package org.apache.maven.artifact.resolver;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.factory.ArtifactFactory;
import org.apache.maven.artifact.metadata.ArtifactMetadataRetrievalException;
<BUG>import org.apache.maven.artifact.metadata.ArtifactMetadataSource;
import org.apache.maven.artifact.repository.ArtifactRepository;</BUG>
import org.apache.maven.artifact.resolver.filter.ArtifactFilter;
<BUG>import java.util.ArrayList;</BUG>
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
<BUG>import java.util.LinkedList;</BUG>
import java.util.List;

package org.apache.maven.artifact.resolver;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.factory.ArtifactFactory;
import org.apache.maven.artifact.metadata.ArtifactMetadataRetrievalException;
import org.apache.maven.artifact.metadata.ArtifactMetadataSource;
import org.apache.maven.artifact.metadata.ResolutionGroup;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.resolver.filter.ArtifactFilter;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
