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Posted to java-dev@axis.apache.org by "Brett Walker (Commented) (JIRA)" <ji...@apache.org> on 2011/11/22 02:18:44 UTC

[jira] [Commented] (AXIS2-5190) Throwing ArrayStoreException on construction of URI List

    [ https://issues.apache.org/jira/browse/AXIS2-5190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154799#comment-13154799 ] 

Brett Walker commented on AXIS2-5190:
-------------------------------------

I have since found the root cause of this issue. It is related to a bad URI. But the structure of the following method hid the root cause:

    /**
     * @param returnArray
     * @param baseArrayClass
     * @param objectList
     */
    private static void ConvertToArbitraryObjectArray(Object returnArray,
                                                      Class baseArrayClass,
                                                      List objectList) {
        if (!(ADBBean.class.isAssignableFrom(baseArrayClass))) {
            try {
                for (int i = 0; i < objectList.size(); i++) {
                    Object o = objectList.get(i);
                    if (o == null) {
                        // if the string is null the object value must be null
                        Array.set(returnArray, i, null);
                    } else {
                        Array.set(returnArray, i, getObjectForClass(
                                baseArrayClass,
                                o.toString()));
                    }

                }
                return;
            } catch (Exception e) {
                //oops! - this cannot be converted fall through and
                //try the other alternative
            }
        }

        try {
            objectList.toArray((Object[])returnArray);
        } catch (Exception e) {
            //we are over with alternatives - throw the
            //converison exception
            throw new ObjectConversionException(e);
        }
    }

A MalformedURIException was being throw in the top half of the method resulting in the bottom half being executed. This threw the ArrayStoreException. By ignoring the exception I was unaware of the root cause. No attempt was made to log the error. If a warning message appeared in the log that would have been very helpful. I have wasted almost a day in debugging this problem.
                
> Throwing ArrayStoreException on construction of URI List
> --------------------------------------------------------
>
>                 Key: AXIS2-5190
>                 URL: https://issues.apache.org/jira/browse/AXIS2-5190
>             Project: Axis2
>          Issue Type: Bug
>          Components: databinding
>    Affects Versions: 1.6.1
>         Environment: Windows 7, 64-bit; Java 1.6.0_24; Tomcat 7.0.8
>            Reporter: Brett Walker
>            Priority: Critical
>         Attachments: request.xml, service.xsd
>
>
> This stacktrace is generated on the client side when constructing Java classes by parsing xml data
> org.apache.axis2.databinding.utils.ConverterUtil$ObjectConversionException: java.lang.ArrayStoreException 
>   at org.apache.axis2.databinding.utils.ConverterUtil.ConvertToArbitraryObjectArray(ConverterUtil.java:1211) 
>   at org.apache.axis2.databinding.utils.ConverterUtil.convertToArray(ConverterUtil.java:1172) 
>   at au.gov.business.ablis._2011_09.data.ServiceType$Factory.parse(ServiceType.java:3864) 
>   at au.gov.business.ablis._2011_09.messages.contentmanagement.RequestItemChoice_type0$Factory.parse(RequestItemChoice_type0.java:1202) 
>   at au.gov.business.ablis._2011_09.messages.contentmanagement.RequestItem_type0$Factory.parse(RequestItem_type0.java:463) 
>   at au.gov.business.ablis._2011_09.messages.contentmanagement.ManageContentRequest$Factory.parse(ManageContentRequest.java:544) 
>   at com.geometryit.blis.production.Publish.publishLicenceUsingWebService(Publish.java:762) 
>   .. 21  more (mainly tomcat portion of stacktrace, excluded for brevity)
> Caused by: java.lang.ArrayStoreException 
>   at java.lang.System.arraycopy(Native Method) 
>   at java.util.ArrayList.toArray(ArrayList.java:306) 
>   at org.apache.axis2.databinding.utils.ConverterUtil.ConvertToArbitraryObjectArray(ConverterUtil.java:1207) 
>   ... 27 more 
> The section of code that creates the Java classes follows:
> 757        StringReader in = new StringReader( xmlString ); 
> 758        XMLStreamReader reader = StAXUtils.createXMLStreamReader( in ); 
> 759 
> 760        try 
> 761        { 
> 762          ManageContentRequest.Factory.parse( reader ); 
> 763        } 
> 764        catch ( Exception e ) 
> 765        { 
> 766          this.log.error( xmlString ); 
> 767          this.log.info( e.getLocalizedMessage(), e ); 
> 768          e.printStackTrace(); 
> 769        } 
> The portion of the Java-Axis2 class that is involved in the stacktrace is 
>       java.util.ArrayList list25 = new java.util.ArrayList();
>       // Process the array and step past its final element's end.
>       list25.add(reader.getElementText());
>       //loop until we find a start element that is not part of this array
>       boolean loopDone25 = false;
>       while(!loopDone25){
>         // Ensure we are at the EndElement
>         while (!reader.isEndElement()){
>           reader.next();
>         }
>         // Step out of this element
>         reader.next();
>         // Step to next element event.
>         while (!reader.isStartElement() && !reader.isEndElement())
>           reader.next();
>         if (reader.isEndElement()){
>           //two continuous end elements means we are exiting the xml structure
>           loopDone25 = true;
>         } else {
>           if (new javax.xml.namespace.QName("http://ablis.business.gov.au/2011-09/Data","URL").equals(reader.getName())){
>             list25.add(reader.getElementText());
>           }else{
>             loopDone25 = true;
>           }
>         }
>       }
>           // call the converter utility  to convert and set the array
>       object.setURL((org.apache.axis2.databinding.types.URI[])
> 3864    org.apache.axis2.databinding.utils.ConverterUtil.convertToArray(
>           org.apache.axis2.databinding.types.URI.class,list25));
> See the attachments for the relevant xml string and the relevant xsd. These are not complete files but snippets. More detailed information can be provided if required.

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