[OODT-413] filemgr query throws NPE when some products have undefined metadata values

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.3
• Fix Version/s: 0.4
• Component/s: catalog, file manager
• Assignee: Unassigned
• Reporter: Ricky Nguyen
• Created: 16/Mar/12 01:37
• Updated: 19/Mar/12 05:09
• Resolved: 19/Mar/12 05:09

Description

We have a product type called CernerEvents. Some products of this type have values defined for met key "VpsEpisodeStartTime" and some products do not.

When we run the query:

./filemgr-client -u $FILEMGR_URL -op -sql -of '$VpsEpisodeStartTime' -q "SELECT VpsEpisodeStartTime FROM CernerEvents"

Then the following exception is seen (on XML-RPC server side):

java.lang.NullPointerException
	at java.util.Vector.addAll(Unknown Source)
	at org.apache.oodt.cas.metadata.Metadata$Group.addValues(Metadata.java:499)
	at org.apache.oodt.cas.metadata.Metadata.addMetadata(Metadata.java:124)
	at org.apache.oodt.cas.filemgr.catalog.LuceneCatalog.getReducedMetadata(LuceneCatalog.java:623)
	at org.apache.oodt.cas.filemgr.system.XmlRpcFileManager.getReducedMetadata(XmlRpcFileManager.java:1178)
	at org.apache.oodt.cas.filemgr.system.XmlRpcFileManager.complexQuery(XmlRpcFileManager.java:606)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.xmlrpc.Invoker.execute(Invoker.java:130)
	at org.apache.xmlrpc.XmlRpcWorker.invokeHandler(XmlRpcWorker.java:84)
	at org.apache.xmlrpc.XmlRpcWorker.execute(XmlRpcWorker.java:146)
	at org.apache.xmlrpc.XmlRpcServer.execute(XmlRpcServer.java:139)
	at org.apache.xmlrpc.XmlRpcServer.execute(XmlRpcServer.java:125)
	at org.apache.xmlrpc.WebServer$Connection.run(WebServer.java:761)
	at org.apache.xmlrpc.WebServer$Runner.run(WebServer.java:642)
	at java.lang.Thread.run(Unknown Source)