Remove wildcard imports in tests

plugins/sonar-xoo-plugin/src/test/java/org/sonar/xoo/rule/AnalysisErrorSensorTest.java

@@ -26,7 +26,6 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 
-import static org.assertj.core.api.Assertions.*;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -37,6 +36,8 @@ import org.sonar.api.batch.fs.internal.TestInputFileBuilder;
 import org.sonar.api.batch.sensor.error.AnalysisError;
 import org.sonar.api.batch.sensor.internal.SensorContextTester;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 public class AnalysisErrorSensorTest {
   @Rule
   public TemporaryFolder temp = new TemporaryFolder();

plugins/sonar-xoo-plugin/src/test/java/org/sonar/xoo/scm/XooIgnoreCommandTest.java

@@ -27,7 +27,7 @@ import org.junit.Test;
 import org.junit.rules.ExpectedException;
 import org.junit.rules.TemporaryFolder;
 
-import static org.assertj.core.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.sonar.xoo.scm.XooIgnoreCommand.IGNORE_FILE_EXTENSION;
 
 public class XooIgnoreCommandTest {

sonar-scanner-engine/src/test/java/org/sonar/scanner/scan/branch/ProjectBranchesTest.java

@@ -29,7 +29,6 @@ import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
-import static org.assertj.core.api.Assertions.*;
 import static org.assertj.core.api.Assertions.assertThat;
 
 @RunWith(DataProviderRunner.class)