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[ JDK VERSION : 1.6.22 ] yesterday I have installed netbeans 7.0. It was took too long time for installation
Please provide more information. What build are you trying to install (as far as i know, 7.0 has not been released yet)? What does it mean 'too long'? Is it reproducible (happens all the times)? If so, start the installer with --verbose and attach the output.