Oracle parser

Hi, I'm using JDeveloper10g with Wireless Development Kit to develop a Struts application with JSP/HTML and WAP interfaces.
The web-application worked correctly until I installed the Wireless Development Kit.
After that, every time I try to start the web-application in embedded OC4J server I have an error in parsing the web-application web.xml file.
I reported the error stak-trace below.
Any suggestion would be very appreciated !!!!
Thanks a lot.
Alfredo
java.net.MalformedURLException: unknown protocol: classloader
     at java.net.URL.<init>(URL.java:544)
     at java.net.URL.<init>(URL.java)
     at java.net.URL.<init>(URL.java)
     at oracle.xml.parser.v2.NonValidatingParser.pushExternalDTD(NonValidatingParser.java:510)
     at oracle.xml.parser.v2.NonValidatingParser.parseDoctypeDecl(NonValidatingParser.java:454)
     at oracle.xml.parser.v2.NonValidatingParser.parseProlog(NonValidatingParser.java:286)
     at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:266)
     at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:149)
     at org.apache.commons.digester.Digester.parse(Digester.java:1568)
     at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1433)
     at org.apache.struts.action.ActionServlet.init(ActionServlet.java:466)
     at javax.servlet.GenericServlet.init(GenericServlet.java:259)
     at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2094)
     at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4523)
     at com.evermind.server.http.HttpApplication.initPreloadServlets(HttpApplication.java:4617)
     at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:765)
     at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:497)
     at com.evermind.server.Application.getHttpApplication(Application.java:886)
     at com.evermind.server.http.HttpServer.getHttpApplication(HttpServer.java:688)
     at com.evermind.server.http.HttpSite.getApplication(HttpSite.java:420)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:422)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
     at java.lang.Thread.run(Thread.java:534)

Hello,
I am getting the same problem. What is strange is that if I deploy the application under ..\j2ee\home\applications\... all is fine. Deploying the same application on the same server but under ..\j2ee\OC4J_Wireless\applications\... I get the same error.
Does anyone have a sollution?

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I suppose it supports DOM or a saxHandler that can provides you a DOM
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This sort of technical question needs to be addressed to one of the technical forums. Products | Database | SQL and PL/SQL would seem to be appropriate here.
Have you tried applying the latest patchset for your database? Seems to work for me on 9.2.0.5
SCOTT @ HP92 Local> select * from (
2 select dept.*,emp.ename from dept
3 left outer join emp on (emp.deptno=dept.deptno)
4 )
5 where (deptno) in
6 (
7 select deptno a from
8 (
9 select deptno,dname from dept where deptno=10
10 UNION ALL
11 select deptno,dname from dept where deptno=20
12 )
13 )
14 /
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        10 ACCOUNTING     NEW YORK      CLARK
        10 ACCOUNTING     NEW YORK      KING
        10 ACCOUNTING     NEW YORK      MILLER
        20 RESEARCH       DALLAS        SMITH
        20 RESEARCH       DALLAS        JONES
        20 RESEARCH       DALLAS        SCOTT
        20 RESEARCH       DALLAS        ADAMS
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8 rows selected.
SCOTT @ HP92 Local> select * from v$version;
BANNER
Oracle9i Enterprise Edition Release 9.2.0.5.0 - Production
PL/SQL Release 9.2.0.5.0 - Production
CORE    9.2.0.6.0       Production
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Hello and Thanks in advance for any help.
I created a synchronous process bpel. I made a partnerlink callout to an external bpel process. This partnerlink references the wsdl locally as opposed to directly referencing the process on the server. After I created the invoke and the input variable, I went back to the invoke, clicked on the "flashlight explorer" to see the elements in the input type and I get an "Empty Global Elements List" error. I have not attempted any assigns and all schemas are present in the directory. I have also tried deleting the parnerlink, invoke, and the input variable created in the invoke and then recreating all of the above.
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Oracle has opened a bug on this issue.
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Oracle parsing SQL with Hibernate

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This sort of technical question needs to be addressed to one of the technical forums. Products | Database | SQL and PL/SQL would seem to be appropriate here.
Have you tried applying the latest patchset for your database? Seems to work for me on 9.2.0.5
SCOTT @ HP92 Local> select * from (
2 select dept.*,emp.ename from dept
3 left outer join emp on (emp.deptno=dept.deptno)
4 )
5 where (deptno) in
6 (
7 select deptno a from
8 (
9 select deptno,dname from dept where deptno=10
10 UNION ALL
11 select deptno,dname from dept where deptno=20
12 )
13 )
14 /
    DEPTNO DNAME          LOC           ENAME
        10 ACCOUNTING     NEW YORK      CLARK
        10 ACCOUNTING     NEW YORK      KING
        10 ACCOUNTING     NEW YORK      MILLER
        20 RESEARCH       DALLAS        SMITH
        20 RESEARCH       DALLAS        JONES
        20 RESEARCH       DALLAS        SCOTT
        20 RESEARCH       DALLAS        ADAMS
        20 RESEARCH       DALLAS        FORD
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SCOTT @ HP92 Local> select * from v$version;
BANNER
Oracle9i Enterprise Edition Release 9.2.0.5.0 - Production
PL/SQL Release 9.2.0.5.0 - Production
CORE    9.2.0.6.0       Production
TNS for 32-bit Windows: Version 9.2.0.5.0 - Production
NLSRTL Version 9.2.0.5.0 - ProductionJustin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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Where and how can I get the Parse to Execute Ratios?

