intellij-quarkus: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null

Using 1.16.0.329 version. Getting the following error while working with the Quarkus project in https://github.com/quarkusio/registry.quarkus.io

Internal error: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null

java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null
	at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
	at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1807)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null
	at com.redhat.devtools.intellij.quarkus.lsp4ij.LanguageServerWrapper.registerCapability(LanguageServerWrapper.java:727)
	at com.redhat.devtools.intellij.quarkus.lsp4ij.LanguageClientImpl.lambda$registerCapability$2(LanguageClientImpl.java:85)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804)
	... 6 more

About this issue

Original URL
State: closed
Created a year ago
Reactions: 3
Comments: 16 (7 by maintainers)

Commits related to this issue

Add a check to the `registerCapability` function to prevent running if `initializeFuture` is null or already done - Fixes #748 — committed to gastaldi/intellij-quarkus by gastaldi a year ago
Add a check to the `registerCapability` function to prevent running if `initializeFuture` is null or already done - Fixes #748 — committed to gastaldi/intellij-quarkus by gastaldi a year ago
fix: Prevent potential NPE - Fixes #748 — committed to gastaldi/intellij-quarkus by gastaldi a year ago
java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null Fixes #748 Signed-off-by: azerr <azerr@redh... — committed to angelozerr/intellij-quarkus by deleted user a year ago
java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null Fixes #748 Signed-off-by: azerr <azerr@redh... — committed to redhat-developer/intellij-quarkus by deleted user a year ago

Most upvoted comments

I would like to improve the start of language server, after I will finish https://github.com/redhat-developer/intellij-quarkus/pull/819

angelozerr on Apr 26, 2023

The fix #765 for this was included in 1.17.1. See 02ba90c4de60803704270c5501be09c0bf8a0bf5 It seems to still happen to @gastaldi with 1.17.1:

Internal error: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null

java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null
	at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
	at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1807)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.concurrent.CompletableFuture.thenRun(java.lang.Runnable)" because "this.initializeFuture" is null
	at com.redhat.devtools.intellij.quarkus.lsp4ij.LanguageServerWrapper.registerCapability(LanguageServerWrapper.java:731)
	at com.redhat.devtools.intellij.quarkus.lsp4ij.LanguageClientImpl.lambda$registerCapability$2(LanguageClientImpl.java:85)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804)
	... 6 more

Reopening.

adietish on Apr 26, 2023

I can confirm this, it happened to me.

adietish on Mar 30, 2023