Dynamic Instrumentation of Java Statically Defined Tracing

Java statically defined tracing (JSDT) enables programmers to statically add probes to their code and activate them when required, using as a framework Oracle Solaris' DTrace feature. JSDT follows user-land statically defined tracing (USDT) for C/C++, but in Java it can be taken further: let's use the Java Attach API and the class-redefinition capabilities to turn static into dynamic. In this session, hear how to easily use the DTrace framework to dynamically instrument a running Java program with JSDT probes. Gain tremendous tracing power with no static change to the code, no recompile, and no performance impact when the probes are not activated.

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