My syslog (and deamon.log) is full (many, many GB of Data) with the following example:
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-615" java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-616" #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-617" #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-618" java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-619" java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-620" java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-621" #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-622" #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-626" java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
Feb 11 11:22:48 openHAB karaf[555]: Exception in thread "OH-eventexecutor-625" Exception in thread "OH-eventexecutor-624" Exception in thread "OH-eventexecutor-623" java.lang.NullPointerException
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.dequeue(LinkedBlockingQueue.java:214)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:435)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
Feb 11 11:22:48 openHAB karaf[555]: #011at java.base/java.lang.Thread.run(Thread.java:834)
When I restart openHAB is OK, But after some hours it begins again.
And when this error is written in the syslog I’m not able to send commands over basicUI (and other UIs).
In the event.log and openhab.log I see nothing related to this problem.
How can I find the source of this error? I have no glue what it is.
- Platform information:
- Hardware: RaspberryPi 4
- OS: Raspbian 5.10.11-v7l+
- Java Runtime Environment: Zulu11.43+100-CA
- openHAB version: 3.0.1
Thanks for your help.