Discovering main class does not work with arguments

Start at JDTDelegateCommandHandler.java:94 and follow the vscode.java.resolveMainClass path into ResolveMainClassHandler. Reproduce the workspace/executeCommand request with the single file URI, then verify that the argument is handled without the String-to-ArrayList cast failure and that main-class results are narrowed to the relevant project.

Hi i am attempting to call the vscode.java.resolveMainClass with a single argument (the arguments param being array with one entry, the uri) being the uri to a file which is part of a project to which jdtls has been attached to with the java-debug extension enabled. If i try to do that, i get empty response, no errors seemingly. If i pass no uri, just call the command to resolve the main classes it returns fine, the issue here is that i have single jdtls instance which has multiple workspaces / projects attached to it, and so i would like to use the argument to narrow down the result to only the current workspace / context by passing the uri. According to the implementation, it is supposed to handle file uris passed as the first and only argument to this method to use it to resolve the result in ResolveMainClassHandler

[ERROR][2023-05-22 16:04:05] ...lsp/handlers.lua:535	"May 22, 2023, 4:04:05 PM Error in calling delegate command handler\nclass java.lang.String cannot be cast to class java.util.ArrayList (java.lang.String and java.util.ArrayList are in module java.base of loader 'bootstrap')\njava.lang.ClassCastException: class java.lang.String cannot be cast to class java.util.ArrayList (java.lang.String and java.util.ArrayList are in module java.base of loader 'bootstrap')\n\tat org.eclipse.jdt.ls.core.internal.JDTDelegateCommandHandler.executeCommand(JDTDelegateCommandHandler.java:94)\n\tat org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler$1.run(WorkspaceExecuteCommandHandler.java:230)\n\tat org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)\n\tat org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler.executeCommand(WorkspaceExecuteCommandHandler.java:220)\n\tat org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$4(JDTLanguageServer.java:585)\n\tat org.eclipse.jdt.ls.core.internal.BaseJDTLanguageServer.lambda$0(BaseJDTLanguageServer.java:87)\n\tat java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:646)\n\tat java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483)\n\tat java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)\n\tat java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)\n\tat java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)\n\tat java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)\n\tat java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)\n"

Here is what is being sent

[DEBUG][2023-05-22 16:13:01] .../vim/lsp/rpc.lua:284	"rpc.send"	{  id = 6,  jsonrpc = "2.0",  method = "workspace/executeCommand",  params = {    arguments = { "file:///home/asmodeus/.projects/javahehe/src/main/java/com/mycompany/app/App17.java" },    command = "vscode.java.resolveMainClass"  }}