fix javadoc (#545)

src/main/java/org/apache/commons/lang3/SystemUtils.java

@@ -669,7 +669,7 @@ public class SystemUtils {
      * sync with that System property.
      * </p>
      *
-     * @deprecated Use {@link System#lineSeparator} instead, since it does not require a privilege check.
+     * @deprecated Use {@link System#lineSeparator()} instead, since it does not require a privilege check.
      * @since Java 1.1
      */
     @Deprecated

src/main/java/org/apache/commons/lang3/reflect/MethodUtils.java

@@ -983,8 +983,8 @@ public class MethodUtils {
     }
 
     /**
-     * <p>Gets a combination of {@link ClassUtils#getAllSuperclasses}(Class)} and
+     * <p>Gets a combination of {@link ClassUtils#getAllSuperclasses(Class)} and
-     * {@link ClassUtils#getAllInterfaces}(Class)}, one from superclasses, one
+     * {@link ClassUtils#getAllInterfaces(Class)}, one from superclasses, one
      * from interfaces, and so on in a breadth first way.</p>
      *
      * @param cls  the class to look up, may be {@code null}

src/test/java/org/apache/commons/lang3/StringEscapeUtilsTest.java

@@ -88,7 +88,7 @@ public class StringEscapeUtilsTest {
         final String expected = input;
         final String actual = StringEscapeUtils.escapeJava(input);
 
-        /**
+        /*
          * In 2.4 StringEscapeUtils.escapeJava(String) escapes '/' characters, which are not a valid character to escape
          * in a Java string.
          */

src/test/java/org/apache/commons/lang3/time/DateUtilsRoundingTest.java

@@ -592,7 +592,6 @@ public class DateUtilsRoundingTest {
     /**
      * Test DateUtils.truncate()-method with Calendar.SECOND
      *
-     * @throws Exception so we don't have to catch it
      * @since 3.0
      */
     @Test