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From "Johnny Kewl" <j...@kewlstuff.co.za>
Subject Re: Running Embedded Tomcat from Java Web Start
Date Thu, 24 May 2007 17:38:02 GMT

----- Original Message ----- 
From: "Johnny Kewl" <john@kewlstuff.co.za>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Thursday, May 24, 2007 7:21 PM
Subject: Re: Running Embedded Tomcat from Java Web Start


> Hi Andrew,
>
> The problem is not Tomcat, its WebStart, I hate that thing... know I'm 
> going to get flamed ;)
> WebStart also seems to crash with RPC applications... and I think that as 
> soon as an application has classloaders in it, Web Start is touch and 
> go...
> Also I imagine you know you have to get certs and all that stuff....
>
> Anyway, I got so the dispondant with web start I made my own app called 
> IGNITION.
> You can get it at http://coolese.100free.com/
>
> Briefly... you have your embedded app... you build it... then look under 
> your "build" folder and you will see the class structure for your app... 
> (ie you dont have to unpack a jar).

Ha ha... correction, confusing it with my application server... just drop 
the app into the folder...
point URL at it... it will run... sorry!


> IGNITION is a web-app... you drop it into Tomcat and its installed... then 
> you drop the CLASS structure into the START folder... thats it.
> If you call that URL... it will install on the clients machine... no certs 
> required.
>
> Have Fun...
>
>
>
>
>
> ----- Original Message ----- 
> From: "Andrew Rapp" <alrapp@yahoo.com>
> To: <users@tomcat.apache.org>
> Sent: Thursday, May 24, 2007 6:39 PM
> Subject: Running Embedded Tomcat from Java Web Start
>
>
>> Hi All,
>>
>> I'm trying to launch Embedded Tomcat from Java Web Start (JNLP), but 
>> without any luck so far.  I've searched high and low and found several 
>> folks who have tried this approach but no one has seemed to succeed. 
>> Just to clarify, I'm not trying to run Java Web Start from Embedded 
>> Tomcat, but actually the reverse: start Embedded Tomcat on the client's 
>> machine, via Java Web Start.
>>
>> Tomcat starts but I get the following exception:
>>
>>            ----------> Parent Classloader:
>>                sun.misc.Launcher$AppClassLoader@11b86e7
>>                 org.apache.jasper.servlet.JspServlet
>>                java.lang.ClassNotFoundException: 
>> org.apache.jasper.servlet.JspServlet
>>    at 
>> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1359)
>>    at 
>> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1205)
>>    at 
>> org.apache.catalina.core.StandardWrapper$1.run(StandardWrapper.java:1051)
>>    at java.security.AccessController.doPrivileged(Native Method)
>>    at 
>> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1047)
>>    at 
>> org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
>>    at 
>> org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
>>    at 
>> org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
>>    at 
>> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
>>    at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
>>    at 
>> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
>>    at 
>> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
>>    at org.apache.catalina.startup.Embedded.start(Embedded.java:822)
>>
>> Apparently a classloader issue with JNLP, but I don't know how to set the 
>> classloader on Tomcat.
>>
>> I also tried launching Embedded Tomcat via a URLClassLoader.  With the 
>> URLClassLoader I get: java.security.AccessControlException: access denied 
>> (java.util.PropertyPermission catalina.home write).  It seems that the 
>> URLClassLoader is not running with the same privileges as the JNLP 
>> classloader.
>>
>> I'm using the following code to start tomcat.
>>
>>        System.setProperty("catalina.home", getPath());
>>
>>        embedded = new Embedded();
>>
>>        Engine engine = embedded.createEngine();
>>        engine.setDefaultHost("localhost");
>>
>>        host = embedded.createHost("localhost", getPath() + "/webapps");
>>        engine.addChild(host);
>>
>>        Context context = embedded.createContext("", getPath() + 
>> "/webapps/ROOT");
>>
>>        host.addChild(context);
>>
>>        embedded.addEngine(engine);
>>
>>        Connector connector = 
>> embedded.createConnector((java.net.InetAddress) null, 11080, false);
>>        embedded.addConnector(connector);
>>        embedded.start();
>>
>> Any suggestions will be appreciated.
>>
>> Andrew
>>
>>
>
>
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> 


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