fix sonarqube issues

Author: Claudenw

apache-rat-core/src/test/java/org/apache/rat/ReportConfigurationTest.java

@@ -72,7 +72,6 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
-import org.mockito.Mockito;
 
 public class ReportConfigurationTest {
 
@@ -658,7 +657,7 @@ void logLicenseCollisionTest() {
     }
 
     @Test
-    public void licenseDuplicateOptionsTest() {
+    void licenseDuplicateOptionsTest() {
         // setup
         ILicenseFamily family = ILicenseFamily.builder().setLicenseFamilyCategory("CAT").setLicenseFamilyName("family name").build();
         IHeaderMatcher matcher = mock(IHeaderMatcher.class);

apache-rat-core/src/test/java/org/apache/rat/ReporterTest.java

@@ -51,11 +51,9 @@
 import org.apache.rat.api.Document.Type;
 import org.apache.rat.api.RatException;
 import org.apache.rat.commandline.ArgumentContext;
-import org.apache.rat.commandline.StyleSheets;
 import org.apache.rat.document.FileDocument;
 import org.apache.rat.document.DocumentName;
 import org.apache.rat.license.ILicenseFamily;
-import org.apache.rat.license.LicenseSetFactory;
 import org.apache.rat.report.claim.ClaimStatistic;
 import org.apache.rat.test.utils.Resources;
 import org.apache.rat.testhelpers.TextUtils;