maven release:prepare skips test-jar

Question

I`m using maven ver. 3 with following plugin to generate separated *.jar file with tests.

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-jar-plugin</artifactId>
    <version>2.4</version>
    <executions>
        <execution>
            <id>core-tests</id>
            <phase>package</phase>
            <goals>
                <goal>test-jar</goal>
            </goals>
        </execution>
    </executions>
</plugin>

and my release plugin configuration looks following:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-release-plugin</artifactId>
    <version>2.0-beta-8</version>
    <configuration>
        <releaseProfiles>release</releaseProfiles>
        <preparationGoals>clean install</preparationGoals>
        <generateReleasePoms>false</generateReleasePoms>
        <scmCommentPrefix>
            release plugin -
        </scmCommentPrefix>
    </configuration>
</plugin>

Generating test classes in separated jar works fine until I use:

maven clean deploy

When I`m doing release my test-jar is not created:

-Dresume=false release:prepare release:perform

Release output:

...
[INFO] [INFO] [compiler:testCompile {execution: default-testCompile}]
[INFO] [INFO] Not compiling test sources
[INFO] [INFO] [surefire:test {execution: default-test}]
[INFO] [INFO] Tests are skipped.
[INFO] [INFO] [jar:jar {execution: default-jar}]
[INFO] [INFO] Building jar: /home/tomcat/hudson_home/jobs/project-core/workspace/target/core-1.2-SNAPSHOT.jar
[INFO] [INFO] [jar:test-jar {execution: core-tests}]
[INFO] [INFO] Skipping packaging of the test-jar
...

I alos tried to use DskipTests but also without success

-Dresume=false -Darguments="-DskipTests" release:prepare release:perform -Prelease

or

-Dresume=false -Darguments="-Dmaven.test.skip.exec=true" release:prepare release:perform -Prelease

How can I generate my test-jar during release? Why it is skipped?

EDIT

I found that this problem occures only when I have active release profile. I can`t find this profile in any parent pom. Where it comes from? From maven-release-plugin definitions?

RESOLVED

I found profile release on hudsons .m2/settings.xml:

<profile>
    <id>release</id>
    <activation>
        <activeByDefault>false</activeByDefault>
    </activation>
    <properties>
        <username>*****</username>
        <password>*****</password>
        <skipTests>true</skipTests>
        <maven.test.skip>true</maven.test.skip>
    </properties>
</profile>

I just needed to remove maven.test.skip and everything works fine now.