Re: Tomcat Xml parser issue

[Christopher Schultz]

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Hash: SHA256

Vicky,

On 11/16/17 1:30 PM, Vicky B wrote:
> Thanks but the same war works fine is WebSphere and tomcat on
> Windows it is just tomcat provided by  Redhat which work different
> i.e it throws the exception

My guess is that something in your Windows environment causes the JRE
to establish the JRE-provided XML parser as the system parser *before*
your code takes over and bootstraps something else.

This is not a Tomcat problem. This is not a Linux problem. It's a
problem with the interaction of one of your libraries and what should
be a system-provided XML parser.

- -chris

> On Nov 16, 2017 11:39 PM, "Christopher Schultz" < 
> ch...@christopherschultz.net> wrote:
> 
> Vicky,
> 
> On 11/16/17 12:24 PM, Vicky B wrote:
 It is XML parser (DOM and SAX ) from oracle (doc 
 
 
2.htm>)
 
 
> .
> 
> Why do you need a custom XML parser? Why not simply use the one 
> bundled with the JRE?
> 
 Why is tomcat using XMLparserv2
> 
> Where is the xmlparserv2.jar file? Some badly-behaved libraries 
> install themselves as the "system" parser when they are used even
> if they aren't being loaded by the system or application (which
> doesn't mean YOUR application) ClassLoader. If that happens, you
> can get weird problems like this.
> 
 tomcat we have in linux machine is from redhat . Why does
 tomcat downloaded from apache tomcat site work different form
 the one provided by REDHat.
> 
> Package managers often make adjustments that make sense for their 
> environments. I suspect that this problem has less to do with
> RedHat's Tomcat package and more to do with how you deploy your
> application, its libraries, etc.
> 
 how does class loading work in tomcat.
> 
> Tomcat sets up a ClassLoader for itself to work in. For each
> webapp, a separate ClassLoader is created for them to work in with
> the Tomcat server ClassLoader as the parent. But the webapp's
> ClassLoader is a "child-first" ClassLoader meaning that classes and
> libraries bundled with the application are preferred when code is
> executing in the application's context.
> 
> If you had told us your Tomcat version (or anything else about
> your environment), we might have been able to help more, but you
> aren't providing much in the way of information.
> 
> Assuming Tomcat 8.0 (because why not?), here is the explanation
> for how class loading works in Tomcat. Almost as if someone was
> /trying/ to make that information available for people looking for
> it.
> 
> https://tomcat.apache.org/tomcat-8.0-doc/class-loader-howto.html
> 
> -chris
> 
 On Thu, Nov 16, 2017 at 8:15 PM, Christopher Schultz < 
 ch...@christopherschultz.net> wrote:
 
 Vicky,
 
 On 11/16/17 6:53 AM, Vicky B wrote:
>>> Hi All,
>>> 
>>> I have application which is using spring , ESAPI and
>>> oracle xmlparserv2.jar , this application works fine in
>>> my local tomcat on windows  but when i deployed in
>>> linux server with linux based apache tomcat i got below
>>> error when spring container  was trying to parse
>>> application specific xmls
>>> 
>>> org.apache.catalina.core.StandardContext.listenerStart 
>>> Exception sending context initialized event to
>>> listener instance of class 
>>> org.springframework.web.context.ContextLoaderListener
>>> 
>>> org.springframework.beans.factory.BeanDefinitionStoreException:
>>>
>>>
>
>>> 
Parser configuration exception parsing XML from class path
>>> resource [spring/spring-context.xml]; nested exception
>>> is javax.xml.parsers.ParserConfigurationException:
>>> Unable to validate using XSD: Your JAXP provider 
>>> [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194]
>>> does not support XML Schema. Are you running on Java
>>> 1.4 with Apache Crimson? Upgrade to Apache Xerces (or
>>> Java 1.5) for full XSD support.
>>> 
>>> 
>>> when i removed xmlparserv2.jar from my war file the 
>>> application worked fine , what is the issue is this due
>>> to class loading issue or could be possible reason for
>>> this issue . Does tomcat provide xml parser which
>>> spring loads.
 
 What is xmlparserv2.jar?
 
 -chris
> 
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RE: Tomcat Xml parser issue

[Jean Pierre Urkens]

Vicky,

I am using both SPRING and Oracle XML features in a project and indeed the 
oracle xmlparser installs itself as default parser.

