Better error log when viewing non existing deployment project release page

2015-09-01 16:26:03,518 ERROR [http-bio-8085-exec-1] [runtime] Expression deploymentProject is undefined on line 8, column 31 in page/deployment/project/viewDeploymentProjectVersions.ftl.

Expression deploymentProject is undefined on line 8, column 31 in page/deployment/project/viewDeploymentProjectVersions.ftl.
The problematic instruction:
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==> macro header [on line 243, column 1 in freemarker-lib/ui.ftl]
 in user-directive ui.header [on line 8, column 1 in page/deployment/project/viewDeploymentProjectVersions.ftl]
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Java backtrace for programmers:
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freemarker.core.InvalidReferenceException: Expression deploymentProject is undefined on line 8, column 31 in page/deployment/project/viewDeploymentProjectVersions.ftl.
	at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)
	at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:134)
	at freemarker.core.Dot._getAsTemplateModel(Dot.java:78)
	at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
	at freemarker.core.Environment.visit(Environment.java:557)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:118)
	at freemarker.core.Environment.visit(Environment.java:210)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:210)
	at freemarker.core.Environment.process(Environment.java:190)
	at freemarker.template.Template.process(Template.java:289)
	at freemarker.template.Template.process(Template.java:243)
	at org.apache.struts2.views.freemarker.FreemarkerResult.doExecute(FreemarkerResult.java:215)
	at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
	at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:371)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:275)
	at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:168)
	at com.atlassian.bamboo.ww2.interceptors.BambooWorkflowInterceptor.validateWorkflow(BambooWorkflowInterceptor.java:54)
	at com.atlassian.bamboo.ww2.interceptors.BambooWorkflowInterceptor.access$000(BambooWorkflowInterceptor.java:16)