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Product Version = NetBeans IDE 6.9.1 (Build 201007282301) Operating System = Windows XP version 5.1 running on x86 Java; VM; Vendor = 1.6.0_20 Runtime = Java HotSpot(TM) Client VM 16.3-b01 I want to step by step to track program execution, but sometimes it does not work as expected, in the mean time break point can works. Once the error begin occur, I have to set break point in next statement, and then F8. The situation is difficult and different, I can not reproduce it by giving some steps.
Do you have some source files where F8 consistently does not work and you have to use breakpoints? Can you please check that the sources where F8 does not work are registered in Window -> Debugging -> Sources window?