Solution for NoSuchMethodError

Sometime we face NoSuchMethodError exception in production environment. One of the root cause of this exception is same class exist in two different jar. But particular method is not present in the loaded class.

Lets explain with an example below exception says method readWSDL is not available in WSDLReader class.
In my project  WSDLReader class was available in two different jars namely axis-wsdl4j-1.5.1.jar and wsdl4j-1.6.2.jar. WSDLReaderinside axis jar doesn't have the method readWSDL(Ljavax/wsdl/xml/WSDLLocator;Lorg/w3c/dom/Element;). So we can exclude axis jar from pom and use only wsdl4j-1.6.2.jar.

Exception:
java.lang.NoSuchMethodError: javax.wsdl.xml.WSDLReader.readWSDL(Ljavax/wsdl/xml/WSDLLocator;Lorg/w3c/dom/Element;)Ljavax/wsdl/Definition;

POM changes:

 <dependency>  
       <groupId>com.ExampleService</groupId>  
       <artifactId>service</artifactId>  
         <exclusions>  
            <exclusion>  
             <artifactId>axis-wsdl4j</artifactId>  
             <groupId>axis</groupId>  
           </exclusion>  
         </exclusions>  
   </dependency  

               

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