using "Implementation-Version" in MANIFEST.MF to version war, jar and ear files

[thebad1]

Hi,

We are currently going through the process of asking our java
developers and external vendors to stick to a versioning convention
for the various war, jar and ear files that are deployed.

The idea has been suggested that we should have the vendor/developer
ship a "release" file with version information in the root of the
archive file. However I am thinking that there is a standard
versioning specification, as most published libraries include a
"Implementation-Version" attribute in the MANIFEST.MF. But I can't
seem to find a specification or reference for it. I guess that I might
just be searching for a topic for which there is a lot of competition
for keywords... :-(

If Anyone has any ideas on where I can find information on this, I
would be grateful.

Thanks,

T.

 

[Daniel Dyer]

Hi,

We are currently going through the process of asking our java
developers and external vendors to stick to a versioning convention
for the various war, jar and ear files that are deployed.

The idea has been suggested that we should have the vendor/developer
ship a "release" file with version information in the root of the
archive file. However I am thinking that there is a standard
versioning specification, as most published libraries include a
"Implementation-Version" attribute in the MANIFEST.MF. But I can't
seem to find a specification or reference for it. I guess that I might
just be searching for a topic for which there is a lot of competition
for keywords... :-(

<http://java.sun.com/j2se/1.5.0/docs/guide/jar/jar.html#Manifest
Specification>

Dan

 

[Thomas Fritsch]

However I am thinking that there is a standard
versioning specification, as most published libraries include a
"Implementation-Version" attribute in the MANIFEST.MF. But I can't
seem to find a specification or reference for it.

It is in the "JAR File Specification" (paragraph "Main Attributes")
http://java.sun.com/j2se/1.5.0/docs/guide/jar/jar.html#Main Attributes

 

[thebad1]

It is in the "JAR File Specification" (paragraph "Main Attributes")http://java.sun.com/j2se/1.5.0/docs/guide/jar/jar.html#Main Attributes

Thanks for both of those rapid answers... However I am still slightly
confused by the document. Am I right in saying that "Implementation-
Version" corresponds to 1.0, for web application packaged in a war
file for release 1.0 of a web application? And the same for say, an
EAR archive?