in src/main/java/org/apache/maven/resolver/internal/ant/types/RemoteRepository.java [217:223]
protected static void checkChecksums(String checksums) {
if (!RepositoryPolicy.CHECKSUM_POLICY_FAIL.equals(checksums)
&& !RepositoryPolicy.CHECKSUM_POLICY_WARN.equals(checksums)
&& !RepositoryPolicy.CHECKSUM_POLICY_IGNORE.equals(checksums)) {
throw new BuildException("'" + checksums + "' is not a permitted checksum policy");
}
}