JDK-4913872 : JVMTI agents can't be run in a backward compatible way: -Xrun
  • Type: Bug
  • Component: hotspot
  • Sub-Component: jvmti
  • Affected Version: 5.0
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2003-08-28
  • Updated: 2017-05-16
  • Resolved: 2003-09-08
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Other
5.0 tigerFixed
Related Reports
Relates :  
JDK-4639363 - Java Platform Profiling Architecture (JSR-163)
Relates :  
JDK-4918265 - changes to agent loading code break JPDA, hprof, jdb, etc on Windows/XP ia64
Description
A JVMTI environment can be created in JVM_OnLoad (the entry point when
using -Xrun) -- however much of JVMTI functionality requires capabilities
to be set and these can only be set before the VM is initialized (that is,
in the Agent_OnLoad entry point).

For example, hprof is launched with:

	-Xrunhprof

A JVMTI version of hprof cannot be written which is launched with this
command line.
Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: tiger FIXED IN: tiger INTEGRATED IN: tiger tiger-b19
14-06-2004
EVALUATION like it says
11-06-2004
SUGGESTED FIX If -Xrun fails over to Agent_OnLoad when there is no JVM_OnLoad exist then the problem is solved. This allows agents which -- * work only with -Xrun / JVM_OnLoad * have separate -Xrun / JVM_OnLoad and -agentlib / Agent_OnLoad entries * have only the Agent_OnLoad entry which works with both -Xrun and -agentlib This takes away to functionality since currently and agent with on Agent_OnLoad when launched with -Xrun will abort.
11-06-2004