With the new jtreg, the test is launched correctly. It's now a problem with the test. When WSL launches a Windows executable, it needs to run it with the full name (including .exe). This particular test tries to run things like:

/mnt/d/erik/jdk-jib-wsl/build/windows-x64/images/jdk/bin/javac -J-Xmx768m -J-XX:MaxRAMPercentage=1 -J-ea -J-esa pkg/A.java pkg/B.java

Which fails because it needs to be javac.exe.

To fix these tests, one thing we need to do is find a good way of identifying that the JDK under test is of Windows type and in that case add .exe to the executables. Note that checking if the execution environment happens to be WSL is not good enough. The relevant part in this case is identifying the JDK under test.

/Erik

On 2019-01-11 10:14, Jonathan Gibbons wrote:
I'm pretty sure I know the problem. I'll post an update to jtreg.

-- Jon

On 01/11/2019 09:44 AM, Erik Joelsson wrote:
Hello,

With the new jtreg and the patch, normal java tests seem to work fine.

I tried some simple shell tests and they fail. I took a test in langtools as an example:

open/test/langtools/tools/javac/Paths/Class-Path.sh

I invoked it like this:

$ make test TEST=langtools/tools/javac/Paths/Class-Path.sh

It fails with the following:

--------------------------------------------------
TEST: tools/javac/Paths/Class-Path.sh
TEST JDK: d:\erik\jdk-jib-wsl\build\windows-x64\images\jdk

ACTION: shell -- Failed. Execution failed: exit code 127
REASON: User specified action: run shell Class-Path.sh
TIME:   0.125 seconds
messages:
command: shell Class-Path.sh
reason: User specified action: run shell Class-Path.sh
elapsed time (seconds): 0.125
STDOUT:
STDERR:
sh: 0: Can't open /mnt/d:/erik/jdk-jib-wsl/open/test/langtools/tools/javac/Paths/Class-Path.sh

It seems the translation of the path fails. Further down in the jtr file, this looks to be the command line Jtreg is trying to run:

    wsl.exe \\
        sh '/mnt/d:\\/erik/jdk-jib-wsl/open/test/langtools/tools/javac/Paths/Class-Path.sh'

It should be noted that WSL does not understand windows paths like Cygwin does. By default it mounts every Windows drive x in /mnt/x, but this is configurable so should not be assumed. There is a tool, wslpath, similar to cygpath, which can be used to translate. It's also possible to translate environment variables by adding them to WSLENV.

Perhaps using WSLENV would be a reasonable trick here. When running wsl.exe, also set something like this in the env:

JTREG_TEST_PATH=d:/erik/jdk-jib-wsl/open/test/langtools/tools/javac/Paths/Class-Path.sh
WSLENV=$WSLENV:JTREG_TEST_PATH/p

then rewrite the command as:

$ wsl.exe sh $JTREG_TEST_PATH

/Erik

On 2019-01-11 08:51, Jonathan Gibbons wrote:
Erik,

Can you try a test run with the latest jtreg bits, and post the results for me to look at, to see why tests are failing and what, if anything, needs to be done?

-- Jon

On 1/10/19 9:02 PM, Andrew Luo wrote:
I've updated my patch per the latest jtreg changes.  Tested this with the latest code synced from the jtreg repository, seems like shell tests do get run (but don't pass, tests will need to be changed).

Thanks,

-Andrew

-----Original Message-----
From: Jonathan Gibbons <jonathan.gibb...@oracle.com>
Sent: Wednesday, January 9, 2019 1:39 PM
To: Erik Joelsson <erik.joels...@oracle.com>; Andrew Luo <andrewluotechnolog...@outlook.com>; build-dev@openjdk.java.net
Subject: Re: [PATCH] Fixes for running tests on WSL

Erik,

I have pushed a version of Andrew's patch for jtreg into the jtreg repo.

With regard to Andrew's proposed patch for make/RunTests.gmk, the name of the option to use for jtreg is now just "-wsl'.

-- Jon

On 01/07/2019 01:10 AM, Erik Joelsson wrote:
Hello Andrew,

If the patch gets accepted to Jtreg, this looks good. We will need to
wait for Jtreg support before pushing this though.

/Erik

On 2019-01-06 20:34, Andrew Luo wrote:
Hi Everyone,

I've gotten shell tests to run on WSL with some changes to jtreg and
a small change to the OpenJDK gmake files.  Most of them are still
not passing (I believe one or two of them did just work out of the
box after these changes as failures + error count dropped; previous
errors + previous failures < current failures; also "errors" dropped
to zero), as the scripts themselves will need to be changed, however, at least now they can actually run...  My patch with proposed changes
are attached.

I've sent the corresponding jtreg changes to the code-tools-dev
mailing list:
https://mail.openjdk.java.net/pipermail/code-tools-dev/2019-January/0
00464.html

Let me know if you have any feedback/comments.

Thanks,

-Andrew



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