[jira] [Created] (KARAF-7435) Setting a configuration parameter to null throws an NPE.

["Paul Spencer (Jira)" <ji...@apache.org>]

Paul Spencer created KARAF-7435:
-----------------------------------

             Summary: Setting a configuration parameter to null throws an NPE.
                 Key: KARAF-7435
                 URL: https://issues.apache.org/jira/browse/KARAF-7435
             Project: Karaf
          Issue Type: Bug
          Components: karaf
    Affects Versions: 4.3.6
            Reporter: Paul Spencer


Setting a configuration parameter to null throws a NullPointerException. The specification, [https://docs.osgi.org/specification/osgi.cmpn/7.0.0/service.configurator.html], is silent on the use of null as a property value, but includes the following "If a requested conversion cannot be performed, then the configuration is not processed and the Configurator implementation should log an error."; in addition the configuration parameter are stored in a Dictionary structure which requires a non-null key and non-null value. Although the json format supports 'null' as value and OSGi confutation appears to required non-null values, should Karaf log something like "Null value for <Property Name> not supported." instead of throwing a NPE?

***
* Thrown exception
*** 
java.lang.NullPointerException: null at org.apache.karaf.config.core.impl.JsonConfigInstaller.setConfig(JsonConfigInstaller.java:87) ~[?:?] at org.apache.karaf.config.core.impl.JsonConfigInstaller.update(JsonConfigInstaller.java:66) ~[?:?] at org.apache.felix.fileinstall.internal.DirectoryWatcher.update(DirectoryWatcher.java:1117) [!/:3.7.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.update(DirectoryWatcher.java:919) [!/:3.7.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:488) [!/:3.7.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) [!/:3.7.4] at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:316) [!/:3.7.4] 

***
* etc/foo.json
***
{ 
  "myNullValue":null
}



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