jboss 7.2.6 is giving out of memory with ATG 11.3.2 ear deployment

We are migrating ATG11.2 to ATG11.3.2 with Jboss 7.2.6. We able to create the ear but while deploying the ear into Jboss7.2.6 we are getting Out Of Memory issue. We have increases the JVM heap memory also but still we are facing same issue.
But the same ear I am able to deploy in Jboss6.4(off-course this is not compatible, just to verify my ear is correct or not i deployed)

Please help us with the solution.

Error

12:30:06,080 ERROR [nucleusNamespace] (ServerService Thread Pool -- 147) Unable to resolve component /com/att/wireless/external/services/iaiq/InquireAvailableItemQuantityService : java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.apache.ws.commons.schema.SchemaBuilder.handleElement(SchemaBuilder.java:390)
at org.apache.ws.commons.schema.SchemaBuilder.handleSequence(SchemaBuilder.java:1549)
at org.apache.ws.commons.schema.SchemaBuilder.handleComplexType(SchemaBuilder.java:301)
at org.apache.ws.commons.schema.SchemaBuilder.handleSchemaElementChild(SchemaBuilder.java:1509)
at org.apache.ws.commons.schema.SchemaBuilder.handleXmlSchemaElement(SchemaBuilder.java:659)
at org.apache.ws.commons.schema.SchemaBuilder.build(SchemaBuilder.java:157)
at org.apache.ws.commons.schema.XmlSchemaCollection.read(XmlSchemaCollection.java:508)
at org.apache.ws.commons.schema.XmlSchemaCollection.read(XmlSchemaCollection.java:717)
at org.apache.ws.commons.schema.SchemaBuilder.resolveXmlSchema(SchemaBuilder.java:706)
at org.apache.ws.commons.schema.SchemaBuilder.handleImport(SchemaBuilder.java:539)
at org.apache.ws.commons.schema.SchemaBuilder.handleSchemaElementChild(SchemaBuilder.java:1516)
at org.apache.ws.commons.schema.SchemaBuilder.handleXmlSchemaElement(SchemaBuilder.java:659)
at org.apache.ws.commons.schema.SchemaBuilder.build(SchemaBuilder.java:157)
at org.apache.ws.commons.schema.XmlSchemaCollection.read(XmlSchemaCollection.java:508)