Error returning large String arrays from web service

Hi,
I currently have an EJB that returns a String[] array that I have implemented as
a Web Service. When I execute a Java client (JSP) from Weblogic, I don't have a problem
as long as the returned array is relatively small, but when the array starts to get
a little larger (say 20 elements, about 30 chars each), I consistently get:
SAXException: java.lang.IllegalArgumentException:array element type mismatch.
Strangely enough, when my web service client is a .asp page running under MS IIS
(using the MS SOAP Toolkit), it works fine. I have returned as many as 15000 - 20000
array elements in one call. And since I am calling the same Weblogic EJB with the
MS client, I know it's a problem with the Java client, not the EJB.
Anybody know of a bug or had this experience before? Or know what I might be doing
wrong? FYI, I am using Weblogic 6.1 SP2.
Thanks,
Steve

Hi Steve,
Sure we're interested...I'll pass this along to the XML folks.
Thanks for the feedback,
Bruce
Steve Alexander wrote:
In case anyone is interested, I solved my problem. I was mis-diagnosing the problem
- thinking it was a size issue when it actually was a data issue. On the calls where
I was returning a large array, some of the array members were null. When I made them
enpty strings "", it worked. Apparently the default SAX parser BEA uses doesn't like
the nulls, whereas the MS parser doesn't care.
"Steve Alexander" <[email protected]> wrote:
Thanks Bruce,
FYI - I have reproduced the problem on WL7.0. I have turned it in to support
as you
suggested.
Steve
Bruce Stephens <[email protected]> wrote:
Hi Steve,
This does not ring any bells, however I would suggest that you file a support
case. If it
is an option you might try a later release (7.0).
Bruce
Steve Alexander wrote:
Hi,
I currently have an EJB that returns a String[] array that I have implementedas
a Web Service. When I execute a Java client (JSP) from Weblogic, I don'thave a problem
as long as the returned array is relatively small, but when the arraystarts to get
a little larger (say 20 elements, about 30 chars each), I consistentlyget:
SAXException: java.lang.IllegalArgumentException:array element type mismatch.
Strangely enough, when my web service client is a .asp page running underMS IIS
(using the MS SOAP Toolkit), it works fine. I have returned as many as15000 - 20000
array elements in one call. And since I am calling the same Weblogic
EJB
with the
MS client, I know it's a problem with the Java client, not the EJB.
Anybody know of a bug or had this experience before? Or know what I mightbe doing
wrong? FYI, I am using Weblogic 6.1 SP2.
Thanks,
Steve

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Hi Venkat,
I recommend to pass the headers in seperat variables and the data table in a array.
I did something similar, without the header, because they are fixed in my scenario.
This webservice returns a list of all Portal Roles:
     public roleModel[] getRoles() throws Exception{
               // Array List as return value
               ArrayList RoleList = new ArrayList();
               // Try Block reading portal roles
               try {
                    IRoleFactory rfact = UMFactory.getRoleFactory();
                    // Filter for PortalRoles
                    IRoleSearchFilter roleFilter = rfact.getRoleSearchFilter();
                    // Search for *
                    roleFilter.setUniqueName("*", ISearchAttribute.EQUALS_OPERATOR, false);
                    // Search all Roles
                    ISearchResult resultList = rfact.searchRoles(roleFilter);
                    // return the result list
                    if (resultList.getState() == ISearchResult.SEARCH_RESULT_OK) {
                         while (resultList.hasNext()) {
                              // read roleUid
                              String roleUid = (String) resultList.next();
                              // create roleObject for roleUid
                              IRole roleObject =     rfact.getRole(roleUid);
                              // instantiate new role for ArrayList
                              roleModel rolle = new roleModel();
                              // read DisplayName and UniqeID
                              rolle.setRole(roleObject.getDisplayName());
                              rolle.setRoleID(roleObject.getUniqueID());
                              rolle.setDescription(roleObject.getDescription());
                              // add object to ArrayList
                              RoleList.add(rolle);
                    // create new array from data type model roleModel (class)
                    // in the correspoding size
                    roleModel[] returnList = new roleModel[RoleList.size()];
                    // write ArrayList back to array
                    RoleList.toArray(returnList);
                    // return all portal roles
                    return returnList;
               // exception handling
               } catch (Exception e) {
                    throw new Exception(e);
Hope that helps!
Best Regards,
Marcel

Return Table Structure from Web Service...

Hi,
I have a web service which retrieves data from a database table. I want to use this web service from my Visual Composer to display the data on the screen.
I want to know how to return the table structure from my web service. Currently i am returning a string array (only one row of data) from my web service and displaying it in the VC. But i want to include the names of the columns as well.
I tried using 2D String[] and HashMap, both didn't work for me.
Any ideas?
Regards,
Venkat

Hi,
I have a web service which retrieves data from a database table. I want to use this web service from my Visual Composer to display the data on the screen.
I want to know how to return the table structure from my web service. Currently i am returning a string array (only one row of data) from my web service and displaying it in the VC. But i want to include the names of the columns as well.
I tried using 2D String[] and HashMap, both didn't work for me.
Any ideas?
Regards,
Venkat

401 Unauthorized Error When calling a SharePoint REST web service from SharePoint 2013 Workflow

We have our Workflow Manger installed on the same server as our SharePoint 2013 WFE development environment. When creating a SharePoint 2013 Workflow all Calls to a SharePoint 2013 REST web service results in a 401 Unauthorized error.
As an example I created a simple workflow that should return a JSON result. The REST Url returns the results in the browser without error.
Set Variable:webServiceUrl to https://<hostnamedsitecollection>/_vti_bin/client.svc/web/lists/getbytitle('ISR%20Approvers')/Items?$select=Title&$filter=Title%20eq%20%27General%27
then Build{...} Dictionary (Output to Variable:requestHeaders)
then Call [%Variable:webServiceUrl%] HTTP web service with request (ResponseContent to Variable:responseContent |ResponseHeaders to responseHeaders | ResponseStatusCode to Variable:responseCode)
The RequestHeader is set to the requestHeaders variable though the web service call properties
then Log Variable:responseCode to the workflow history list
After manually running the workflow in SharePoint on a list item in the ISR Approvers list it Logs "Unauthorized" in the Workflow History Log. It does this with every SharePoint REST web service call that I have tried through the workflow.
It doesn't have anything to do with the Workflow Manger being installed on the same machine as the SharePoint WFE does it?
Thank You for any insight

Hi,
According to your post, my understanding is that you had 401 Unauthorized Error when calling a SharePoint REST web service from SharePoint 2013 Workflow.
Please make sure you use the ‘Call HTTP Web Service’ correctly.
You can enter the URL into the brower to check whether it is correctly.
You need to
create the Request header requestHeaders
using a Dictionary:
Accept : application/json;odata=verbose
Content-Type : application/json;odata=verbose
To associate the
requestHeaders variable, select the Call action
property, set the RequestHeaders property to
requestHeaders.
Please refer to the following articles:
Working with Web Services in SharePoint 2013 Workflows using SharePoint Designer 2013
Calling the SharePoint 2013 Rest API from a SharePoint Designer
Workflow
In addtion, you need to make sure you install the workflow manager correctly.
More information:
Install and configure workflow for SharePoint Server 2013
Known Issues in Workflow Manager 1.0
Troubleshooting Workflow Manager 1.0 Management and Execution
Best Regards,
Linda Li
Linda Li
TechNet Community Support

Error returning large String arrays from web service

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