FULL PRODUCT VERSION :
java version "1.7.0_55"



ADDITIONAL OS VERSION INFORMATION :
Ubuntu 12.04 LTS

A DESCRIPTION OF THE PROBLEM :
Security-test.xsd:

<xs:redefine schemaLocation="./security1.xsd">
   <xs:attributeGroup name="paramGroup">
      <xs:attributeGroup ref="paramGroup"/>
      <xs:attribute name="err_label"/>
   </xs:attributeGroup>
</xs:redefine>

Security1.xsd:

<xs:redefine schemaLocation="./security.xsd">
</xs:redefine>

Security.xsd has attribute group "paramGroup" But in security1.xsd it is not defined. Now while building security-test.xsd using ant, I get an error,

--cvc-complex-type.3.2.2: Attribute 'err_label' is not allowed to appear in element 'param'--

This issue occurs in jdk 1.7 and above. In 1.6 the two level redefine work fine.

REGRESSION. Last worked in version 7u75

ADDITIONAL REGRESSION INFORMATION:
java version "1.7.0_55"
Java(TM) SE Runtime Environment (build 1.7.0_55-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.55-b03, mixed mode)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Security-test.xsd:

<xs:redefine schemaLocation="./security1.xsd">
   <xs:attributeGroup name="paramGroup">
      <xs:attributeGroup ref="paramGroup"/>
      <xs:attribute name="err_label"/>
   </xs:attributeGroup>
</xs:redefine>

Security1.xsd:

<xs:redefine schemaLocation="./security.xsd">
</xs:redefine>

Security.xsd has attribute group "paramGroup" But in security1.xsd it is not defined. Now while building security-test.xsd using ant, I get an error,

--cvc-complex-type.3.2.2: Attribute 'err_label' is not allowed to appear in element 'param'--

This issue occurs in jdk 1.7 and above. In 1.6 the two level redefine work fine.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Build successful
ACTUAL -
Build failed

--cvc-complex-type.3.2.2: Attribute 'err_label' is not allowed to appear in element 'param'--

REPRODUCIBILITY :
This bug can be reproduced always.

SUPPORT :
YES