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Posted to issues@maven.apache.org by "Benjamin Bentmann (JIRA)" <ji...@codehaus.org> on 2010/08/14 14:30:33 UTC
[jira] Updated: (MNG-4517) Support Maven 2.0.x style jdk activation
in Maven 2.2.x
[ http://jira.codehaus.org/browse/MNG-4517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benjamin Bentmann updated MNG-4517:
-----------------------------------
Attachment: pom.xml
The attached demo POM uses Maven 2.0.x style JDK activation and when run with Maven 2.2.1 yields:
{noformat}
>mvn validate -V
Apache Maven 2.2.1 (r801777; 2009-08-06 21:16:01+0200)
Java version: 1.5.0_21
Java home: D:\java\jdk-1.5\jre
Default locale: de_DE, platform encoding: Cp1252
OS name: "windows 7" version: "6.1" arch: "x86" Family: "windows"
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building MNG-4517 - PASSED
[INFO] task-segment: [validate]
{noformat}
i.e. the profile got properly activated.
As a side note, the equivalent of {{<jdk>1.5</jdk>}} using a range is {{<jdk>[1.5,1.6)</jdk>}}, not {{<jdk>[1.5.)</jdk>}}.
> Support Maven 2.0.x style jdk activation in Maven 2.2.x
> -------------------------------------------------------
>
> Key: MNG-4517
> URL: http://jira.codehaus.org/browse/MNG-4517
> Project: Maven 2 & 3
> Issue Type: Improvement
> Components: Profiles
> Affects Versions: 2.2.1
> Environment: When someone wants to support users using Maven 2.0.x and Maven 2.2.x at the same time
> Reporter: Claus Ibsen
> Attachments: pom.xml
>
>
> At Apache Camel we have users using different version of Maven.
> Many still uses Maven 2.0.9 and which is also used by a lot of CI servers and whatnot.
> Upgrading to Maven 2.2.1 is not always something you just do.
> As camel-core uses JAXB it has dependency on those .jars but they are only activated if the JDK is 1.5 as they are provided out of the box with JDK 1.6+.
> To facilitate this we have this in the pom.xml
> {code:xml}
> <profile>
> <id>jdk1.5-maven-2.0.x</id>
> <activation>
> <!-- for maven 2.0.x syntax -->
> <jdk>1.5</jdk>
> </activation>
> <dependencies>
> <dependency>
> <groupId>javax.xml.bind</groupId>
> <artifactId>jaxb-api</artifactId>
> </dependency>
> <dependency>
> <groupId>com.sun.xml.bind</groupId>
> <artifactId>jaxb-impl</artifactId>
> </dependency>
> </dependencies>
> </profile>
> {code}
> As you can see its a profile for using maven 2.0.x where the <jdk> tag uses the syntax it understands which is plain *1.5*.
> Now Maven 2.2.x breaks this as it does not support the plain syntax <jdk> syntax, so you cannot have the same profile for both Maven 2.0.x and 2.2.x.
> That is why we have added a 2nd profile for Maven 2.2.x
> {code:xml}
> <profile>
> <id>jdk1.5-maven-2.2.x</id>
> <activation>
> <!-- for maven 2.2.x syntax-->
> <jdk>[1.5,)</jdk>
> </activation>
> <dependencies>
> <dependency>
> <groupId>javax.xml.bind</groupId>
> <artifactId>jaxb-api</artifactId>
> </dependency>
> <dependency>
> <groupId>com.sun.xml.bind</groupId>
> <artifactId>jaxb-impl</artifactId>
> </dependency>
> </dependencies>
> </profile>
> {code}
> As you can see the <jdk> syntax is different as we need to type *[1.5,)*.
> What we propose is that Maven 2.2.x can understand the plain and simple syntax from 2.0.x which would be *1.5*.
> What it then allows us is to have a single profile and letting it be the default profile (without any id).
> Then people can much easier work with it without having to specify a profile id.
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