James You did it. I just found out that I was overwriting the new betwixt.jar file wih an old one. No wonder that the same error occured during every try. I am sorry about that. I should have checked closer before sending the message below. Now I also understand the meaning of the 'continue' statement. ;)
Betwixt now works like a charm. /johan On Mon, 2002-10-14 at 01:59, [EMAIL PROTECTED] wrote: > Hi James > > Thank you for your help. > > I rebuilt the whole betwixt project but was unfortunately unsuccessful > to achieve a better result. > > I studied your code but did not fully understand the additions. You test > to see if the object is null, which it is, an just continues. I get a > null pointer exception at exactly the same spot: XMLIntrospector, line > 188 bean.getClass(), but 'bean' has the value null and I suppose the > exception comes from here. > > How can I help you with a JUnit test? I have never used JUnit. My > project is not secret and I could easily submit my single class, but the > frameworks takes time to set up: mySql, Torque, Maverick (Sourceforge), > betwixt and Tomcat. > > /johan > > > James Strachan wrote: > > > Hi johan > > > > This looks like some kind of bug. I've just applied a little patch > that > > should avoid the null pointer exception. See if this helps. If it > doesn't > > it'd be nice to refactor what you're doing into a JUnit test case we > can add > > to betwixt to help fix it (and keep it fixed) > > > > James > > ------- > > http://radio.weblogs.com/0112098/ > > ----- Original Message ----- > > From: "Johan Lundberg" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Friday, October 11, 2002 5:12 PM > > Subject: [betwixt] NullPointerException > > > > > > Hi > > > > I am using betwixt in combination with Torque (Turbine DB-layer) in > > order to generate XML, which is used for transforming XSL stylesheets > to > > HTML. > > > > Somewhere during the process of transforming the Torque beans to XML I > > get a NullPointerException from betwixt code. See the short versions > of > > stack trace and the Log4j DEBUG output below. > > > > I do not know if the exception is a bug in betwixt since I believe > that > > betwixt can handle object values that are null. > > > > Any help would be appreciated. > > > > /johan > > > > > > > > > > > > java.lang.NullPointerException > > at > > > org.apache.commons.betwixt.XMLIntrospector.introspect(XMLIntrospector.java:1 > > 88) > > at > > > org.apache.commons.betwixt.io.AbstractBeanWriter.write(AbstractBeanWriter.ja > > va:183) > > at > > > org.apache.commons.betwixt.io.AbstractBeanWriter.writeContent(AbstractBeanWr > > iter.java:496) > > at > > > org.apache.commons.betwixt.io.AbstractBeanWriter.writeRestOfElement(Abstract > > BeanWriter.java:431) > > at > > > org.apache.commons.betwixt.io.AbstractBeanWriter.write(AbstractBeanWriter.ja > > va:414) > > at > > > org.apache.commons.betwixt.io.AbstractBeanWriter.write(AbstractBeanWriter.ja > > va:216) > > at > > > org.apache.commons.betwixt.io.AbstractBeanWriter.writeContent(AbstractBeanWr > > iter.java:506) > > at > > > org.apache.commons.betwixt.io.AbstractBeanWriter.writeRestOfElement(Abstract > > BeanWriter.java:431) > > > > > > > > > > > > 37214 [Thread-4] DEBUG > org.apache.commons.betwixt.io.AbstractBeanWriter > > - Writing bean graph (qualified name 'value' > > > > 37214 [Thread-4] DEBUG org.apache.commons.betwixt.XMLIntrospector - > > Introspecting... > > > > 37214 [Thread-4] DEBUG org.apache.commons.betwixt.XMLIntrospector - > > [Lorg.apache.torque.om.SimpleKey;@538974 > > > > 37215 [Thread-4] DEBUG org.apache.commons.betwixt.XMLIntrospector - > > Attempting to lookup an XML descriptor for class: class > > [Lorg.apache.torque.om.SimpleKey; > > > > 37226 [Thread-4] DEBUG org.apache.commons.betwixt.XMLIntrospector - > > ElementDescriptor[qname=SimpleKey;,class=class > > [Lorg.apache.torque.om.SimpleKey;,singular=class > > [Lorg.apache.torque.om.SimpleKey;] > > > > 37231 [Thread-4] DEBUG org.apache.commons.betwixt.XMLIntrospector - > > XMLBeanInfo [class=class [Lorg.apache.torque.om.SimpleKey;, > > descriptor=ElementDescriptor[qname=SimpleKey;,class=class > > [Lorg.apache.torque.om.SimpleKey;,singular=class > > [Lorg.apache.torque.om.SimpleKey;]] > > > > 37243 [Thread-4] DEBUG > org.apache.commons.betwixt.io.AbstractBeanWriter > > - Writing bean graph (qualified name 'null' > > > > 37243 [Thread-4] DEBUG org.apache.commons.betwixt.XMLIntrospector - > > Introspecting... > > > > 37244 [Thread-4] DEBUG org.apache.commons.betwixt.XMLIntrospector - > > > > > > > > -- > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > __________________________________________________ > > Do You Yahoo!? > > Everything you'll ever need on one web page > > from News and Sport to Email and Music Charts > > http://uk.my.yahoo.com > > > > -- > > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > > > > > > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
