Jinmei, thank you for that. Whilst I believe supporting existing users custom 
formats sound nice, it does complicate the whole process too much.
As can be seen from the example code that I posted, the test is already 
retrieving the wrong artifact name, as there is no way to determine what the 
correct format should be if there are many.

I think it is reasonable to standardize on a format. Document said format and 
then apply the pattern consistently. Then adding that to the notes.

It even simplifies the logic where we have to deal with non-versioned jars and 
we then append the ".v + {version}" to make sure we can handle versions, etc... 
As this can now be adapted to "abc.jar" being converted to "abc-1.0.0.jar". 
Thus being able to add a version to an unversioned jar. In addition a standard 
way to determine a version,etc...

As I said, unfortunately the is no simple way to deal with this transition and 
transitioning to a standard by ripping off the bandaid in one go is sometime 
preferable.

--Udo

On 10/8/20, 9:25 AM, "Jinmei Liao" <jil...@vmware.com> wrote:

    Wait, that reason doesn't make much sense either. Dale/Darrel, do you 
remember why we did what we did?

    On 10/7/20, 3:12 PM, "Jinmei Liao" <jil...@vmware.com> wrote:

        I believe we did this for a reason, can't remember exactly what though. 
Most probably drive by user's existing filenames. I believe we are probably 
concerned that user's jar name might contain "_" or "-" themselves, like 
common-logging.jar etc. So we had to resort to finding the first "." followed 
by a digit to determine where the version pattern begins.

        On 10/7/20, 1:44 PM, "Udo Kohlmeyer" <u...@vmware.com> wrote:

            Hi there Geode Dev List,

            Whilst doing work on 
GEODE-8466<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fissues.apache.org%2Fjira%2Fbrowse%2FGEODE-8466&amp;data=02%7C01%7Cudo%40vmware.com%7C1393e334db5440233f5108d86b0fd4c6%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637377063031142340&amp;sdata=tTX%2FDQcFdz8U%2BbMgtqgnVAC2cA6J669NP8nqF5b2kyg%3D&amp;reserved=0>
 and looking at the functionality that the 
ClassPathLoader.java<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fgeode%2Fblob%2Fdevelop%2Fgeode-core%2Fsrc%2Fmain%2Fjava%2Forg%2Fapache%2Fgeode%2Finternal%2FClassPathLoader.java&amp;data=02%7C01%7Cudo%40vmware.com%7C1393e334db5440233f5108d86b0fd4c6%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637377063031142340&amp;sdata=6lfD1hfG%2BMpshoP3zgykVlPYi6rcP5OWAHjDBxv2jo8%3D&amp;reserved=0>,
 
JarDeployer.java<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fgeode%2Fblob%2Fdevelop%2Fgeode-core%2Fsrc%2Fmain%2Fjava%2Forg%2Fapache%2Fgeode%2Finternal%2FJarDeployer.java&amp;data=02%7C01%7Cudo%40vmware.com%7C1393e334db5440233f5108d86b0fd4c6%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637377063031142340&amp;sdata=jjf9KSmHTQSJh1DMEbG8fDcKpnVDldP8ZBzH5Tz1a%2Bc%3D&amp;reserved=0>
 and 
DeployedJar.java<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fgeode%2Fblob%2Fdevelop%2Fgeode-core%2Fsrc%2Fmain%2Fjava%2Forg%2Fapache%2Fgeode%2Finternal%2FDeployedJar.java&amp;data=02%7C01%7Cudo%40vmware.com%7C1393e334db5440233f5108d86b0fd4c6%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637377063031152342&amp;sdata=nQU2zcCFbWpiGhUwQEI89lYz5jbp4VjPkowRqy%2Fvpa4%3D&amp;reserved=0>
 provide around the “Deploy Jar” functionality, we came across some interesting 
“supported” filename patterns.

            According to the 
JarDeployerFileTest.java<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fgeode%2Fblob%2Fdevelop%2Fgeode-core%2Fsrc%2FintegrationTest%2Fjava%2Forg%2Fapache%2Fgeode%2Finternal%2FJarDeployerFileTest.java&amp;data=02%7C01%7Cudo%40vmware.com%7C1393e334db5440233f5108d86b0fd4c6%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637377063031152342&amp;sdata=SD6wNi7o6Fk5mPQAa%2B141u8MkK%2Bh1j6d2sgdnzjfkMI%3D&amp;reserved=0>
 the “supported” formats are as follows:

            assertThat(JarDeployer.getArtifactId("abc.jar")).isEqualTo("abc");
            assertThat(JarDeployer.getArtifactId("abc-1.jar")).isEqualTo("abc");
            
assertThat(JarDeployer.getArtifactId("ab.c.1.jar")).isEqualTo("ab.c");
            
assertThat(JarDeployer.getArtifactId("abc.v1.jar")).isEqualTo("abc.v1");
            
assertThat(JarDeployer.getArtifactId("abc-1.0.snapshot.jar")).isEqualTo("abc");
            
assertThat(JarDeployer.getArtifactId("abc-1.0.v1.jar")).isEqualTo("abc");
            
assertThat(JarDeployer.getArtifactId("spark-network-common_2.11-2.3.1.jar"))
                .isEqualTo("spark-network-common_2");
            Which don’t make any sense. As the generally accepted norm for a 
version jar file would be: “<artifact name>[ - <major> . <minor> . <patch> - 
<Release Tag> ] .jar”. (note the syntax in red)

            I want to suggest that we DISCONTINUE supporting all jar name 
formats other than the one mentioned above IMMEDIATELY. As the supported name 
format is just “funky” but also wrong and can lead to misclassification of the 
artifact name…. as some of you with a keen eye would have spotted already 😉

            For those who did not spot the mistake…  
“spark-network-common_2.11-2.3.1.jar” is incorrectly classified and has the 
WRONG artifact name. As “spark-network-common_2.11” is the correct artifact 
name NOT “spark-network-common_2”!

            I would like to introduce this change with 
GEODE-8466<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fissues.apache.org%2Fjira%2Fbrowse%2FGEODE-8466&amp;data=02%7C01%7Cudo%40vmware.com%7C1393e334db5440233f5108d86b0fd4c6%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637377063031152342&amp;sdata=kBrNxX9m%2BkOVheEcxSlMZq1%2F1RJQut8EgbYUhdo5WZQ%3D&amp;reserved=0>.
 This would be a “breaking” change, but we should change this sooner than 
later. There is no transition ability here, as it would be too hard to have 
Geode support both, as there is no simple way for the system to decide if the 
name conforms to the “correct” format or not.

            DISCUSS!!!

            --Udo




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