Use final

Author: garydgregory

src/main/java/org/apache/commons/io/ThreadUtils.java

@@ -24,7 +24,7 @@
  *
  * @since 2.12.0
  */
-public class ThreadUtils {
+public final class ThreadUtils {
 
     private static int getNanosOfMilli(final Duration duration) {
         return duration.getNano() % 1_000_000;

src/main/java/org/apache/commons/io/charset/CharsetDecoders.java

@@ -25,7 +25,7 @@
  *
  * @since 2.12.0
  */
-public class CharsetDecoders {
+public final class CharsetDecoders {
 
     /**
      * Returns the given non-null CharsetDecoder or a new default CharsetDecoder.

src/main/java/org/apache/commons/io/charset/CharsetEncoders.java

@@ -25,7 +25,7 @@
  *
  * @since 2.12.0
  */
-public class CharsetEncoders {
+public final class CharsetEncoders {
 
     /**
      * Returns the given non-null CharsetEncoder or a new default CharsetEncoder.

src/main/java/org/apache/commons/io/file/FilesUncheck.java

@@ -54,7 +54,7 @@
  * @see UncheckedIOException
  * @since 2.12.0
  */
-public class FilesUncheck {
+public final class FilesUncheck {
 
     /**
      * Delegates to {@link Files#copy(InputStream, Path, CopyOption...)} throwing {@link UncheckedIOException} instead of

src/main/java/org/apache/commons/io/file/attribute/FileTimes.java

@@ -30,7 +30,7 @@
  *
  * @since 2.12.0
  */
-public class FileTimes {
+public final class FileTimes {
 
     /**
      * Constant for the {@code 1970-01-01T00:00:00Z} {@link Instant#EPOCH epoch} as a time stamp attribute.