What kind of pitfals exist for the Android APK signing?

Disclaimer: I know the basics of signing an APKs and I have a problem with only one of my projects and only when signing with Microsoft Windows as the OS.

I am building my APK with Maven and sign them with the maven-jarsigner-plugin:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-jarsigner-plugin</artifactId>
    <executions>
      <execution>
        <id>signing</id>
        <goals>
          <goal>sign</goal>
        </goals>
        <phase>package</phase>
        <inherited>true</inherited>
        <configuration>
          <archive>target/${project.build.finalName}.apk</archive>
          <sigfile>CERT</sigfile>
          <keystore>${env.HOME}/.keystore</keystore>
          <storepass>${env.KEY_STOREPASS}</storepass>
          <keypass>${env.KEY_KEYPASS}</keypass>
          <alias>${env.KEY_ALIAS}</alias>
        </configuration>
      </execution>
    </executions>
  </plugin>

Now with one of my projects I get the following error when trying to install and start the application:

1360 KB/s (2057872 bytes in 1.477s)
        pkg: /data/local/tmp/FX-602P-Droid-5.0.0.apk
Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES]

As I said in the first sentence: It works fine when signing with Mac OS X. It only fails when using Windows 7 to sign.

Using --debug when calling Maven I see that the jarsigner is called ok and reports no error:

[INFO]
[INFO] --- maven-jarsigner-plugin:1.2:sign (signing) @ FX-602P-Droid ---
[DEBUG] org.apache.maven.plugins:maven-jarsigner-plugin:jar:1.2:
[DEBUG]    org.apache.maven:maven-plugin-api:jar:2.0.6:compile
[DE