Need absolute path for third librairies

I can't add manually my jar to my project in any way.

First, I made a lib folder and add on the configuration file :

{
    "java.compile.nullAnalysis.mode": "disabled",
    "java.project.referencedLibraries": [
        "lib/**/*.jar"
    ]
}

Didn't works, the jar is not referenced.

I tried to add it with the project setting pane, get an error :

!ENTRY org.eclipse.jdt.ls.core 4 2 2026-02-12 07:53:10.315
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jdt.ls.core".
!STACK 0
org.eclipse.jdt.internal.core.ClasspathEntry$AssertionFailedException: Path for IClasspathEntry must be absolute: lib/HyUI-0.8.4-all.jar
	at org.eclipse.jdt.core.JavaCore.newLibraryEntry(JavaCore.java:5430)
	at org.eclipse.jdt.ls.core.internal.commands.ProjectCommand.convertClasspathEntry(ProjectCommand.java:351)
	at org.eclipse.jdt.ls.core.internal.commands.ProjectCommand.updateClasspaths(ProjectCommand.java:244)
	at org.eclipse.jdt.ls.core.internal.JDTDelegateCommandHandler.executeCommand(JDTDelegateCommandHandler.java:104)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler$1.run(WorkspaceExecuteCommandHandler.java:230)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler.executeCommand(WorkspaceExecuteCommandHandler.java:220)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$4(JDTLanguageServer.java:618)
	at org.eclipse.jdt.ls.core.internal.BaseJDTLanguageServer.lambda$0(BaseJDTLanguageServer.java:87)
	at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture$Completion.exec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool.scan(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)

!ENTRY org.eclipse.jdt.ls.core 4 0 2026-02-12 07:53:10.317
!MESSAGE Error in calling delegate command handler
!STACK 0
org.eclipse.jdt.internal.core.ClasspathEntry$AssertionFailedException: Path for IClasspathEntry must be absolute: lib/HyUI-0.8.4-all.jar
	at org.eclipse.jdt.core.JavaCore.newLibraryEntry(JavaCore.java:5430)
	at org.eclipse.jdt.ls.core.internal.commands.ProjectCommand.convertClasspathEntry(ProjectCommand.java:351)
	at org.eclipse.jdt.ls.core.internal.commands.ProjectCommand.updateClasspaths(ProjectCommand.java:244)
	at org.eclipse.jdt.ls.core.internal.JDTDelegateCommandHandler.executeCommand(JDTDelegateCommandHandler.java:104)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler$1.run(WorkspaceExecuteCommandHandler.java:230)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler.executeCommand(WorkspaceExecuteCommandHandler.java:220)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$4(JDTLanguageServer.java:618)
	at org.eclipse.jdt.ls.core.internal.BaseJDTLanguageServer.lambda$0(BaseJDTLanguageServer.java:87)
	at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture$Completion.exec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool.scan(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)

The only solution/workaround I found, it's to put the jar outside of my project and use the project setting pane.

Reproduziere den Fehler mit einem projektlokalen lib/**/*.jar-Eintrag in java.project.referencedLibraries und verfolge dann die gemeldete Pfadkonvertierung in ProjectCommand.java bei Zeile 351. Bestätige, wie das Projekteinstellungsfenster den classpath bereitstellt, und identifiziere die Grenze, an der der relative Pfad abgewiesen wird. Erledigt ist die Aufgabe, wenn ein jar innerhalb des Projekts akzeptiert und ohne die Ausnahme für absolute Pfade referenziert wird.