jtreg JDK7 support

[Jonathan Gibbons]

The intent is that the OpenJDK tests for OpenJDK 6 and 7 should be 
runnable with jtreg using JDK 7.

Since IIRC there are no OpenJDK tests using asmtools and TestNG in 
OpenJDK 6 and 7, the issue of asmtools and TestNG using a newer 
classfile version has not arisen before.

If you want to run some new/additional TestNG tests on JDK 7, you'll 
have to build jtreg with an older, compatible version of TestNG. If you 
want to run some new/additional tests using asmtools files, you'll have 
to work with the AsmTools folk (asmtools-dev at openjdk.java.net) to ensure 
the code is compatible with JDK 7.

-- Jon


On 2/26/18 8:38 AM, Zdeněk Žamberský wrote:
> Hi,
>
> I have noticed that latest build of jtreg (tip) on adoptopenjdk is not 
> compatible with jdk7.
> Jtreg.jar itself has class versions compatible with JDK 7, but some 
> dependencies
> require JDK >=8 (namely testng.jar and asmtools.jar).
>
>
> this caused some tests fail (on JDK 7) with e.g.
>
> Failed. Execution failed: `main' threw exception: 
> java.lang.UnsupportedClassVersionError: org/testng/IReporter : 
> Unsupported major.minor version 52.0
>
>
> I tried to build jtreg myself using make/build-all.sh with JDK 7, but 
> script complained
> it requires jdk8. I tried to remove this check :) , but it failed when 
> building
> asmtools-7.0-b02. However page about building jtreg still mentions 
> both JDK 7 or JDK 8 [1].
>
> Could you please clarify what is the current status of jtreg, when it 
> comes to JDK 7 support ?
>
>
> [1] http://openjdk.java.net/jtreg/build.html
>
>
> thank you
>
> best regards,
>