Adding a Java Runtime Version from Java Control Panel is not working

Tested build :6u10b21 PIT

Steps to reproduce:
1.Install JRE
2.Launch Control Panel
3.Goto Java Tab and Click on View Button to view Java Runtime Settings Dialog
4.Click on Add Button
5.No row is getting added in the table.

Expected Behaviour:
Another row should be added to the table.

Clicking on Add Button gives :
java.lang.NullPointerException
        at com.sun.deploy.config.JREInfo.findJREByPath(Unknown Source)
        at com.sun.deploy.config.JREInfo.toString(Unknown Source)
        at java.lang.String.valueOf(Unknown Source)
        at java.lang.StringBuffer.append(Unknown Source)
        at com.sun.deploy.panel.JreTableModel.add(Unknown Source)
        at com.sun.deploy.panel.PluginTableModel.add(Unknown Source)
        at com.sun.deploy.panel.PluginJreDialog.addBtnActionPerformed(Unknown Source)
        at com.sun.deploy.panel.PluginJreDialog.access$200(Unknown Source)
        at com.sun.deploy.panel.PluginJreDialog$3.actionPerformed(Unknown Source)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
        at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
        at java.awt.Container.processEvent(Unknown Source)