Sort imports

src/tests/junit/org/apache/tools/ant/taskdefs/ExecuteWatchdogTest.java

@@ -23,9 +23,9 @@ import java.io.InputStreamReader;
 import java.util.stream.Collectors;
 
 import org.apache.tools.ant.util.JavaEnvUtils;
+import org.junit.AssumptionViolatedException;
 import org.junit.Before;
 import org.junit.Test;
-import org.junit.AssumptionViolatedException;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;

src/tests/junit/org/apache/tools/ant/taskdefs/JavaTest.java

@@ -34,10 +34,10 @@ import org.apache.tools.ant.BuildFileRule;
 import org.apache.tools.ant.input.DefaultInputHandler;
 import org.apache.tools.ant.util.FileUtils;
 import org.apache.tools.ant.util.TeeOutputStream;
+import org.junit.AssumptionViolatedException;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
-import org.junit.AssumptionViolatedException;
 import org.junit.rules.ExpectedException;
 
 import static org.hamcrest.Matchers.containsString;

src/tests/junit/org/apache/tools/mail/MailMessageTest.java

@@ -34,9 +34,9 @@ import java.net.Socket;
 import java.util.Vector;
 
 import org.apache.tools.ant.BuildException;
+import org.junit.AssumptionViolatedException;
 import org.junit.Before;
 import org.junit.Test;
-import org.junit.AssumptionViolatedException;
 
 /**
  * JUnit testcases for org.apache.tools.mail.MailMessage.