fixed default value strings

src/java-client.js

@@ -55,7 +55,7 @@ function mapOperation(operation, namespace) {
         let type = javaType.mapJavaType(resp.type, namespace) 
         return {
             type,
-            name: `${utils.camelcase(type.baseType)}${resp.code.integer.value}`
+            name: `${utils.camelcase(type.baseType || 'result')}${resp.code.integer.value}`
         }
     })
     operation.responses = operation.responses.map(resp => {