Spring : java.lang.ClassNotFoundException: java/lang.Class

Question

I'm creating beans with the following property

  <property name="classe">
     <value type="java.lang.Class">foo.bar.SomeClass</value>
  </property>

The property "classe" is of type Class.

just like someone hinted on the following question : Spring syntax for setting a Class object?

The problem is that I'm having this exception when deploying my application :

java.lang.ClassNotFoundException: java/lang.Class
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:280)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:253)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:177)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:229)
at org.springframework.beans.factory.config.TypedStringValue.resolveTargetType(TypedStringValue.java:154)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveTargetType(BeanDefinitionValueResolver.java:196)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:163)

It looks like Steve B. in the question I linked had the same problem and it was related to some spring configuration. I'm very new to spring and dont really know how to fix this.

Thanks in advance for your answers.

What about simply <property name="classe" value="foo.bar.SomeClass"/>? Spring should figure out the correct type based on classe property type, which is java.lang.Class. — Tomasz Nurkiewicz
– Tomasz Nurkiewicz, Commented Feb 27, 2012 at 12:06
@Tomasz It actually tries to convert it to java.lang.String : org.springframework.beans.TypeMismatchException: Failed to convert property value of type [java.lang.String] to required type [java.lang.Class] for property 'classe' — Drewman
– Drewman, Commented Feb 27, 2012 at 12:32
Which version of Spring are you using? I just successfully tested it with Spring 3.1, but I'm pretty sure it works with Spring 3.0/2.5.x as well. — Tomasz Nurkiewicz
– Tomasz Nurkiewicz, Commented Feb 27, 2012 at 12:40
@TomaszNurkiewicz I'm using Spring 2.0, your solution worked, I just realized I made a mistake while typing. Can you post your solution as an answer so I can mark this post as Answered and upvote you ? — Drewman
– Drewman, Commented Feb 27, 2012 at 13:15

Tomasz Nurkiewicz · Accepted Answer · 2012-02-27 13:19:35Z

1

What about simply:

<property name="classe" value="foo.bar.SomeClass"/>

Spring should figure out the correct type based on classe property type, which is java.lang.Class. I just successfully tested it with Spring 3.1, but I'm pretty sure it works with Spring 3.0/2.5.x as well.

answered Feb 27, 2012 at 13:19

Tomasz Nurkiewicz

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