To prevent this I start the VM with following settings (JDK8):

-Djavax.xml.parsers.DocumentBuilderFactory=com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl
 

-Djavax.xml.parsers.SAXParserFactory=com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl
 

-Djavax.xml.transform.TransformerFactory=com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl
 

This will force the use of default parsers that come with the JDK/JRE. And when 
I need the Oracle XMLParser (e.g. when handling XMLTYPE records/columns from 
the database) I use (within the code) the Oracle parser.


-Original Message-
From: Vicky B [mailto:vickyb2...@gmail.com] 
Sent: donderdag 16 november 2017 19:30
To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Tomcat Xml parser issue

Thanks but the same war works fine is WebSphere and tomcat on Windows it is 
just tomcat provided by  Redhat which work different i.e it throws the exception

On Nov 16, 2017 11:39 PM, "Christopher Schultz" < ch...@christopherschultz.net> 
wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> Vicky,
>
> On 11/16/17 12:24 PM, Vicky B wrote:
> > It is XML parser (DOM and SAX ) from oracle (doc 
> > <https://docs.oracle.com/cd/B10501_01/appdev.920/a96609/arj_xmlparse
> > rv
> 2.htm>)
> >
> >
> .
>
> Why do you need a custom XML parser? Why not simply use the one 
> bundled with the JRE?
>
> > Why is tomcat using XMLparserv2
>
> Where is the xmlparserv2.jar file? Some badly-behaved libraries 
> install themselves as the "system" parser when they are used even if 
> they aren't being loaded by the system or application (which doesn't 
> mean YOUR application) ClassLoader. If that happens, you can get weird 
> problems like this.
>
> > tomcat we have in linux machine is from redhat . Why does tomcat 
> > downloaded from apache tomcat site work different form the one 
> > provided by REDHat.
>
> Package managers often make adjustments that make sense for their 
> environments. I suspect that this problem has less to do with RedHat's 
> Tomcat package and more to do with how you deploy your application, 
> its libraries, etc.
>
> > how does class loading work in tomcat.
>
> Tomcat sets up a ClassLoader for itself to work in. For each webapp, a 
> separate ClassLoader is created for them to work in with the Tomcat 
> server ClassLoader as the parent. But the webapp's ClassLoader is a 
> "child-first" ClassLoader meaning that classes and libraries bundled 
> with the application are preferred when code is executing in the 
> application's context.
>
> If you had told us your Tomcat version (or anything else about your 
> environment), we might have been able to help more, but you aren't 
> providing much in the way of information.
>
> Assuming Tomcat 8.0 (because why not?), here is the explanation for 
> how class loading works in Tomcat. Almost as if someone was /trying/ 
> to make that information available for people looking for it.
>
> https://tomcat.apache.org/tomcat-8.0-doc/class-loader-howto.html
>
> - -chris
>
> > On Thu, Nov 16, 2017 at 8:15 PM, Christopher Schultz < 
> > ch...@christopherschultz.net> wrote:
> >
> > Vicky,
> >
> > On 11/16/17 6:53 AM, Vicky B wrote:
> >>>> Hi All,
> >>>>
> >>>> I have application which is using spring , ESAPI and oracle 
> >>>> xmlparserv2.jar , this application works fine in my local tomcat 
> >>>> on windows  but when i deployed in linux server with linux based 
> >>>> apache tomcat i got below error when spring container  was trying 
> >>>> to parse  application specific xmls
> >>>>
> >>>> org.apache.catalina.core.StandardContext.listenerStart
> >>>> Exception sending context initialized event to listener instance 
> >>>> of class org.springframework.web.context.ContextLoaderListener
> >>>>
> >>>> org.springframework.beans.factory.BeanDefinitionStoreException:
> >>>>
> >>>>
> Parser configuration exception parsing XML from class path
> >>>> resource [spring/spring-context.xml]; nested exception is
> >>>> javax.xml.parsers.ParserConfigurationException: Unable to 
> >>>> validate using XSD: Your JAXP provider 
> >>>> [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not 
> >>>> support XML Schema. Are you running

Re: Tomcat Xml parser issue

[Vicky B]

Thanks but the same war works fine is WebSphere and tomcat on Windows it is
just tomcat provided by  Redhat which work different i.e it throws the
exception

