Tidy up the code

src/main/org/apache/tools/ant/DirectoryScanner.java

@@ -613,6 +613,7 @@ public class DirectoryScanner
      *
      * @since Ant 1.6
      */
+    @SuppressWarnings("deprecated")
     public static void resetDefaultExcludes() {
         synchronized (defaultExcludes) {
             defaultExcludes.clear();

src/main/org/apache/tools/ant/filters/ConcatFilter.java

@@ -192,13 +192,11 @@ public final class ConcatFilter extends BaseParamFilterReader
         final Parameter[] params = getParameters();
         if (params != null) {
             for (Parameter param : params) {
-                if ("prepend".equals(param.getName())) {
+                final String paramName = param.getName();
+                if ("prepend".equals(paramName)) {
                     setPrepend(new File(param.getValue()));
-                    continue;
-                }
-                if ("append".equals(param.getName())) {
+                } else if ("append".equals(paramName)) {
                     setAppend(new File(param.getValue()));
-                    continue;
                 }
             }
         }

src/main/org/apache/tools/ant/filters/HeadFilter.java

@@ -188,13 +188,11 @@ public final class HeadFilter extends BaseParamFilterReader
         Parameter[] params = getParameters();
         if (params != null) {
             for (Parameter param : params) {
-                if (LINES_KEY.equals(param.getName())) {
+                final String paramName = param.getName();
+                if (LINES_KEY.equals(paramName)) {
                     lines = Long.parseLong(param.getValue());
-                    continue;
-                }
-                if (SKIP_KEY.equals(param.getName())) {
+                } else if (SKIP_KEY.equals(paramName)) {
                     skip = Long.parseLong(param.getValue());
-                    continue;
                 }
             }
         }

src/main/org/apache/tools/ant/filters/SortFilter.java

@@ -318,16 +318,13 @@ public final class SortFilter extends BaseParamFilterReader
                 final String paramName = param.getName();
                 if (REVERSE_KEY.equals(paramName)) {
                     setReverse(Boolean.valueOf(param.getValue()));
-                    continue;
-                }
-                if (COMPARATOR_KEY.equals(paramName)) {
+                } else if (COMPARATOR_KEY.equals(paramName)) {
                     try {
                         String className = param.getValue();
                         @SuppressWarnings("unchecked")
                         final Comparator<? super String> comparatorInstance
                                 = (Comparator<? super String>) (Class.forName(className).newInstance());
                         setComparator(comparatorInstance);
-                        continue;
                     } catch (InstantiationException | ClassNotFoundException | IllegalAccessException e) {
                         /*
                          * IAE probably means an inner non-static class, that case is not considered

src/main/org/apache/tools/ant/filters/TailFilter.java

@@ -188,13 +188,11 @@ public final class TailFilter extends BaseParamFilterReader
         Parameter[] params = getParameters();
         if (params != null) {
             for (Parameter param : params) {
-                if (LINES_KEY.equals(param.getName())) {
+                final String paramName = param.getName();
+                if (LINES_KEY.equals(paramName)) {
                     setLines(Long.parseLong(param.getValue()));
-                    continue;
-                }
-                if (SKIP_KEY.equals(param.getName())) {
+                } else if (SKIP_KEY.equals(paramName)) {
                     skip = Long.parseLong(param.getValue());
-                    continue;
                 }
             }
         }

src/main/org/apache/tools/ant/filters/util/JavaClassHelper.java

@@ -23,7 +23,6 @@ import java.io.IOException;
 import org.apache.bcel.classfile.ClassParser;
 import org.apache.bcel.classfile.ConstantValue;
 import org.apache.bcel.classfile.Field;
-import org.apache.bcel.classfile.JavaClass;
 
 // CheckStyle:HideUtilityClassConstructorCheck OFF - bc
 /**

src/main/org/apache/tools/ant/launch/Locator.java

@@ -17,6 +17,8 @@
  */
 package org.apache.tools.ant.launch;
 
+import org.apache.tools.ant.util.FileUtils;
+
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.UnsupportedEncodingException;
@@ -472,8 +474,9 @@ public final class Locator {
      */
     public static URL[] getLocationURLs(File location,
                                         final String... extensions)
-         throws MalformedURLException {
+            throws MalformedURLException {
         URL[] urls = new URL[0];
+        FileUtils utils = FileUtils.getFileUtils();
 
         if (!location.exists()) {
             return urls;
@@ -484,7 +487,7 @@ public final class Locator {
             String littlePath = path.toLowerCase(Locale.ENGLISH);
             for (String extension : extensions) {
                 if (littlePath.endsWith(extension)) {
-                    urls[0] = fileToURL(location);
+                    urls[0] = utils.getFileURL(location);
                     break;
                 }
             }
@@ -496,7 +499,7 @@ public final class Locator {
         });
         urls = new URL[matches.length];
         for (int i = 0; i < matches.length; ++i) {
-            urls[i] = fileToURL(matches[i]);
+            urls[i] = utils.getFileURL(matches[i]);
         }
         return urls;
     }

src/main/org/apache/tools/ant/taskdefs/Expand.java

@@ -27,7 +27,6 @@ import java.nio.file.Files;
 import java.util.Date;
 import java.util.Enumeration;
 import java.util.HashSet;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
 import java.util.Vector;

src/main/org/apache/tools/ant/taskdefs/Get.java

@@ -180,13 +180,9 @@ public class Get extends Task {
     public boolean doGet(final int logLevel, final DownloadProgress progress)
             throws IOException {
         checkAttributes();
-        for (final Resource r : sources) {
-            final URLProvider up = r.as(URLProvider.class);
-            final URL source = up.getURL();
-            return doGet(source, destination, logLevel, progress);
-        }
-        /*NOTREACHED*/
-        return false;
+        return doGet(sources.iterator().next().as(URLProvider.class).getURL(),
+                destination, logLevel, progress);
+
     }
 
