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


Solutions on the web112

Solution icon of googlegroups
via Google Groups by Jiří Kolb, 8 months ago
This exception has no message.

Solution icon of github
via GitHub by Jorman
, 1 year ago
This exception has no message.

Solution icon of github
via GitHub by damithc
, 1 year ago
This exception has no message.

Solution icon of github
via GitHub by damithc
, 1 year ago
This exception has no message.

Solution icon of github
This exception has no message.

Solution icon of github
via GitHub by koppor
, 1 year ago
This exception has no message.

Solution icon of github
via GitHub by bjkeller
, 9 months ago
This exception has no message.

Solution icon of github
via GitHub by milendyankov
, 9 months ago
This exception has no message.

Solution icon of github
via GitHub by bdw429s
, 10 months ago
This exception has no message.

Solution icon of github
via GitHub by joewiz
, 1 year ago
This exception has no message.

Stack trace

java.lang.NullPointerException
	at java.util.Objects.requireNonNull(Objects.java:203)[?:1.8.0_101]
	at org.graylog2.shared.system.activities.Activity.<init>(Activity.java:34)[graylog.jar:?]
	at org.graylog2.inputs.InputStateListener.inputStateChanged(InputStateListener.java:57)[graylog.jar:?]
	at sun.reflect.GeneratedMethodAccessor120.invoke(Unknown Source)[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[?:1.8.0_101]
	at java.lang.reflect.Method.invoke(Method.java:498)[?:1.8.0_101]
	at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:95)[graylog.jar:?]
	at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:154)[graylog.jar:?]
	at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:80)[graylog.jar:?]
	at com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:176)[graylog.jar:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[?:1.8.0_101]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[?:1.8.0_101]
	at java.lang.Thread.run(Thread.java:745)[?:1.8.0_101]

Write tip

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

Users with the same issue

Once, 1 month ago
Once, 4 months ago
Once, 7 months ago
22 times, 1 year ago
33 more bugmates