The JVM tool interface (JVM TI) is a native programming interface for use by tools. It provides both a way to inspect the state and to control the execution of applications running in the Java virtual machine (JVM). JVM TI supports the full breadth of tools that need access to JVM state, including but not limited to: profiling, debugging, monitoring, thread analysis, and coverage analysis tools.
Note: JVM TI was introduced at JDK 5.0. JVM TI replaced the Java Virtual Machine Profiler Interface (JVMPI) and the Java Virtual Machine Debug Interface (JVMDI) which, as of JDK 6, are no longer provided.
java.lang.instrument
package - a Java programming language alternate to JVM TI if
only the instrumentation functionality of JVM TI is used.* As used on this web site, the terms "Java Virtual Machine" or "JVM" mean a virtual machine for the Java platform.