     /**

src/main/org/apache/tools/ant/taskdefs/UpToDate.java

@@ -19,7 +19,6 @@
 package org.apache.tools.ant.taskdefs;
 
 import java.io.File;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Vector;
 

src/main/org/apache/tools/ant/taskdefs/optional/RenameExtensions.java

@@ -43,6 +43,7 @@ import org.apache.tools.ant.types.Mapper;
  * @deprecated since 1.5.x.
  *             Use <move> instead
  */
+@Deprecated
 public class RenameExtensions extends MatchingTask {
 
     private String fromExtension = "";

src/main/org/apache/tools/ant/taskdefs/optional/jdepend/JDependTask.java

@@ -389,6 +389,7 @@ public class JDependTask extends Task {
      * @exception BuildException if an error occurs
      */
     @Override
+    @SuppressWarnings("deprecated")
     public void execute() throws BuildException {
 
         CommandlineJava commandline = new CommandlineJava();
@@ -627,6 +628,7 @@ public class JDependTask extends Task {
         return new ExecuteWatchdog(getTimeout());
     }
 
+    @SuppressWarnings("deprecated")
     private Optional<Path> getWorkingPath() {
         Optional<Path> result = Optional.ofNullable(getClassespath());
         if (result.isPresent()) {

src/main/org/apache/tools/ant/taskdefs/optional/junitlauncher/AbstractJUnitResultFormatter.java

@@ -42,7 +42,6 @@ abstract class AbstractJUnitResultFormatter implements TestResultFormatter {
             this.sysOutStore.store(data);
         } catch (IOException e) {
             handleException(e);
-            return;
         }
     }
 
@@ -55,7 +54,6 @@ abstract class AbstractJUnitResultFormatter implements TestResultFormatter {
             this.sysErrStore.store(data);
         } catch (IOException e) {
             handleException(e);
-            return;
         }
     }
 

src/main/org/apache/tools/ant/taskdefs/optional/junitlauncher/JUnitLauncherTask.java

@@ -394,7 +394,6 @@ public class JUnitLauncherTask extends Task {
             } catch (IOException e) {
                 task.log("Failed while streaming " + (this.streamType == StreamType.SYS_OUT ? "sysout" : "syserr") + " data",
                         e, Project.MSG_INFO);
-                return;
             } finally {
                 streamContentDeliver.stop = true;
                 // just "wakeup" the delivery thread, to take into account
@@ -500,7 +499,6 @@ public class JUnitLauncherTask extends Task {
                     closeAndWait(sysErr);
                 } catch (InterruptedException e) {
                     Thread.currentThread().interrupt();
-                    return;
                 }
             }
         }

src/main/org/apache/tools/ant/taskdefs/optional/junitlauncher/LegacyPlainResultFormatter.java

@@ -99,7 +99,6 @@ class LegacyPlainResultFormatter extends AbstractJUnitResultFormatter implements
             }
         } catch (IOException ioe) {
             handleException(ioe);
-            return;
         }
     }
 

src/main/org/apache/tools/ant/taskdefs/optional/junitlauncher/LegacyXmlResultFormatter.java

@@ -61,7 +61,6 @@ class LegacyXmlResultFormatter extends AbstractJUnitResultFormatter implements T
             new XMLReportWriter().write();
         } catch (IOException | XMLStreamException e) {
             handleException(e);
-            return;
         }
     }
 

src/main/org/apache/tools/ant/types/Commandline.java

@@ -30,7 +30,6 @@ import java.util.stream.Stream;
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.ProjectComponent;
 import org.apache.tools.ant.taskdefs.condition.Os;
-import org.apache.tools.ant.util.StringUtils;
 
 /**
  * Commandline objects help handling command lines specifying processes to

src/main/org/apache/tools/ant/types/CommandlineJava.java

@@ -18,7 +18,6 @@
 
 package org.apache.tools.ant.types;
 
-import java.util.Enumeration;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.ListIterator;

src/main/org/apache/tools/ant/util/JavaEnvUtils.java

@@ -279,6 +279,7 @@ public final class JavaEnvUtils {
      * @return true if the version of Java is the same as the given version.
      * @since Ant 1.5
      */
+    @SuppressWarnings("deprecated")
     public static boolean isJavaVersion(String version) {
         return javaVersion.equals(version)
             || (javaVersion.equals(JAVA_9) && JAVA_1_9.equals(version));

src/tests/junit/org/apache/tools/ant/util/JavaEnvUtilsTest.java

@@ -124,6 +124,7 @@ public class JavaEnvUtilsTest {
     }
 
     @Test
+    @SuppressWarnings("deprecated")
     public void isJavaVersionSupportsBothVersionsOfJava9() {
         assumeTrue(JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_9));
         assertTrue("JAVA_1_9 is not considered equal to JAVA_9",
@@ -131,6 +132,7 @@ public class JavaEnvUtilsTest {
     }
 
     @Test
+    @SuppressWarnings("deprecated")
     public void java10IsDetectedProperly() {
         assumeTrue("10".equals(System.getProperty("java.specification.version")));
         assertEquals("10", JavaEnvUtils.getJavaVersion());