On Nov 16, 2017 11:39 PM, "Christopher Schultz" <
ch...@christopherschultz.net> wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> Vicky,
>
> On 11/16/17 12:24 PM, Vicky B wrote:
> > It is XML parser (DOM and SAX ) from oracle (doc
> >  2.htm>)
> >
> >
> .
>
> Why do you need a custom XML parser? Why not simply use the one
> bundled with the JRE?
>
> > Why is tomcat using XMLparserv2
>
> Where is the xmlparserv2.jar file? Some badly-behaved libraries
> install themselves as the "system" parser when they are used even if
> they aren't being loaded by the system or application (which doesn't
> mean YOUR application) ClassLoader. If that happens, you can get weird
> problems like this.
>
> > tomcat we have in linux machine is from redhat . Why does tomcat
> > downloaded from apache tomcat site work different form the one
> > provided by REDHat.
>
> Package managers often make adjustments that make sense for their
> environments. I suspect that this problem has less to do with RedHat's
> Tomcat package and more to do with how you deploy your application,
> its libraries, etc.
>
> > how does class loading work in tomcat.
>
> Tomcat sets up a ClassLoader for itself to work in. For each webapp, a
> separate ClassLoader is created for them to work in with the Tomcat
> server ClassLoader as the parent. But the webapp's ClassLoader is a
> "child-first" ClassLoader meaning that classes and libraries bundled
> with the application are preferred when code is executing in the
> application's context.
>
> If you had told us your Tomcat version (or anything else about your
> environment), we might have been able to help more, but you aren't
> providing much in the way of information.
>
> Assuming Tomcat 8.0 (because why not?), here is the explanation for
> how class loading works in Tomcat. Almost as if someone was /trying/
> to make that information available for people looking for it.
>
> https://tomcat.apache.org/tomcat-8.0-doc/class-loader-howto.html
>
> - -chris
>
> > On Thu, Nov 16, 2017 at 8:15 PM, Christopher Schultz <
> > ch...@christopherschultz.net> wrote:
> >
> > Vicky,
> >
> > On 11/16/17 6:53 AM, Vicky B wrote:
>  Hi All,
> 
>  I have application which is using spring , ESAPI and oracle
>  xmlparserv2.jar , this application works fine in my local
>  tomcat on windows  but when i deployed in linux server with
>  linux based apache tomcat i got below error when spring
>  container  was trying to parse  application specific xmls
> 
>  org.apache.catalina.core.StandardContext.listenerStart
>  Exception sending context initialized event to listener
>  instance of class
>  org.springframework.web.context.ContextLoaderListener
> 
>  org.springframework.beans.factory.BeanDefinitionStoreException:
> 
> 
> Parser configuration exception parsing XML from class path
>  resource [spring/spring-context.xml]; nested exception is
>  javax.xml.parsers.ParserConfigurationException: Unable to
>  validate using XSD: Your JAXP provider
>  [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not
>  support XML Schema. Are you running on Java 1.4 with Apache
>  Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD
>  support.
> 
> 
>  when i removed xmlparserv2.jar from my war file the
>  application worked fine , what is the issue is this due to
>  class loading issue or could be possible reason for this
>  issue . Does tomcat provide xml parser which spring loads.
> >
> > What is xmlparserv2.jar?
> >
> > -chris
> >>
> >> -
> >>
> >>
> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
> >> For additional commands, e-mail: users-h...@tomcat.apache.org
> >>
> >>
> >
> >
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Re: Tomcat Xml parser issue

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Vicky,

On 11/16/17 12:24 PM, Vicky B wrote:
> It is XML parser (DOM and SAX ) from oracle (doc 
> )
>
> 
.

Why do you need a custom XML parser? Why not simply use the one
bundled with the JRE?

> Why is tomcat using XMLparserv2

Where is the xmlparserv2.jar file? Some badly-behaved libraries
install themselves as the "system" parser when they are used even if
they aren't being loaded by the system or application (which doesn't
mean YOUR application) ClassLoader. If that happens, you can get weird
problems like this.

> tomcat we have in linux machine is from redhat . Why does tomcat
> downloaded from apache tomcat site work different form the one
> provided by REDHat.

Package managers often make adjustments that make sense for their
environments. I suspect that this problem has less to do with RedHat's
Tomcat package and more to do with how you deploy your application,
its libraries, etc.

> how does class loading work in tomcat.

Tomcat sets up a ClassLoader for itself to work in. For each webapp, a
separate ClassLoader is created for them to work in with the Tomcat
server ClassLoader as the parent. But the webapp's ClassLoader is a
"child-first" ClassLoader meaning that classes and libraries bundled
with the application are preferred when code is executing in the
application's context.

If you had told us your Tomcat version (or anything else about your
environment), we might have been able to help more, but you aren't
providing much in the way of information.

