RFR: 8333130: MakeJAR2.sh uses hard-coded JDK version [v6]

[Jaikiran Pai]

On Tue, 4 Jun 2024 11:47:25 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

>> Hello Serguei, that `timeout=240` appears to have been added as part of https://bugs.openjdk.org/browse/JDK-6528548 to several of these tests back in Java 7 days because the `shell` test which was creating the jar file was timing out. The actual test itself, the one which uses the generated jar to run the agent, was completing within a second or two. 
>> 
>> With the current state of the PR I have run tier3 in our CI and there too both these tests complete within a second on all platforms. So I decided not to copy over this timeout as part of this change.
>
> My guess is these tests were timed out when executed with some specific options like -Xint, -Xcomp or any other that can slow down the execution (e.g. DeoptimizeALot).

I have now updated the PR to use the same timeout that was used for the `shell` test before the changes in this PR.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19495#discussion_r1625919837