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http://jira.codehaus.org/browse/MCOMPILER-80?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=208697#action_208697
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redstun commented on MCOMPILER-80:
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IMHO, for this, Ant is doing the right thing, the warning is actually also what
Maven needs to have, to allow the user use the platform default source/target
levels, but warn the user that it's always necessary to specify the expected
source/target levels.
Maven, as a tool/library, should warn the user to explicitly set source/target
levels, instead of doing it FOR the user, because whatever it does for the
user, will always be wrong in a different context.
Another point is that, the user is responsible for which version of Java (and
the source/target levels) to use. The Java version, as part of the platform
information, should always be reported by the user, not decided by Maven to
have a reproducible build.
Thanks
> Change default source level to 1.5
> ----------------------------------
>
> Key: MCOMPILER-80
> URL: http://jira.codehaus.org/browse/MCOMPILER-80
> Project: Maven 2.x Compiler Plugin
> Issue Type: Improvement
> Reporter: Grzegorz Borkowski
> Priority: Minor
>
> Deafult source level setting for Maven compiler plugin is 1.3, as far as I
> remember. This makes no sense. 1.3 is used at this moment only in legacy
> applications. Probability of porting such legacy application to Maven 2 is
> very small. I was working with such applications - none of them used Maven.
> In fact, I don't know any application using Maven, which requires level 1.3.
> On the other hand, Maven is used exensively in new applications. Most of them
> use Java 5 features (annotations, generics...). All new applications I create
> use Maven 2 and Java 5. Every time I setup such application it makes me crazy
> that I get errors on my generics and annoations, and I have to setup manually
> the source level to 1.5. Come on, we have year 2008, not 2000! Java 5 is here
> for several years already. So why Maven compiler plugin does not use the most
> reasonable default approach, instead it still assumes we are in 2000 year? If
> someone wants to use old java version, than he can change the source level.
> By default should be 1.5.
> The default setting can be changed in never wersion of maven compiler plugin.
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