Unable to read attributes on JBean DataSource

[RoseRoo]

Hello everyone~

 

I got 2 java beans in classpath of iReport.

In iReport, [Database]-[JavaBean DataSource]

set bean full package & class name, click [Read attributes],

it should read bean attribute automatically right?

 

I got 2 beans, bean#A's attributes in one bean can

be read correctly by iReport,

but bean#B can't.

Click [Read attributes] but nothing happen,

no error message, no response, just like the

click event was ravened.

 

What's going on?

I can read & use bean#B yesterday......

[Rianur]

I am now having a similar problem. I can read the attributes of all beans except one. :( I am using iReport version 2.0. I enter the 'path' to the bean click the button and nothing happens. Any other bean in the same package shows the fields fine.

 

I can not nest this problem bean in another bean and drill-down to the attributes that way either.

 

I have read them from this bean in the past. I'm not sure if I was able to read the attributes using version 2.0 of iReport. I can, though, open the report in version 1.3 of iReport and read the attributes of this bean fine.

 

Any suggestions would be appreciated. Thanks.

[Rianur]

Turns out I had somehow removed a required jar from the classpath. :blush:

 

I found that running the source, a

java.lang.NoClassDefFoundError

showed up and didn't manifest itself in an error dialog or the console:

 

Code:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/objectstyle/cayenne/CayenneDataObject
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
at it.businesslogic.ireport.ReportClassLoader.loadClassData(ReportClassLoader.java:424)
at it.businesslogic.ireport.ReportClassLoader.findClass(ReportClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
at it.businesslogic.ireport.ReportClassLoader.loadClassData(ReportClassLoader.java:424)
at it.businesslogic.ireport.ReportClassLoader.findClass(ReportClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
at it.businesslogic.ireport.ReportClassLoader.loadClassData(ReportClassLoader.java:424)
at it.businesslogic.ireport.ReportClassLoader.findClass(ReportClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getDeclaredMethods(Class.java:1791)
at java.beans.Introspector$1.run(Introspector.java:1272)
at java.security.AccessController.doPrivileged(Native Method)
at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1270)
at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1136)
at java.beans.Introspector.getBeanInfo(Introspector.java:387)
at java.beans.Introspector.getBeanInfo(Introspector.java:159)
at org.apache.commons.beanutils.PropertyUtilsBean.getPropertyDescriptors(PropertyUtilsBean.java:896)
at org.apache.commons.beanutils.PropertyUtils.getPropertyDescriptors(PropertyUtils.java:326)
at it.businesslogic.ireport.data.BeanInspectorPanel.exploreBean(BeanInspectorPanel.java:340)
at it.businesslogic.ireport.data.BeanInspectorPanel.setClassName(BeanInspectorPanel.java:104)
at it.businesslogic.ireport.gui.ReportQueryDialog.jButtonReadBeanAttributes3ActionPerformed(ReportQueryDialog.java:1424)
...