code version: 1.64.0
• Java extension version: v 1.1.0 through v1.3.0

Steps To Reproduce

1. Install latest VSCode and JDK (with JAVA_HOME set correctly)
2. Create a new Java class

Current Result

Reports “Couldn’t start client Language Support for Java” when trying to run or debug the Java code.

Expected Result

Should work like it does for users with admin privileges (or how it did for v1.0.0).

Additional Information

Works fine for users with admin privileges or if we roll the students back to v1.0.0 of this extension. Typing java -version in terminal returns correct OpenJDK version.

首先，在 Windows 10 上使用 Java 项目重现该故障，并将嵌入式 JRE 路径与 java.jdt.ls.java.home 设置进行比较。验证没有管理员权限的用户以及配置了 JAVA_HOME 时的行为。完成标准是 Language Support for Java 客户端能够启动，并且无需管理员访问权限即可运行或调试 Java 代码。