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From Stephen Connolly <stephen.alan.conno...@gmail.com>
Subject Re: Multiple JDK Versions
Date Mon, 08 Apr 2013 12:05:34 GMT
http://maven.apache.org/plugins/maven-jar-plugin/examples/manifest-customization.html


On 8 April 2013 12:41, virg g <06virg@gmail.com> wrote:

> Thank you for the reply. As a developer i would be knowing, whether it is
> compiled with which jdk version. Once project's jars/wars released, they
> will be validated/tracked with Build-Jdk of manifest info of jars and wars,
> which is actually showing different than actual. At least how to override
> this property in maven-jar-plugin. What is the property is generates
> Build-JDK
> value? so that atelast i cna use this.
> Thank you. Help is highly appreciated
>
>
> On Mon, Apr 8, 2013 at 4:51 PM, Stephen Connolly <
> stephen.alan.connolly@gmail.com> wrote:
>
> > The manifest is not generated by JavaC but by the tool used to JAR up the
> > files. That would be the Maven Jar Plugin which does not fork the build
> but
> > actually generates the JAR file using the JRE that you launch Maven with.
> >
> > It should not matter whether you use Java 1.2 or Java 1.8 to JAR up the
> > files as the JAR specification has not changed. What should matter to you
> > is the bytecode version, and there are tools such as AnimalSniffer that
> can
> > help you verify that the bytecode version is the version you believe it
> > should be
> >
> >
> > On 8 April 2013 11:41, virg g <06virg@gmail.com> wrote:
> >
> > > Hi,
> > > I want to compile my code with multiple JDK versions 1.4, 1.5, 1.6. I
> am
> > > using maven-compiler-plugin 3.0.
> > > i am changing <executable>${JAVA_1_5_HOME}/bin/javac</executable>
> > parameter
> > > in maven-compiler-plugin and also set source and target to 1.5. But my
> > > default JAVA_HOME is 1.6. The source is getting compiled with 1.5 java
> > > compiler. But if the  the manifest file version always shows Build-Jdk:
> > as
> > > 1.6. It is picking from my JAVA_HOME, Not the the javac version it is
> > > built. I have tried same thing even with maven-toolchains-plugin
>  plugin
> > > also by setting all jdk paths. How to change manifest  info to point to
> > > correct jdk? Do i have to reset JAVA_HOME everytime if i change jdk?
> > >
> >
>

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