Test Explorer Error: No delegateCommandHandler for vscode.java.test.findJavaProjects

[matthewbluezyoncom]

I am unable to see or run any tests via the Test Explorer in VSCode. I believe this is an issue that has been seen before and I will link to the previous issues below.

Logs from .log

!SESSION 2025-04-02 21:34:23.201 -----------------------------------------------
eclipse.buildId=unknown
java.version=21.0.6
java.vendor=Eclipse Adoptium
BootLoader constants: OS=macosx, ARCH=aarch64, WS=cocoa, NL=en_GB
Framework arguments:  --pipe=/private/var/folders/q0/qmgbnsg96gb7_z1mhct_lv7c0000gq/T/lsp-384eab231c17853539925c2830c6bfec.sock
Command-line arguments:  -data /Users/matthew/Library/Application Support/Code/User/workspaceStorage/eb178e5fac9654245e14506218f8233e/redhat.java/jdt_ws --pipe=/private/var/folders/q0/qmgbnsg96gb7_z1mhct_lv7c0000gq/T/lsp-384eab231c17853539925c2830c6bfec.sock

!ENTRY com.microsoft.java.test.plugin 4 0 2025-04-02 21:34:24.247
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Could not resolve module: com.microsoft.java.test.plugin [118]
  Unresolved requirement: Require-Bundle: org.jacoco.core; bundle-version="0.8.12"
    -> Bundle-SymbolicName: org.jacoco.core; bundle-version="0.8.12.202403310830"
       org.jacoco.core [117]
         Unresolved requirement: Import-Package: org.objectweb.asm; version="[9.7.0,9.8.0)"

	at org.eclipse.osgi.container.Module.start(Module.java:495)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$2.run(ModuleContainer.java:2111)
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$1$1.execute(EquinoxContainerAdaptor.java:146)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:2102)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:2042)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:2004)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1916)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:341)

Extension Host output log

!ENTRY org.eclipse.jdt.ls.core 1 0 2025-04-02 21:34:24.861
!MESSAGE class org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin is startedError: No delegateCommandHandler for vscode.java.test.findJavaProjects

Related issues: #1681 #1759

[jgdrneto]

I am facing the same problem

[matthewbluezyoncom]

I am facing the same problem

Suggest you read #1759 as this is the same issue and was caused by a recent update to the Redhat Java Language Server the suggested workaround is to downgrade the extension to the previous version. Details are in the other issue.

[jdneo]

Please check #1759

I'm also working on a hotfix to adopt the latest jacoco

[jdneo]

Test Runner for Java (vscjava.vscode-java-test) pre-release 0.43.2025040304 is published with the fix, please install it and let me know if you still have the problem. Thank you!