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The information that is displayed under the Java Locks chart (see Figure 11-2) shows the number of locks of the threads in your application. You see information on the number of fat uncontended and contended locks, thin uncontended and contended locks, thin and fat recursive locks, and fat sleeping locks.
To record Java lock profiling data, you need to enable it from the command line when you start JRockit. If your the Java Locks section is blank, it is not enabled.
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