Calling Right Overload Of The Java Method From Jython

I am using java library, that has overloaded methods in the class that I use. JAVA: void f(float[]); void f(Object[]); Now I call this class from jython, and I want to call the Ob

Solution 1:

It took me considerable amount of time to find out, so I decided to post a question together with the answer.

Forcing the right overload

Jython documentation tells that in order to to force a call of right overload you should cast arguments to java objects manually before the call:

from java.lang import Byte
foo(Byte(10))

However that doesn't work with java arrays.

Forcing the right overload for array

http://www.jython.org/archive/22/userguide.html#java-arrays

It's possible to create java arrays in jython. For example the following code will create in jython java array of type int[]

from jarray import array
array(python_array, 'i')

You can create Object[] like this, and force java to call the right overload.

from jarray import array
from java.lang import Object
oa = array(python_array, Object)
f(oa)