Summary

The flag ExtendedDTraceProbes (HotSpot JVM command line flag) is to be deprecated, since it is only an alias to set DTraceMethodProbes, DTraceAllocProbes and DTraceMonitorProbes. It has no independent function.

We estimate that the flag is only rarely used (debugging with dtrace).

Other than the ExtendedDTraceProbes HotSpot JVM command line flag, no interface is to be adjusted.

Problem

The flag ExtendedDTraceProbes is unnecessary, because it is only an alias for a combination of other flags that can be set independently.

Solution

• Deprecate ExtendedDTraceProbes in JDK 19.
• Obsolete it in JDK 20 and expire it in JDK 21.

Specification

The following flag is made deprecated in JDK 19: ExtendedDTraceProbes