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

java.lang.IllegalArgumentException: Null space key in spaces list	at com.atlassian.confluence.search.v2.query.InSpaceQuery.(InSpaceQuery.java:39)