On Fri, 2 Jun 2023 03:44:48 GMT, Serguei Spitsyn <sspit...@openjdk.org> wrote:

>> The VM option EnableDynamicAgentLoading was added in JDK 9, default true, to 
>> allow deployment to choose whether to allow agents to be loaded/started in 
>> the VM. The VM option does the right thing for tools using the Attach API 
>> but jcmd JVMTI.agent_load was missed. This should be fixed to disallow 
>> loading JVMTI agents when the EnableDynamicAgentLoading is false.
>> 
>> The CSR is:
>> [JDK-8309250](https://bugs.openjdk.org/browse/JDK-8309250): jcmd 
>> JVMTI.agent_load should obey EnableDynamicAgentLoading
>> 
>> Testing:
>>  - run new test `test/jdk/sun/tools/jcmd/TestJcmdNoAgentLoad.java`
>>  - TBD: submit mach5 tiers 1-5 to make sure no new regressions are introduced
>
> Serguei Spitsyn has updated the pull request with a new target base due to a 
> merge or a rebase. The incremental webrev excludes the unrelated changes 
> brought in by the merge/rebase. The pull request contains six additional 
> commits since the last revision:
> 
>  - Merge
>  - review: use output.shouldHaveExitValue(0) in the test
>  - review: use output.shouldContain()
>  - move check for EnableDynamicAgentLoading to invoke_Agent_OnAttach
>  - minor renaming in new test TestJcmdNoAgentLoad.java
>  - 8304438: jcmd JVMTI.agent_load should obey EnableDynamicAgentLoading

test/jdk/sun/tools/jcmd/TestJcmdNoAgentLoad.java line 42:

> 40:  * @library /test/lib
> 41:  *
> 42:  * @run main/othervm -XX:-EnableDynamicAgentLoading TestJcmdNoAgentLoad

The test verifies only one scenario. I think we need to test 3 scenarios:
- -XX:-EnableDynamicAgentLoading
- +XX:-EnableDynamicAgentLoading
- default (no EnableDynamicAgentLoading arg)

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/14244#discussion_r1214741247

Reply via email to