Assuming Tomcat 8.0 (because why not?), here is the explanation for
how class loading works in Tomcat. Almost as if someone was /trying/
to make that information available for people looking for it.

https://tomcat.apache.org/tomcat-8.0-doc/class-loader-howto.html

- -chris

> On Thu, Nov 16, 2017 at 8:15 PM, Christopher Schultz < 
> ch...@christopherschultz.net> wrote:
> 
> Vicky,
> 
> On 11/16/17 6:53 AM, Vicky B wrote:
 Hi All,
 
 I have application which is using spring , ESAPI and oracle 
 xmlparserv2.jar , this application works fine in my local
 tomcat on windows  but when i deployed in linux server with
 linux based apache tomcat i got below error when spring
 container  was trying to parse  application specific xmls
 
 org.apache.catalina.core.StandardContext.listenerStart
 Exception sending context initialized event to listener
 instance of class 
 org.springframework.web.context.ContextLoaderListener
 
 org.springframework.beans.factory.BeanDefinitionStoreException:

 
Parser configuration exception parsing XML from class path
 resource [spring/spring-context.xml]; nested exception is 
 javax.xml.parsers.ParserConfigurationException: Unable to
 validate using XSD: Your JAXP provider 
 [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not 
 support XML Schema. Are you running on Java 1.4 with Apache 
 Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD 
 support.
 
 
 when i removed xmlparserv2.jar from my war file the
 application worked fine , what is the issue is this due to
 class loading issue or could be possible reason for this
 issue . Does tomcat provide xml parser which spring loads.
> 
> What is xmlparserv2.jar?
> 
> -chris
>> 
>> -
>>
>> 
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
>> For additional commands, e-mail: users-h...@tomcat.apache.org
>> 
>> 
> 
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Re: Tomcat Xml parser issue

[Vicky B]

It is XML parser (DOM and SAX ) from oracle (doc
)
.  Why is tomcat using XMLparserv2  , tomcat we have in linux machine is
from redhat . Why does tomcat downloaded from apache tomcat site work
different form the one provided by REDHat . how does class loading work in
tomcat.

On Thu, Nov 16, 2017 at 8:15 PM, Christopher Schultz <
ch...@christopherschultz.net> wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> Vicky,
>
> On 11/16/17 6:53 AM, Vicky B wrote:
> > Hi All,
> >
> > I have application which is using spring , ESAPI and oracle
> > xmlparserv2.jar , this application works fine in my local tomcat on
> > windows  but when i deployed in linux server with linux based
> > apache tomcat i got below error when spring container  was trying
> > to parse  application specific xmls
> >
> > org.apache.catalina.core.StandardContext.listenerStart Exception
> > sending context initialized event to listener instance of class
> > org.springframework.web.context.ContextLoaderListener
> >
> > org.springframework.beans.factory.BeanDefinitionStoreException:
> > Parser configuration exception parsing XML from class path
> > resource [spring/spring-context.xml]; nested exception is
> > javax.xml.parsers.ParserConfigurationException: Unable to validate
> > using XSD: Your JAXP provider
> > [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not
> > support XML Schema. Are you running on Java 1.4 with Apache
> > Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD
> > support.
> >
> >
> > when i removed xmlparserv2.jar from my war file the application
> > worked fine , what is the issue is this due to class loading issue
> > or could be possible reason for this issue . Does tomcat provide
> > xml parser which spring loads.
>
> What is xmlparserv2.jar?
>
> - -chris
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-- 



*Thanks & Regards Vickyb*

Re: Tomcat Xml parser issue

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Vicky,

On 11/16/17 6:53 AM, Vicky B wrote:
> Hi All,
> 
> I have application which is using spring , ESAPI and oracle
> xmlparserv2.jar , this application works fine in my local tomcat on
> windows  but when i deployed in linux server with linux based
> apache tomcat i got below error when spring container  was trying
> to parse  application specific xmls
> 
> org.apache.catalina.core.StandardContext.listenerStart Exception
> sending context initialized event to listener instance of class 
> org.springframework.web.context.ContextLoaderListener
> 
> org.springframework.beans.factory.BeanDefinitionStoreException:
> Parser configuration exception parsing XML from class path
> resource [spring/spring-context.xml]; nested exception is 
> javax.xml.parsers.ParserConfigurationException: Unable to validate
> using XSD: Your JAXP provider
> [oracle.xml.jaxp.JXDocumentBuilderFactory@526ad194] does not
> support XML Schema. Are you running on Java 1.4 with Apache 
> Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD
> support.
> 
> 
> when i removed xmlparserv2.jar from my war file the application
> worked fine , what is the issue is this due to class loading issue
> or could be possible reason for this issue . Does tomcat provide
> xml parser which spring loads.

What is xmlparserv2.jar?

- -chris
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