eclipse:eclipse should specify Execution Environment instead of JRE_CONTAINER
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Key: MECLIPSE-658
URL: http://jira.codehaus.org/browse/MECLIPSE-658
Project: Maven 2.x Eclipse Plugin
Issue Type: Improvement
Components: Core : Dependencies resolution and build path (.classpath)
Affects Versions: 2.8
Environment: JDK 1.6 and 1.4.2, Maven 2.2.1
Reporter: Guillaume Wallet
I was migrating a software source code from handcoded Ant to Maven.
The project is a Java 1.4 WebApp.
In order to compile the application, I use the Java 1.4.2 compiler, configuring
maven-compiler-plugin as needed, it works fine for Maven.
When I import the project into Eclipse after using eclipse:eclipse, the
compiler level is good (1.4) but the runtime library use is the default JRE
used in the Workspace : JRE 1.6.0, the bad is that it permit to produce 1.4
bytecode accessing classes and/or methods that appears in later release of the
Java Runtime.
In order to compile/execute the project against the 1.4 JRE, I found the
Execution Environment which let Eclipse choose the appropriate Runtime and
voila! My project compiling against JRE 1.4 runtime (previously added in
Eclipse preferences screens)
For the moment, I use the <classpathContainers> configuration to tune the
maven-eclipse-plugin but I think that it should look against the compiler level
(like it looks for code character encoding) to choose the appropriate Runtime
Environment and by default the default installed JRE.
The generated classpath contains :
org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.4
instead of :
org.eclipse.jdt.launching.JRE_CONTAINER
I can later submit a patch including unit test if you do not have time to
investigate.
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