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https://issues.apache.org/jira/browse/AXIS2-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Isuru Eranga Suriarachchi resolved AXIS2-3398.
----------------------------------------------
Resolution: Fixed
Fix Version/s: 1.6
> Empty array causes other parameter to be null
> ---------------------------------------------
>
> Key: AXIS2-3398
> URL: https://issues.apache.org/jira/browse/AXIS2-3398
> Project: Axis2
> Issue Type: Bug
> Affects Versions: 1.3
> Environment: Windows XP, Tomcat 5.5
> Reporter: Stephan Rosner
> Assignee: Isuru Eranga Suriarachchi
> Priority: Critical
> Fix For: 1.6
>
> Attachments: Axis23398.aar, Axis2BugService.wsdl, client.jar,
> server.jar
>
>
> Summary: I am trying to invoke the following method via Axis2
> public void arrayFirst(String[] array, TwoStrings object)
> Whenever the first parameter (array) is an empty String array (array = new
> String[0];), the second object TwoStrings (which simply holds 2 Strings) is
> always null on the server-side no matter what you put in on the client.
> Detailed: The attached server.jar implements the following 2 methods:
> public void arrayLast(TwoStrings object, String[] array)
> public void arrayFirst(String[] array, TwoStrings object)
> Both of these simply print out the contents of the given parameters. The
> attached client.jar contains besides the generated stub the following 2 test
> cases:
> public class BugTest extends TestCase {
> /**
> * This does not work
> * Output on server side is:
> * --- arrayFirst ---
> * array.length = 1
> * stringarray[0] = ''
> * object == null
> */
> public void testArrayFirst() throws RemoteException {
> String[] stringArray = new String[0];
>
> TwoStrings twoStrings = new TwoStrings();
> twoStrings.setFirstString("first");
> twoStrings.setSecondString("second");
>
> Axis2BugServiceStub stub = new Axis2BugServiceStub();
> ArrayFirst arrayFirst = new ArrayFirst();
> arrayFirst.setArray(stringArray);
> arrayFirst.setObject(twoStrings);
>
> stub.arrayFirst(arrayFirst);
> }
>
> /**
> * This does work
> * Output on server side is:
> * --- arrayLast ---
> * array.length = 0
> * FirstString = first
> * SecondString = second
> */
> public void testArrayLast() throws RemoteException {
> String[] stringArray = new String[0];
>
> TwoStrings twoStrings = new TwoStrings();
> twoStrings.setFirstString("first");
> twoStrings.setSecondString("second");
>
> Axis2BugServiceStub stub = new Axis2BugServiceStub();
> ArrayLast arrayLast = new ArrayLast();
> arrayLast.setArray(stringArray);
> arrayLast.setObject(twoStrings);
>
> stub.arrayLast(arrayLast);
> }
> }
> Please note that in the JavaDocs of the methods I have included the printed
> out results from the server. This means that in the first case, where the
> empty array is used as the first parameter, Axis2 is thrown off so that the
> second parameter (the TwoString) results to null on the server. When the
> empty array is used as the second/last parameter things work as they should.
> Now I can only speculate about the reason, but have noted that in none of
> these 2 cases the empty array shows up as a parameter within the
> SOAP-envelope. This is the SOAP-envelope of the testArrayFirst() case:
> <?xml version='1.0' encoding='utf-8'?>
> <soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope";>
> <soapenv:Body>
> <ns2:arrayFirst xmlns:ns2="http://server.nullbug.axis2";>
> <ns2:object>
> <ns1:firstString
> xmlns:ns1="http://server.nullbug.axis2/xsd";>first</ns1:firstString>
> <ns1:secondString
> xmlns:ns1="http://server.nullbug.axis2/xsd";>second</ns1:secondString>
> </ns2:object>
> </ns2:arrayFirst>
> </soapenv:Body>
> </soapenv:Envelope>
> As a workaround we are currently setting the array explicitly to null, which
> causes the array-parameter to show up within the SOAP-envelope and to
> transmit correctly again.
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