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From Akram Hussain <akram.hussain...@gmail.com>
Subject Re: Upgrade from Tomcat 7 to Tomcat 9.0.17
Date Tue, 16 Apr 2019 16:41:27 GMT
Hi Christofer,

I have gone through it, But it was not clear to me.

If an example is provided, how to pass resources to SharedClassLoader, it
could be helpful.

Regards,
Akram.

On Tue, Apr 16, 2019 at 7:57 PM Christopher Schultz <
chris@christopherschultz.net> wrote:

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>
> Akram,
>
> On 4/16/19 06:29, Akram Hussain wrote:
> > I have Custom SharedClassLoader in Tomcat 7 to load shared library
> > jars, which is used by different applications in that tomcat. We
> > migrated to Tomcat 9, now it is not working. How to achieve the
> > same functionality in tomcat 9.
>
> Have a look at the <Resources> which should be able to do what you
> need without any custom code:
>
> http://tomcat.apache.org/tomcat-9.0-doc/config/resources.html
>
> > In Tomcat 9 it expects resources to be passed. I don't find any
> > sample Code on how to populate resources.
> >
> > I tried like below
> >
> > public CustomSharedClassLoader(ClassLoader parent) throws Exception
> > { super(parent); //The below three lines are added by me to work
> > for Tomcat 9. StandardRoot standardRoot = new StandardRoot();
> > standardRoot.addPreResources(new DirResourceSet());
> > setResources(standardRoot);// End for tomcat 9 changes.
> >
> > for (URL urlForJars : getClassPath(SHARED_LIB)) {
> > addURL(urlForJars); } start(); }
> >
> > It didn't work.
> >
> > public class CustomSharedClassLoader extends
> > WebappClassLoader{//Which takes shared folder libarary, it returns
> > those classes.}
>
> You should be able to ditch your custom ClassLoader entirely.
>
> - -chris
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