High CPU Usage

Potentially related issues:

• https://github.com/redhat-developer/vscode-java/issues/2734
• https://github.com/redhat-developer/vscode-java/issues/3387

This extension destroys my cpu usage and all the recommendations in those two threads have failed.

My setup:

• VS Code Remote extension
• AL2 instance
• RedHat version v1.36.0

The command of the largest process is:

/home/arusignu/.vscode-server/extensions/redhat.java-1.36.0-linux-x64/jre/17.0.13-linux-x86_64/bin/java 
--add-modules=ALL-SYSTEM 
--add-opens java.base/java.util=ALL-UNNAMED 
--add-opens java.base/java.lang=ALL-UNNAMED 
--add-opens java.base/sun.nio.fs=ALL-UNNAMED 
-Declipse.application=org.eclipse.jdt.ls.core.id1 
-Dosgi.bundles.defaultStartLevel=4 
-Declipse.product=org.eclipse.jdt.ls.core.product 
-Djava.import.generatesMetadataFilesAtProjectRoot=false 
-DDetectVMInstallationsJob.disabled=true 
-Dfile.encoding=utf8 
-DwatchParentProcess=false 
-XX:+UseParallelGC 
-XX:GCTimeRatio=4 
-XX:AdaptiveSizePolicyWeight=90 
-Dsun.zip.disableMemoryMapping=true 
-Xmx3G 
-Xms100m 
-Xlog:disable 
-XX:+HeapDumpOnOutOfMemoryError 
-XX:HeapDumpPath=/home/arusignu/.vscode-server/data/User/workspaceStorage/4a284380c823b70cb2d621c30898f2d8/redhat.java 
-Daether.dependencyCollector.impl=bf 
-jar /local/home/arusignu/.vscode-server/extensions/redhat.java-1.36.0-linux-x64/server/plugins/org.eclipse.equinox.launcher_1.6.900.v20240613-2009.jar 
-configuration /home/arusignu/.vscode-server/data/User/globalStorage/redhat.java/1.36.0/config_linux 
-data /home/arusignu/.vscode-server/data/User/workspaceStorage/4a284380c823b70cb2d621c30898f2d8/redhat.java/jdt_ws 
--pipe=/run/user/22366284/lsp-d372c76bc679ed73a377c6a781c99796.sock

Happy to provide more info on request

Start with the related issues 2734 and 3387, then reproduce the reported high CPU usage with VS Code Remote on the AL2 instance using Red Hat extension v1.36.0. Profile the Java/JDT language-server process shown in the report; the issue is done when the excessive CPU usage is understood and addressed or the required diagnostic evidence is documented.