title: Error 500: Handler processing failed&#59; nested exception is java.lang.NoSuchMethodError: java/lang/String.isEmpty&#40;&#41;Z
body: <p>I have been facing this issue with my application(SPRING +JPA+JSP)  when i click on search button after selecting my search criteria.My search criteria has two dropdownbox,one textfield,one datepicker.The issue is coming with the value binding to textfield.After clicking on submit,it will make a ajax call with the following url :(It is expected to go to the controller class with the defined method name)</p>
  
  <pre><code>/Enquiry.page?methodName=loadList&amp;
  searchVo.selectedDisr.distCode=ALL&amp;
  searchVo.selectedSupplier.Code=ALL&amp;searchVo.selectedDateAppr=
  &amp;searchVo.selectedproduct=        
  </code></pre>
  
  <p>When i remove the request parameter  <strong>&amp;searchVo.selectedproduct=</strong>    ,  it is working properly.If i keep that the following error is coming.  </p>
  
  <pre><code>Error 500: Handler processing failed&amp;#59; nested exception is    
  java.lang.NoSuchMethodError: java/lang/String.isEmpty&amp;#40;&amp;#41;Z
  </code></pre>
  
  <p><strong>But the same code and url is working in tomcat 7 but not  working in IBM websphere.</strong> I am facing this issue when i deploy my application in IBM WAS server.Please help me.</p>