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 Spring JIRA by Oliver Gierke, 1 year ago
This exception has no message.
via Spring JIRA by Oliver Gierke, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at java.util.concurrent.locks.ReentrantLock.tryLock(ReentrantLock.java:370)
at java.util.concurrent.ConcurrentHashMap$Segment.put(ConcurrentHashMap.java:431)
at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1129)
at java.util.concurrent.ConcurrentHashMap.readObject(ConcurrentHashMap.java:1560)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1872)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
at org.springframework.ide.eclipse.beans.core.metadata.internal.model.BeanMetadataPersistence.load(BeanMetadataPersistence.java:108)
at org.springframework.ide.eclipse.beans.core.metadata.internal.model.BeanMetadataPersistence.loadMetadata(BeanMetadataPersistence.java:81)
at org.springframework.ide.eclipse.beans.core.metadata.internal.model.BeanMetadataModel.start(BeanMetadataModel.java:133)
at org.springframework.ide.eclipse.beans.core.metadata.BeansMetadataPlugin$1.run(BeansMetadataPlugin.java:46)

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.