in src/main/java/org/apache/maven/plugins/jarsigner/AbstractJarsignerMojo.java [384:404]
private boolean processArtifact(final Artifact artifact) throws MojoExecutionException {
if (artifact == null) {
throw new NullPointerException("artifact");
}
boolean processed = false;
if (isZipFile(artifact)) {
processArchive(artifact.getFile());
processed = true;
} else {
if (this.verbose) {
getLog().info(getMessage("unsupported", artifact));
} else if (getLog().isDebugEnabled()) {
getLog().debug(getMessage("unsupported", artifact));
}
}
return processed;
}