java.lang.NullPointerException: java.lang.String.getBytes(String.java:811)

[Nick Johnson]

Just a guess, but there's a version of getBytes that takes a character set 
name as an argument, which would probably throw a NullPointerException in 
the event that the argument you passsed it was a null string.

Take a look at 
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html#getBytes(java.lang.String) 
and see if there's a chance that your HttpServletWrapper line 346 could be 
passing null for the character set name.

   Nick

On Mon, 18 Dec 2006, Marc G. Fournier wrote:

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> 
> Hate to ask when I don't believe I have near enough information, but my 
> knowledge o Java is so small that I don't even know where to begin debugging ...
> 
> Have a client running an application, that, when run on an older FreeBSD 4.x 
> machine, with jdk from ports, ran great ...
> 
> Recently, upgraded them to FreeBSD 6.x, with Diablo, and from a 32bit server to 
> a 64bit server, and now whenever they submit certain forms on the site, it 
> generates the following error:
> 
> java.lang.NullPointerException
> 	java.lang.String.getBytes(String.java:811)
> 	org.dataisland.wrapper.servlet.HttpServletWrapper.streamDocument(HttpServletWrapper.java:346)
> 	org.dataisland.wrapper.servlet.HttpServletWrapper.serveDataIsland(HttpServletWrapper.java:316)
> 	org.dataisland.wrapper.servlet.HttpServletWrapper.service(HttpServletWrapper.java:277)
> 	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> 	org.opencommerce.iface.servlet.filter.Secure.doFilter(Secure.java:64)
> 
> The site *appears* to work fine otherwise ... its an e-commerce site, and I can 
> add products to my shopping cart, search the database, etc ... but, for 
> instance, if I try to update my profile, or they try and update prices, the 
> above happens ...
> 
> Can someone suggest what, if anything, I can do to debug this a bit more 
> intelligently?
> 
> Thanks ..
> 
> 
> - ----
> Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
> Email . scrappy at hub.org                              MSN . scrappy at hub.org
> Yahoo . yscrappy               Skype: hub.org        ICQ . 7615664
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