Here are a couple of assertion failures from my nightly
analysis report:

New nsk.jvmti failures (from 2007.10.06)
    nsk/jvmti/AttachOnDemand/attach034
        This test failed the following assertion:

            Internal Error (src/share/vm/prims/jvmtiEnv.cpp:457)
            Error: assert(phase == JVMTI_PHASE_LIVE,"sanity check")

        on Solaris SPARC Client VM (machine jtgb4u2e). See similar
        failure for attach043 below.

The above failure was with a Dolphin-B21 JDK with a newer
VM, i.e., Dolphin-B22ish VM.


New nsk.jvmti failures (from 2007.08.21)
    nsk/jvmti/AttachOnDemand/attach043
        This test failed the following assertion:

            Internal Error (src/share/vm/prims/jvmtiEnv.cpp:457)
            Error: assert(phase == JVMTI_PHASE_LIVE,"sanity check")

        on Linux AMD64 Server VM (machine bunt).

        Update: Alan believes we have a product bug here since
            AddToSystemClassLoaderSearch() should be returning a phase
            error rather than asserting. He also believes we may have a
            timing bug in the test.

The above failure was with a Dolphin-B18 JDK with a newer
VM, i.e., Dolphin-B19ish VM.