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  • Latest Post - ‏2012-07-13T12:47:12Z by EliotMoss
EliotMoss
EliotMoss
3 Posts

Pinned topic Getting undocumented error message with SDK 7 when using JVMTI: JVMJ9CL006E

‏2012-07-06T19:04:04Z |
Pursuant to my pending question on ClassFileLoadHook misbehaving under
SDK 6, I have now tried SDK 7 and cannot get as far. I re-built my
JVMTI agent to use the SDK 7 include files and libraries, and when I
run, after instrumenting Object and a few more classes (up through
String), I get:

JVMJ9CL006E: No pre-verify data for java/lang/Object

and the run terminates. I have not been able to find any document on
this message or what it means about what I am trying to do. Can someone
please clarify? Here is the output from -version:

java version "1.7.0"
Java(TM) SE Runtime Environment (build pxa6470sr1-20120330_01(SR1))
IBM J9 VM (build 2.6, JRE 1.7.0 Linux amd64-64 20120322_106209 (JIT enabled, AOT enabled)
J9VM - R26_Java726_SR1_20120322_1720_B106209
JIT - r11_20120322_22976
GC - R26_Java726_SR1_20120322_1720_B106209
J9CL - 20120322_106209)
JCL - 20120322_01 based on Oracle 7u3-b05

Regards -- Eliot Moss
Professor, Computer Science
University of Massachusetts Amherst
Updated on 2012-07-13T12:47:12Z at 2012-07-13T12:47:12Z by EliotMoss
  • EliotMoss
    EliotMoss
    3 Posts

    Re: Getting undocumented error message with SDK 7 when using JVMTI: JVMJ9CL006E

    ‏2012-07-13T12:47:12Z  
    This was answered in another thread. The problem was that
    I was not generating frame information for the new class
    file format.

    • EM