[ImageJ-devel] Maven puzzle

[Curtis Rueden]

Hi Tobi,

> [ERROR]
>
/Users/pietzsch/workspace/BigDataViewer/bigdataviewer-server/src/main/java/bdv/server/BigDataServer.java:[248,46]
> multi-catch statement is not supported in -source 1.5
>
> However, shouldn’t this be already automatically done by setting
scijava.jvm.version=1.7???

Whoa, strange. Especially since it says *1.5*, which is the Maven default...

Furthermore, I cannot reproduce this problem on my system. Building with
Java 6, Java 7 or Java 8 (with JAVA_HOME set accordingly), and with only
the scijava.jvm.version set to 1.7, I am able to build the project
successfully.

I pushed some changes to master, so that we can see whether Jenkins has a
problem with it.

Regards,
Curtis

On Wed, Feb 11, 2015 at 9:58 AM, Tobias Pietzsch <pietzsch at mpi-cbg.de>
wrote:

> Hi,
>
> maybe one of the maven experts can shed some light on the following
> behaviour…
>
> In my bigdataviewer-server pom.xml file (
> https://github.com/bigdataviewer/bigdataviewer-server/blob/84b6724ccdefbdcf787f4896a102bc39d415063a/pom.xml
> )
> I want to set source compatibility to 1.7.
> I tried to do this by specifying
> <properties>
> <scijava.jvm.version>1.7</scijava.jvm.version>
> </properties>
> Strangely, this alone does not solve the problem. mvn on the command line
> says:
> ...
> INFO] -------------------------------------------------------------
> [ERROR] COMPILATION ERROR :
> [INFO] -------------------------------------------------------------
> [ERROR]
> /Users/pietzsch/workspace/BigDataViewer/bigdataviewer-server/src/main/java/bdv/server/BigDataServer.java:[248,46]
> multi-catch statement is not supported in -source 1.5
>   (use -source 7 or higher to enable multi-catch statement)
> …
>
> I can fix it by additionally putting this snippet:
>   <build>
> <plugins>
>         <plugin>
>           <artifactId>maven-compiler-plugin</artifactId>
>           <configuration>
>             <source>1.7</source>
>             <target>1.7</target>
>           </configuration>
>         </plugin>
> </plugins>
> </build>
> into the pom file.
> However, shouldn’t this be already automatically done by setting
> scijava.jvm.version=1.7???
> At least Eclipse seems to think so: I fact, the above snippet to configure
> maven-compiler-plugin I just copied from the “Effective POM” shown in
> Eclipse (for the pom without explicitly having the snippet of course…)
>
> Does anyone have an explanation? Is this a maven bug?
>
> all the best,
> Tobias
>
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>
>
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