Can we change in method signature which will work for previous signature in Axis2 <p>I have a webservice with signature public String <code>m1(String s1, String s2)</code> and I wanted to update this signature to public String <code>m1(String s1, String s2, Object... args)</code>. Will it work for client calling <code>m1(String s1, String s2)</code>? Will it be a backword compatible? </p> <p>I tried calling but it is throwing an exception as:</p> <pre><code>Exception in thread "main" java.lang.AbstractMethodError: SampleService.m1(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String; at TestWsClient.main(TestWsClient.java:24) </code></pre>