[M2] Proposal to add Inheritent property in pom.xml

[dan tran]

Hello all,

 I would like to add 

  <properties>
     <key1>value1</key1>
     <keyX>valueX</keyX>
  <properties>

I can see the following benefits:

   - Using single version property at the root pom to handle all sub project
     parent and dependencies versions

     For example:

         <parent>
            <groupId>parentgroupid<groupId>
            <artifactId>parentid</artifactId>
            <version>${my.version}</version>
         </parent>

         <artifactId>myid</artifactId>

         <dependencies>
            <dependency>
              <groupId>parentgroupid<groupId>
              <artifactId>parentid</artifactId>
              <version>${my.version}</version>
            </dependency>
         </dependencies>

         This will help tremendously interm usabitlity where can just modify my
         root pom and cut a new release without going to every sub project
         to change the version numbers and deal with SCM.

      - Second benefit is to have common string replacement in build
configuration.
        For example in mutlitplatform native build projects, I can
have the parent
        pom to hold some common property in include paths

       parent
           pom.xml
           windows-x86
              pom.xml
           aix-ppc
              pom.xml
           linux-x86
              pom.xml
           hpux-ia64
              pom.xml
           hpux-parisc
              pom.xml
           solaris-sparc
              pom.xml

     In parent pom i can have

           <properties>
              <otherprojectincludepath>
                    ${basedir}/../../licencemanager/src/main/h
              </otherprojectincludepath>
               many more....
           </properties>

      this way each platfrom specific project can reuse the parent property
        
      Currently I have to repeat many paths in each platforms which 
      become annoyed and hard to maintain

Other plugins can benefit this as well. For example multiple plugins can reused
${finalName} expression in their builds configuration

Is it possible in term of M2 architecture?

Thanks 

-Dan

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