processor expression evaluator doesn't work

• User impact:

  Medium
• Configuration:

  Hide

  <expression-transformer>
  <return-argument expression="flow2use" evaluator="processor"/>
  </expression-transformer>

  Show

  <expression-transformer> <return-argument expression="flow2use" evaluator="processor"/> </expression-transformer>
• Log Output:

  Hide

  Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Invocation of init method failed; nested exception is org.mule.api.lifecycle.InitialisationException: An Expression Evaluator for "processor" is not registered with Mule. Make sure you have the the module for this expression type on your classpath. for example, if you are using an xpath expression you need to have the Mule XML module on your classpath.
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1412)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
  at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:270)
  ... 38 more
  Caused by: org.mule.api.lifecycle.InitialisationException: An Expression Evaluator for "processor" is not registered with Mule. Make sure you have the the module for this expression type on your classpath. for example, if you are using an xpath expression you need to have the Mule XML module on your classpath.
  at org.mule.expression.transformers.AbstractExpressionTransformer.initialise(AbstractExpressionTransformer.java:88)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  at java.lang.reflect.Method.invoke(Method.java:597)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1536)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1409)
  ... 41 more
  Caused by: java.lang.IllegalArgumentException: An Expression Evaluator for "processor" is not registered with Mule. Make sure you have the the module for this expression type on your classpath. for example, if you are using an xpath expression you need to have the Mule XML module on your classpath.
  at org.mule.expression.ExpressionConfig.validate(ExpressionConfig.java:99)
  at org.mule.expression.transformers.ExpressionArgument.validate(ExpressionArgument.java:95)
  at org.mule.expression.transformers.AbstractExpressionTransformer.initialise(AbstractExpressionTransformer.java:84)
  ... 48 more

  Show

  Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Invocation of init method failed; nested exception is org.mule.api.lifecycle.InitialisationException: An Expression Evaluator for "processor" is not registered with Mule. Make sure you have the the module for this expression type on your classpath. for example, if you are using an xpath expression you need to have the Mule XML module on your classpath. at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1412) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:270) ... 38 more Caused by: org.mule.api.lifecycle.InitialisationException: An Expression Evaluator for "processor" is not registered with Mule. Make sure you have the the module for this expression type on your classpath. for example, if you are using an xpath expression you need to have the Mule XML module on your classpath. at org.mule.expression.transformers.AbstractExpressionTransformer.initialise(AbstractExpressionTransformer.java:88) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1536) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1409) ... 41 more Caused by: java.lang.IllegalArgumentException: An Expression Evaluator for "processor" is not registered with Mule. Make sure you have the the module for this expression type on your classpath. for example, if you are using an xpath expression you need to have the Mule XML module on your classpath. at org.mule.expression.ExpressionConfig.validate(ExpressionConfig.java:99) at org.mule.expression.transformers.ExpressionArgument.validate(ExpressionArgument.java:95) at org.mule.expression.transformers.AbstractExpressionTransformer.initialise(AbstractExpressionTransformer.java:84) ... 48 more
• Affects Docs:

  Yes
• Similar Issues:

  None

The processor expression evaluator mentioned in the online docs doesn't work. It appears the problem is that the xsd requires "processor" but the source for MessageProcessorExpressionEvaluator is registering with the name "process". I've checked and this appears to be in the 3.1.1 source too.