Daniel Stoch created WICKET-7155:
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Summary: Cannot clear Application metadata - NullPointerException
Key: WICKET-7155
URL: https://issues.apache.org/jira/browse/WICKET-7155
Project: Wicket
Issue Type: Bug
Components: wicket-core
Affects Versions: 9.21.0
Reporter: Daniel Stoch
After change in WICKET-7002 now it is not possible to clear value stored in
Application under MetaDataKey.
For now the call:
{code}
application.setMetaData(KEY, null)
{code}
raises an exception:
{noformat}
java.lang.NullPointerException
at
java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
at
java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
at org.apache.wicket.Application.setMetaData(Application.java:515)
...
{noformat}
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