[VELOCITY-717] Engine throws an NPE using custom macro libs if the IncludeEventHandler returns null

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.6.2
• Fix Version/s: 1.6.x, 1.7
• Component/s: Engine
• Environment: Suse Linux
• Assignee: Unassigned
• Reporter: Johann Weber
• Created: 15/May/09 19:53
• Updated: 07/Jan/18 15:33
• Resolved: 27/Apr/10 22:20

Description

The Engine throws an NPE if the IncludeEventHandler returns null.
(using merge method with a list of macro libs)

java.lang.NullPointerException
>> at java.util.Hashtable.get(Hashtable.java:333)
>> at org.apache.velocity.runtime.VelocimacroManager.getNamespace(VelocimacroManager.java:318)
>> at org.apache.velocity.runtime.VelocimacroManager.get(VelocimacroManager.java:215)
>> at org.apache.velocity.runtime.VelocimacroFactory.getVelocimacro(VelocimacroFactory.java:563)
>> at org.apache.velocity.runtime.RuntimeInstance.getVelocimacro(RuntimeInstance.java:1563)
>> at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:218)
>> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
>> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
>> at org.apache.velocity.runtime.directive.Parse.render(Parse.java:260)
>> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
>> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
>> at org.apache.velocity.Template.merge(Template.java:328)