java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at java.util.ArrayList.addAll(ArrayList.java:433)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.flattenContentModel(SchemaInspector.java:979)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.getFlattenedContentModel(SchemaInspector.java:937)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.contentModelToProperties(SchemaInspector.java:910)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.fillBeanDescriptor(SchemaInspector.java:847)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.createAddAndFillBeanDescriptor(SchemaInspector.java:466)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.getDescriptors(SchemaInspector.java:405)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.elementToProperty(SchemaInspector.java:1521)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.contentModelToProperties(SchemaInspector.java:915)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.fillBeanDescriptor(SchemaInspector.java:847)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.createAddAndFillBeanDescriptor(SchemaInspector.java:466)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.getDescriptors(SchemaInspector.java:405)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.elementToProperty(SchemaInspector.java:1521)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.contentModelToProperties(SchemaInspector.java:915)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.fillBeanDescriptor(SchemaInspector.java:847)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.createAddAndFillBeanDescriptor(SchemaInspector.java:466)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.getDescriptors(SchemaInspector.java:405)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.getDescriptors(SchemaInspector.java:353)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.createDescriptorsFromElement(SchemaInspector.java:326)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.createDescriptorForElement(SchemaInspector.java:185)
at weblogic.xml.schema.binding.internal.codegen.SchemaInspector.createDescriptors(SchemaInspector.java:132)
at weblogic.xml.schema.binding.internal.codegen.Compiler.compile(Compiler.java:281)
at weblogic.xml.schema.binding.internal.XSDTypeMappingBuilder.addTypesInSchemas(XSDTypeMappingBuilder.java:138)
at weblogic.xml.schema.binding.internal.TypeMappingBuilderBase.processSchemaTypes(TypeMappingBuilderBase.java:310)
at weblogic.webservice.tools.build.internal.Schema2JavaImpl.doTypeMapping(Schema2JavaImpl.java:297)
at weblogic.webservice.tools.build.internal.Schema2JavaImpl.run(Schema2JavaImpl.java:187)
at weblogic.webservice.tools.build.internal.WSDL2JavaImpl.run(WSDL2JavaImpl.java:192)
at weblogic.webservice.tools.build.internal.ClientGenImpl.getTypeMappingFromWSDL(ClientGenImpl.java:707)
at weblogic.webservice.tools.build.internal.ClientGenImpl.doClientGenFromWsdl(ClientGenImpl.java:403)
at weblogic.webservice.tools.build.internal.ClientGenImpl.run(ClientGenImpl.java:343)
at weblogic.webservice.clientgen.doClientGen(clientgen.java:194)
at weblogic.webservice.clientgen.runBody(clientgen.java:86)
at weblogic.utils.compiler.Tool.run(Tool.java:146)
at weblogic.utils.compiler.Tool.run(Tool.java:103)
at weblogic.webservice.clientgen.main(clientgen.java:213)

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