FULL PRODUCT VERSION :
java version "1.5.0"


ADDITIONAL OS VERSION INFORMATION :
Linux 2.6.21.4-ibmrt1.24 x86_64

A DESCRIPTION OF THE PROBLEM :
The JSlider(BoundedRangeModel) constructor adds two ChangeListeners to model. One is added in the setModel() method, the other is added in the constructor.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Invoke JSlider(BoundedRangeModel brm). Note that two ChangeListeners for the JSlider are added to the BoundedRangeModel.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Expected a single ChangeListener for the JSlider to be added to the model.
ACTUAL -
Two ChangeListeners were added to the BoundedRangeModel.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
BoundedRangeModel model = new DefaultBoundedRangeModel();
JSlider slider = new JSlider(model);

for(ChangeListener listener : model.getChangeListeners) {
    System.out.println(listener.toString());
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Create the JSlider first, then call setModel():

BoundedRangeModel model = new DefaultBoundedRangeModel();
JSlider slider = new JSlider();
slider.setModel(model);