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

Samebug tips

Do you know how to solve this issue? Write a tip to help other users and build your expert profile.

Solutions on the web

java.lang.NullPointerException:
at org.dspace.xoai.util.ItemUtils.retrieveMetadata(ItemUtils.java:189)
at org.dspace.xoai.app.XOAI.index(XOAI.java:267)
at org.dspace.xoai.app.XOAI.index(XOAI.java:209)
at org.dspace.xoai.app.XOAI.indexAll(XOAI.java:196)
at org.dspace.xoai.app.XOAI.index(XOAI.java:143)
at org.dspace.xoai.app.XOAI.main(XOAI.java:393)
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:606)
at org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:227)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Write tip

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