TAKE A LOOK AT THIS ARTICAL
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ANN: Oracle XML Parser for Java v2.0.0.1

A new maintenance release of the Oracle Parser for Java is
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Bug fixes for #920536, i.e. Cannot access element attributes via
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extensions using XSL pattern matching; #863890 i.e. SAX
IOException not thrown.
New APIs in the following new interface:
1. oracle.xml.parser.v2.NSResolver
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for a given namespace prefix )
New APIs in the following classes:
1. oracle.xml.parser.v2.XMLNode
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Oracle XML Team
http://technet.oracle.com
Oracle Technology Network
null

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<schedule>
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And before you ask I'll answer myself: No, I'm not the one who created the non-standard XML. It is from a third-party application which I cannot change myself and cannot get the vendor to change either.
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if you cast your clob to an xmltype then you can search and extract values based on tags.
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Hello,
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null

For those interested,
last week i reported this bug in the ibm jvm news forum.
They said that the problem had been investigated and would be fixed in their next service release.
FYI: the current release (SR7, labeled "build cx130-20010329) still has various problems wih oracle XML parser.
Remi
null

Parsing errors with CDATA tags using oracle xml parser v2

I'm using the oracle.xml.parser.v2 parser to combine a
generated xml document from a database with a static
xsl file to produce html. Within the xml document, there
are fairly large CDATA sections (500 lines) which happen
to contain javaScript.
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document! It seems that the oracle parser pukes
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Hi,
Your lucky, i've just finished a project that used the oracle parser extensively.
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The problem in brief:
Our product is a web-app that runs under various Application servers.
One of our customers who uses Oracle App server, recently upgraded from 9.0.2 (9g) to 9.0.4 (10g), and our product no longer works with the latter version.
Our product uses XML parser Xerces 1.1.
In 9.02 it was possible to replace the App servers parser with Xerces 1.1. In 9.02 it was possible to replace the App servers parser with Xerces 1.1 (We modified the opmn.xml file, setting the Java options for our oc4j instance bootclasspath with xerces parser). Hence, our product works.
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We like, oralce application server, OC4J instance for our application to use the xerces parser version qualified with our product. We understand, replacing the XML parser for the entire Oracle Application Server is not supported function.
Since, Oracle Application Server is loading the oracle 'xmlparserv2' at system class path, though the applicaton has xerces.jar in application path (either in AppLib or web-inf/lib directory, Its not a class loading issue) it is not getting used (since javax.xml.parsers.documentbuilderFactory is mapped to oracle parser).
So, it looks like the only option available to us is to modify our product to use Oracle's XML parser. This is a major software change, and we want to keep it as last resort option.
Any suggestion and help will be higly appreciated.
Perraju Nadakuduty (raju)
E-mail:[email protected]

Raju --
Thanks for the intelligent posting on a difficult issue for you.
I wasn't aware of anything specifically being introduced that prevented the bootclasspath technique from working** in the 904 release.
For 904, the bootclasspath needs to be put in the start parameters tag of the java-options tag.
<process-type id="home" module-id="OC4J" status="enabled">
<module-data>
<category id="start-parameters">
<data id="java-options" ... -Xbootclasspath/a:/java/lib/xerces.jar"/>
</category>
</module-data>
</process-type>
You can also try copying the xerces.jar into the jre/lib/ext directory so it's loaded by the system classloader and see if that works**. This will put xerces at the extension level so
**these workarounds are not supported and will put you in an unsupported situation if a problem occurs.
The good news is that have taken steps to clearly enable the separation of container versus appplication class spaces in thenext production release (10.1.3) of OC4J. We will be providing a new classloading model which cleanly separates the two namespaces and allows applications to provide their own versions or distributions of class libraries with no collisions with the OC4J runtime libraries.
I don't know of any easy ways to do what you need -- other than reworking the app to use JAXP so that the parser implementation used is pluggable as you kind of allude to. If it was possible, I'd do that rather than hard coding in the use of the Oracle XML parser.
But just to reiterate, switching in xerces at the bootclasspath level is not a supported operation since it may have an effect on the OC4J runtime operation.
cheers
-steve-

Howto force Oracle XML parser not to expand entity references?

