[XMLBEANS-511] NPE @ SchemaTypeImpl.isAssignableFrom()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Version 2.5, Version 2.6.1
• Fix Version/s: Version 3.0.2
• Assignee: PJ Fanning
• Reporter: Florian Keller
• Created: 20/Mar/14 16:14
• Updated: 18/Oct/18 22:33
• Resolved: 18/Oct/18 22:33

Description

I caught following NullPointerException, using XmlBeans Version 2.5:

java.lang.NullPointerException
at org.apache.xmlbeans.impl.schema.SchemaTypeImpl.isAssignableFrom(SchemaTypeImpl.java:2267)
at org.apache.xmlbeans.impl.schema.SchemaTypeImpl.createElementType(SchemaTypeImpl.java:1044)
at org.apache.xmlbeans.impl.values.XmlObjectBase.create_element_user(XmlObjectBase.java:927)
at org.apache.xmlbeans.impl.store.Xobj.getUser(Xobj.java:1669)
at org.apache.xmlbeans.impl.store.Xobj.find_element_user(Xobj.java:2074)

Seems, like there's a missing Null-Check.
/xmlbeans/src/typeimpl/org/apache/xmlbeans/impl/schema/SchemaTypeImpl.java, line 2269 and following
type is set by type.getBaseType() which explicitly may return null. The following type.equals(this) produces above seen NPE.