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The JVM Tool Interface \[[JVMTI 2006|AA. Bibliography#JVMTI 06]\] provides facilities for querying the internals of a JVM and includes methods for monitoring and modifying the behavior of a running Java program. These low level facilities require the use of the Java Native Interface (JNI) and C language programming. The JVM Tool Interface is typically used by development and monitoring tools. |
From the a security point of view, the JVMTI provides access to fields that would are normally be inaccessible. The interface also provides facilities for changing the behavior of a running Java program, for example, threads can be suspended or stopped. The JVMTI profiling tools can measure the time that a thread takes to execute, leaving applications vulnerable to timing attacks.
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