Hi,
Is it possible to force Oracle XML parser (Java) not to expand entity references, so that they appear in DOM tree as separated nodes after parsing XML?
Example:
for following XML
<tag>abcäxyz</tag>
I get:
Element: "tag"
|-Text: "abcdxyz"
but I would like to get:
Element: "tag"
|-Text: "abc"
|
|-EntityReference: "auml"
|
|-Text: "xyz"
I've already tried to use JAXP api (setExpandEntityReferences method in java.xml.parsers.DocumentBuilderFactory), but it doesn't seem to work.
I'm using parser from XDK Java v9.2.0.2.0 Production.
Thx,
James

This is requested code sample:
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setExpandEntityReferences(false);
System.out.println("isExpandEntityReferences = "+dbf.isExpandEntityReferences());
DocumentBuilder db = dbf.newDocumentBuilder();
Document d = db.parse("file://c:/test.xml");
Element e = d.getDocumentElement();
System.out.println("documentElement"+ e.getTagName() + " nodeType=" +e.getNodeType());
System.out.println("ChildNodes:");
NodeList nodeList = e.getChildNodes();
for(int i=0; i<nodeList.getLength();i++) {
System.out.println(i+" value=\""+nodeList.item(i).getNodeValue()+"\" nodeType="+nodeList.item(i).getNodeType());
Content of test.xml:
<!DOCTYPE test SYSTEM "test.dtd">
<test>abcäxyz</test>
Content of test.dtd:
<!ELEMENT test (#PCDATA)>
<!ENTITY auml "ä">
When you run it you will get the following output:
isExpandEntityReferences = true
documentElementtest nodeType=1
ChildNodes:
0 value="abcdxyz" nodeType=3
which means that EntityReference has been expanded.
As you can see in the output the isExpandEntityReferences method returns "true", even though I set it to false in code!
Does it mean that Oracle parser simple doesn't support this feature???
Thx,
James

Bugs in Oracle XML Parser

I'm getting an error message from Oracle Parser 9.2.0.6.0 on my XML Schema.
I have multiple Schemas with no namepspace that I am including in a file with a target namespace that is also the default namespace. I am receiving an error that I have an invalid reference. In this situation I shouldn't need a prefix and my Schema should be valid.
I am able to resolve the error by removing the namespace from my file that holds the includes.
Is this a known bug? I know it was an issue in 9.2.0.4.
Thank you in advance for any information.
Kind regards,
Jessica

Thank you for the fast response, but I'm not sure I expalined my situtation well.
I am using the later:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" >
The problem is that Oracle is giving me an error on a type that is defined in an included file. The included file has no namespace, but the file in which it is included does have a namespace. The file with the target namespace is also the default. Hence, no need for a prefix on my predefined type. That being said, the Oracle parser is throwing an error, which I believe to a bug.
Additional feedback is appreciated.
Thank you,
Jessica

Why can't Oracle XML parser import a Xerces node?

I have been using XSU to obtain query results in XML as a DOM. Recently I tried to use the Document.importNode method on the generated DOM where the node to be imported was generated using the Xerces parser. The Oracle XML parser gave the following error:
java.lang.ClassCastException: org.apache.xerces.dom.DeferredElementImpl
     org.w3c.dom.Node oracle.xml.parser.v2.XMLDocument.importNode(org.w3c.dom.Node, boolean)
          XMLDocument.java:1247
I can get around the problem by parsing the XML I want to combine with the XSU generated XML with the Oracle parser, however, I would be happier if I could configure XSU to use Xerces (or another parser) via JAXP.
Will XSU have JAXP support? What is the cause of the exception above?
Gary Brown
Analyst/Developer
University of Bristol

I have been using XSU to obtain query results in XML as a DOM. Recently I tried to use the Document.importNode method on the generated DOM where the node to be imported was generated using the Xerces parser. The Oracle XML parser gave the following error:
java.lang.ClassCastException: org.apache.xerces.dom.DeferredElementImpl
     org.w3c.dom.Node oracle.xml.parser.v2.XMLDocument.importNode(org.w3c.dom.Node, boolean)
          XMLDocument.java:1247
I can get around the problem by parsing the XML I want to combine with the XSU generated XML with the Oracle parser, however, I would be happier if I could configure XSU to use Xerces (or another parser) via JAXP.Different implementation have different internal representation of DOMNode. That is why you can't import.
Will XSU have JAXP support? What is the cause of the exception above?Why you need this? Any requirement from your application?
Gary Brown
Analyst/Developer
University of Bristol

Oracle parser

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