[Jython-users] Jython-Swing beginner

[Mico S. <mic...@ya...>]

Hi all,

I am new in jython and now I am learning to use Swing in jython. I followed first example in jython wiki:

from javax.swing import JFrame
f = JFrame('Hello, World!', defaultCloseOperation=JFrame.EXIT_ON_CLOSE, size=(300, 300), locationRelativeTo=None)
f.show()

but when I run it with jython2.5b3 got errors:

Traceback (most recent call last):
  File "hello_jython.py", line 3, in <module>
    f = JFrame('Hello, World!', size = (300, 300), defaultCloseOperation = JFram
e.EXIT_ON_CLOSE, locationRelativeTo = None)
        at org.python.core.PyNone.__tojava__(PyNone.java:34)
        at org.python.core.Py.tojava(Py.java:471)
        at org.python.core.PyBeanProperty._doset(PyBeanProperty.java:61)
        at org.python.core.PyObject.__set__(PyObject.java:3629)
        at org.python.core.PyObject.object___setattr__(PyObject.java:3689)
        at org.python.core.PyObject.object___setattr__(PyObject.java:3678)
        at org.python.core.PyObject$object___setattr___exposer.__call__(Unknown
Source)
        at org.python.core.PyObjectDerived.__setattr__(PyObjectDerived.java:1026
)

java.lang.NullPointerException: java.lang.NullPointerException

but it worked in jython2.2.1. I am using jre1.6.0.

regards,

MS