java.lang.NullPointerException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by Mr-Frantic
, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at aQute.bnd.http.URLCache$Info.lock(URLCache.java:97)
at aQute.bnd.http.URLCache$Info.(URLCache.java:57)
at aQute.bnd.http.URLCache.get(URLCache.java:128)
at aQute.bnd.http.HttpClient.doCached0(HttpClient.java:146)
at aQute.bnd.http.HttpClient.doCached(HttpClient.java:122)
at aQute.bnd.http.HttpClient.send(HttpClient.java:111)
at aQute.bnd.http.HttpRequest.go(HttpRequest.java:186)
at aQute.maven.provider.MavenRemoteRepository.fetch(MavenRemoteRepository.java:44)
at aQute.maven.provider.MavenBackingRepository.getMetadata(MavenBackingRepository.java:94)
at aQute.maven.provider.MavenBackingRepository.getVersion(MavenBackingRepository.java:149)
at aQute.maven.provider.MavenRepository.resolveSnapshot(MavenRepository.java:185)
at aQute.maven.provider.MavenRepository.get0(MavenRepository.java:146)
at aQute.maven.provider.MavenRepository.access$000(MavenRepository.java:34)
at aQute.maven.provider.MavenRepository$1.run(MavenRepository.java:121)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)

Users with the same issue

You are the first who have seen this exception.

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.