While calling soap based webservice receiving error message JAXB - IllegalAnnotationsException - Two classes has the same XML Type name issue

Issue

• User has a custom bundle X that communicates to a external rule/policy engine via SOAP WS.
• User's application feature includes this bundle and directly makes Java API calls to interact with the policy engine.
• When the bundle X tries to load the JAXBContext via newInstance(class-name), the below error message is thrown.
• Please note that, the junit test cases with in the bundle X runs without any issues in a standalone mode where as when running under Fuse context, it always throws these "IllegalAnnotationException" - Two classes has the same XML Type name.

Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 9 counts of IllegalAnnotationExceptions
Two classes have the same XML type name "{http://aaa/bbb/ccc/types}TextDataType". Use @XmlType.name and @XmlType.namespace to assign different names to them.
    this problem is related to the following location:
        at xxx.yyy.zzz.Class1
        at xxx.yyy.zzz.Class2
        at protected java.util.List xxx.yyy.zzz.Class3
        at xxx.yyy.zzz.Class4
        ---
                ---
    this problem is related to the following location:
        at xxx.yyy.zzz.Class1
        at xxx.yyy.zzz.Class2
        at protected java.util.List xxx.yyy.zzz.Class3
        at xxx.yyy.zzz.Class4
                ---
                ---
Two classes have the same XML type name "{http://aaa/bbb/ccc/types}Class1". Use @XmlType.name and @XmlType.namespace to assign different names to them.
    this problem is related to the following location:
        at xxx.yyy.zzz.Class1
        at xxx.yyy.zzz.Class2
        at protected java.util.List xxx.yyy.zzz.Class3
        at xxx.yyy.zzz.Class4
                --- 
                ---
    this problem is related to the following location:
        at xxx.yyy.zzz.Class1
        at xxx.yyy.zzz.Class2
        at protected java.util.List xxx.yyy.zzz.Class3
        at xxx.yyy.zzz.Class4
                --- 
                ---