java.lang.UnsupportedClassVersionError

I just found your extension and I’m glad someone is keeping a language tool extension up to date 😃

Describe the bug Nothing happens, no sign of any activity of the extension

Steps to reproduce Steps to reproduce the behavior:

1. Install extension
2. Install English support
3. Restart VS Code
4. Open .tex document
5. Nothing happens

Expected behavior Latex document is spell and grammar checked.

LTeX configuration "ltex.trace.server": "verbose"

Log files

java.lang.UnsupportedClassVersionError: App has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main"

Version information

• Operating system: Windows 10 (1909)
• VS Code: 1.44.2
• LTeX: 4.9.2
• LTeX language extensions: English
• Java: 1.8.0_251

[valentjn]

Fix released in 4.9.3.

[valentjn]

@universemaster It seems I underestimated how many people still run Java 8. Oracle will be dropping support by the end of this year, and large projects such as the Eclipse platform will be moving to Java 11 pretty soon. So in the not-so-long term, there’s no other option for LT_EX to move to Java 11 as well.

As a short-term solution, I’ll revert the changes made in LT_EX 4.9.2, so Java 8 will suffice again, while we figure out a transition plan. I’m open to any kind of constructive ideas. (Maybe this is motivation for someone to tackle issue #5.)