Re: How to apply maven build system (Was: How to use Debian packaged freehep instead of upstream provided freehep.jar)

[Olivier Sallou <olivier.sallou@irisa.fr>]

Hi,
the plugin must be under other tags.
Example:
    <build>
        <plugins>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.5</source>
                    <target>1.5</target>
                </configuration>
            </plugin>


So your pom should look like:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>patristic</groupId>
    <artifactId>patristic</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <name>Patristic</name>

    <build>
        <plugins>

    <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.1</version>
            <configuration>
                    <source>1.5</source>
                    <target>1.5</target>
            </configuration>
    </plugin>

        </plugins>
    </build>


    <dependencies>
        <dependency>
            <groupId>org.freehep</groupId>
            <artifactId>freehep-graphics2d</artifactId>
            <version>2.1.3</version>
        </dependency>
    </dependencies>
</project>

Olivier

Le 2/18/11 8:55 AM, Andreas Tille a écrit :

Hi,

On Thu, Feb 17, 2011 at 07:49:52PM +0100, Thomas Zeeman wrote:

It means the application is using two features of java (annotations and generics to be precise) which are only supported in Java 5+. To fix this you need to set the source property of the maven-compiler-plugin in the build section of the pom to 1.5. It might also be necessary to set the target to 1.5 in this case. I.e like this:

                       <plugin>
                               <groupId>org.apache.maven.plugins</groupId>
                                <artifactId>maven-compiler-plugin</artifactId>
                                <version>2.1</version>
                                <configuration>
                                        <source>1.5</source>
                                        <target>1.5</target>
                                </configuration>
                        </plugin>

Please excuse for my ignorance but it seems that I need more detailed
advise.  I applied this to the previosely suggested pom.xml (see
attachment) but now I get

$ $ mvn package
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).


Project ID: unknown
POM Location: /home/tillea/debian-maintain/todo/0_debian-med_todo/0phylogeny/patristic/maven/patristic-20100817/pom.xml

Reason: Parse error reading POM. Reason: Unrecognised tag: 'plugin' (position: START_TAG seen ...</name>\n\n    <plugin>... @10:13)  for project unknown at /home/tillea/debian-maintain/todo/0_debian-med_todo/0phylogeny/patristic/maven/patristic-20100817/pom.xml

Or update to a more recent version of maven or the compiler plugin. They've updated the default for source and target to 1.5 for some time now.

I also have no idea how to follow this hint:

$ apt-cache policy maven2
maven2:
  Installiert: 2.2.1-5
  Kandidat:    2.2.1-5
  Versionstabelle:
 *** 2.2.1-5 0
        501 http://debian.tu-bs.de/debian/ testing/main amd64 Packages
         50 http://ftp.de.debian.org/debian/ unstable/main amd64 Packages
        100 /var/lib/dpkg/status

What more recent version do you mean?
 
Thanks for your patience

      Andreas.

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