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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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/**
* This package contains internal common code for implementing tracing
* frameworks, and defined a number of existing frameworks.
* <p>
* There are four tracing frameworks currently defined. The "Null" and
* "Multiplex" frameworks are used internally as part of the implementation.
* The "DTrace" framework is the prime consumer framework at the moment,
* while the "PrintStream" framework is a functional, but hidden, framework
* which can be used to track probe firings. All but the "DTrace" framework
* are defined in this package. The "DTrace" framework is implemented in the
* {@code sun.tracing.dtrace} package.
* <p>
* This package also contains the {@code ProviderSkeleton} class, which
* holds most of the common code needed for implementing frameworks.
* <p>
* The "Null" framework is used when there are no other active frameworks.
* It accomplishes absolutely nothing and is merely a placeholder so that
* the application can call the tracing routines without error.
* <p>
* The "Multiplex" framework is used when there are multiple active frameworks.
* It is initialized with the framework factories and create providers and
* probes that dispatch to each active framework in turn.
* <p>
* The "PrintStream" framework is currently a debugging framework which
* dispatches trace calls to a user-defined PrintStream class, defined by
* a property. It may some day be opened up to general use.
* <p>
* See the {@code sun.tracing.dtrace} and {@code com.sun.tracing.dtrace}
* packages for information on the "DTrace" framework.
*/
package sun.tracing;