checkstyle

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

@@ -35,6 +35,9 @@ import java.util.ArrayList;
  */
 public class Launcher {
 
+	private Launcher() {
+	}
+
     /**
      * The Ant Home (installation) Directory property.
      * {@value}

src/main/org/apache/tools/ant/taskdefs/optional/junit/Constants.java

@@ -23,6 +23,9 @@ package org.apache.tools.ant.taskdefs.optional.junit;
  */
 public class Constants {
 
+	private Constants() {
+	}
+
     static final String METHOD_NAMES = "methods=";
     static final String HALT_ON_ERROR = "haltOnError=";
     static final String HALT_ON_FAILURE = "haltOnFailure=";

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

@@ -25,6 +25,9 @@ import java.lang.management.ManagementFactory;
  */
 public class ProcessUtil {
 
+	private ProcessUtil() {
+	}
+
 	/**
      * provide id of the current process
      * @param fallback

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

@@ -1,42 +1,46 @@
-/*
- *  Licensed to the Apache Software Foundation (ASF) under one or more
- *  contributor license agreements.  See the NOTICE file distributed with
- *  this work for additional information regarding copyright ownership.
- *  The ASF licenses this file to You under the Apache License, Version 2.0
- *  (the "License"); you may not use this file except in compliance with
- *  the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- */
-package org.apache.tools.ant.util;
-
-/**
- * Contains one helper method to create a backslash u escape
- *
- * @since Ant 1.8.3
- */
-public class UnicodeUtil {
-	/**
-	 * returns the unicode representation of a char without the leading backslash
-	 * @param ch
-	 * @return unicode representation of a char for property files
-	 */
-   public static StringBuffer EscapeUnicode(char ch) {
-       StringBuffer unicodeBuf = new StringBuffer("u0000");
-       String s = Integer.toHexString(ch);
-       //replace the last 0s by the chars contained in s
-       for (int i = 0; i < s.length(); i++) {
-           unicodeBuf.setCharAt(unicodeBuf.length()
-                                - s.length() + i,
-                                s.charAt(i));
-       }
-       return unicodeBuf;	   
-   }
-}
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+package org.apache.tools.ant.util;
+
+/**
+ * Contains one helper method to create a backslash u escape
+ *
+ * @since Ant 1.8.3
+ */
+public class UnicodeUtil {
+
+	private UnicodeUtil() {
+	}
+
+	/**
+	 * returns the unicode representation of a char without the leading backslash
+	 * @param ch
+	 * @return unicode representation of a char for property files
+	 */
+   public static StringBuffer EscapeUnicode(char ch) {
+       StringBuffer unicodeBuf = new StringBuffer("u0000");
+       String s = Integer.toHexString(ch);
+       //replace the last 0s by the chars contained in s
+       for (int i = 0; i < s.length(); i++) {
+           unicodeBuf.setCharAt(unicodeBuf.length()
+                                - s.length() + i,
+                                s.charAt(i));
+       }
+       return unicodeBuf;	   
+   }
+}

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

@@ -27,6 +27,10 @@ package org.apache.tools.ant.util;
  */
 
 public class XmlConstants {
+
+	private XmlConstants() {
+	}
+
     /** property for location of xml schema */
     public static final String PROPERTY_SCHEMA_LOCATION =
             "http://apache.org/xml/properties/schema/external-schemaLocation";