Re: Odd observation during debugging

Nathan,

On 7/11/12 12:28 PM, Nathan Bubna wrote:
> Just set:
> directive.if.tostring.nullcheck = false

We just went into production last night after testing in this
configuration for months, and we're getting this bizarre error message
that filled-up our logs files and the whole disk on the server.

Obviously, the root cause is at the bottom.:

INFO:  Velocity  [error] Could not initialize VelocityEngine -
org.apache.veloci
ty.exception.VelocityException: Velocimacro : Error using VM library :
/WEB-INF/
VM_global_library.vm
org.apache.velocity.exception.VelocityException: Velocimacro : Error
using VM li
brary : /WEB-INF/VM_global_library.vm
        at
org.apache.velocity.runtime.VelocimacroFactory.initVelocimacro(Veloci
macroFactory.java:219)
        at
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java
:274)
...
Caused by: org.apache.velocity.exception.VelocityException: Exception
thrown pro
cessing Template /WEB-INF/VM_global_library.vm
        at org.apache.velocity.Template.process(Template.java:164)
        at
org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource
(ResourceManagerImpl.java:437)
        at
org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(
ResourceManagerImpl.java:352)
        at
org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstan
ce.java:1533)
        at
org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstan
ce.java:1514)
        at
org.apache.velocity.runtime.VelocimacroFactory.initVelocimacro(Veloci
macroFactory.java:202)
        ... 28 more

Caused by: java.lang.ClassCastException:
'directive.if.tostring.nullcheck' doesn't map to a Boolean object
        at
org.apache.commons.collections.ExtendedProperties.getBoolean(Extended
Properties.java:1190)
        at
org.apache.commons.collections.ExtendedProperties.getBoolean(Extended
Properties.java:1157)
        at
org.apache.velocity.runtime.RuntimeInstance.getBoolean(RuntimeInstanc
e.java:1822)
        at
org.apache.velocity.runtime.parser.node.ASTReference.init(ASTReferenc
e.java:141)
        at
org.apache.velocity.runtime.parser.node.SimpleNode.init(SimpleNode.ja
va:309)
        at
org.apache.velocity.runtime.parser.node.ASTDirective.init(ASTDirectiv
e.java:95)
        at
org.apache.velocity.runtime.parser.node.SimpleNode.init(SimpleNode.ja
va:309)
        at org.apache.velocity.Template.initDocument(Template.java:227)
        at org.apache.velocity.Template.process(Template.java:135)
        ... 33 more

I'm going to temporarily remove this directive to get back up and
running, and I'll be looking at the code to see what's going on. If
anyone can make a suggestion in the meantime, I'm all ears.

I'm running Velocity 1.7 and Velocity Tools 2.0 with a few extra patches.

Thanks,
-chris

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