RFR: 8333178: ubsan: jvmti_tools.cpp:149:16: runtime error: null pointer passed as argument 2, which is declared to never be null

[Matthias Baesken]

With ubsan enabled binaries we run into the following issue in HS :tier4 tests :
e.g. vmTestbase/nsk/jvmti/unit/FollowReferences/followref006/TestDescription.jtr

/jdk/test/hotspot/jtreg/vmTestbase/nsk/share/jvmti/jvmti_tools.cpp:149:16: runtime error: null pointer passed as argument 2, which is declared to never be null
    #0 0x7fa7a1049482 in add_option test/hotspot/jtreg/vmTestbase/nsk/share/jvmti/jvmti_tools.cpp:149
    #1 0x7fa7a1049482 in nsk_jvmti_parseOptions test/hotspot/jtreg/vmTestbase/nsk/share/jvmti/jvmti_tools.cpp:242
    #2 0x7fa7a10634cd in Agent_Initialize test/hotspot/jtreg/vmTestbase/nsk/jvmti/unit/FollowReferences/followref006/followref006.cpp:216
    #3 0x7fa79a9dbb36 in invoke_Agent_OnLoad src/hotspot/share/prims/jvmtiAgent.cpp:609
    #4 0x7fa79a9dbb36 in JvmtiAgent::load(outputStream*) src/hotspot/share/prims/jvmtiAgent.cpp:623
    #5 0x7fa79a9defd4 in load_agents src/hotspot/share/prims/jvmtiAgentList.cpp:179
    #6 0x7fa79a9defd4 in JvmtiAgentList::load_agents() src/hotspot/share/prims/jvmtiAgentList.cpp:190
    #7 0x7fa79bdad503 in Threads::create_vm(JavaVMInitArgs*, bool*) src/hotspot/share/runtime/threads.cpp:505
    #8 0x7fa79a6e531f in JNI_CreateJavaVM_inner src/hotspot/share/prims/jni.cpp:3581
    #9 0x7fa79a6e531f in JNI_CreateJavaVM src/hotspot/share/prims/jni.cpp:3672
    #10 0x7fa7a11277d5 in InitializeJVM src/java.base/share/native/libjli/java.c:1550
    #11 0x7fa7a11277d5 in JavaMain src/java.base/share/native/libjli/java.c:491
    #12 0x7fa7a1130f68 in ThreadJavaMain src/java.base/unix/native/libjli/java_md.c:653
    #13 0x7fa7a10df6e9 in start_thread (/lib64/libpthread.so.0+0xa6e9) (BuildId: 2f8d3c2d0f4d7888c2598d2ff6356537f5708a73)
    #14 0x7fa7a071550e in clone (/lib64/libc.so.6+0x11850e) (BuildId: f732026552f6adff988b338e92d466bc81a01c37)

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Commit messages:
 - JDK-8333178

Changes: https://git.openjdk.org/jdk/pull/19557/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19557&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333178
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/19557.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19557/head:pull/19557

PR: https://git.openjdk.org/jdk/pull/19557