NPE for projects on network drive

[pebbles186]

Hey,

I'm getting following error "Error while computing completion" -> NullPointerException.
This is the case when I opened a Javascript file in a project which is stored on a network drive.
I'm using eclipse 2019-03 on Windows 10.

When copying the project into my local workspace it works fine.

When opening the file with the generic text editor there are some more error, please see the attached file.
logfile.txt

!ENTRY org.eclipse.lsp4e 4 0 2019-04-08 14:21:19.330 !MESSAGE java.lang.NullPointerException !STACK 0 java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1915) at org.eclipse.lsp4e.operations.completion.LSContentAssistProcessor.computeCompletionProposals(LSContentAssistProcessor.java:96) at org.eclipse.jface.text.contentassist.AsyncCompletionProposalPopup$2.run(AsyncCompletionProposalPopup.java:352) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.jface.text.contentassist.AsyncCompletionProposalPopup.lambda$8(AsyncCompletionProposalPopup.java:349) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590) at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1582) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) Caused by: java.lang.NullPointerException at org.eclipse.lsp4e.operations.completion.LSContentAssistProcessor.lambda$4(LSContentAssistProcessor.java:145) at org.eclipse.lsp4e.LanguageServiceAccessor.lambda$13(LanguageServiceAccessor.java:517) at java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656) at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632) at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:443) ... 4 more

[pebbles186]

I found a workaround. I added the project now via a windows uri:
X:\files\html\development -> code completion works fine
\FILESTORAGE\files\html\development -> errors occur

[mickaelistria]

Indeed, the underlying frameworks rely on a lot on the idea of file and file locations.
It was never tested with network locations AFAIK, but it would be a great addition. The issue is that I'm not aware of many contributors to this project using Windows to take care of it.
Do you have some knowledge in Eclipse plugin development to help troubleshooting that?

[pebbles186]

Unfortunately not, I have never done plugin development.

[sebthom]

Fixed in snapshot build.