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https://issues.apache.org/jira/browse/VELOCITY-805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claude Brisson resolved VELOCITY-805.
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Resolution: Duplicate
Assignee: Claude Brisson
Fix Version/s: 2.1
> Unable to convert instances of two separate enums on a Velocity Template
> ------------------------------------------------------------------------
>
> Key: VELOCITY-805
> URL: https://issues.apache.org/jira/browse/VELOCITY-805
> Project: Velocity
> Issue Type: Bug
> Components: Engine
> Affects Versions: 1.7
> Environment: Tomcat 6, Spring 3.0.4
> Reporter: Scott
> Assignee: Claude Brisson
> Priority: Minor
> Fix For: 2.1
>
> Attachments: Test.zip
>
>
> I am unable to utilize the valueOf method on two separate instances of an
> enum - which share the same name. The issue is that when the second valueOf
> method is called, it is invoked on the first enum which is accessed in the
> template.
> This can be tested by creating two enums with the same name in two separate
> classes. Place these onto the context, and then try to utilize the valueOf
> method and you'll receive a stack trace stating that no value exists. For
> example create two separate classes with an inner enum which both have the
> same name. Add each enum onto the context, and then in a template attempt to
> access them in the following way: $enum1.valueOf("VAL1")
> $enum2.valueOf("SOME_OTHER_VAL"). This will not work. Luckily you are able
> to do the following as a workaround: $enum1.valueOf($enum1, "VAL1")
> $enum2.valueOf($enum2, "SOME_OTHER_VAL")
> Stack trace below:
> java.lang.IllegalArgumentException: No enum const class
> org.velocity.testing.domain.User$Actions.MODIFY_NAME
> java.lang.Enum.valueOf(Enum.java:196)
> org.velocity.testing.domain.User$Actions.valueOf(User.java:1)
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> java.lang.reflect.Method.invoke(Method.java:597)
>
> org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
>
> org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
>
> org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
>
> org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
>
> org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
>
> org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
> org.apache.velocity.Template.merge(Template.java:356)
> org.apache.velocity.Template.merge(Template.java:260)
>
> org.springframework.web.servlet.view.velocity.VelocityLayoutView.renderScreenContent(VelocityLayoutView.java:180)
>
> org.springframework.web.servlet.view.velocity.VelocityLayoutView.doRender(VelocityLayoutView.java:150)
>
> org.springframework.web.servlet.view.velocity.VelocityView.renderMergedTemplateModel(VelocityView.java:291)
>
> org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:167)
>
> org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
>
> org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
>
> org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
>
> org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
>
> org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
>
> org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
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