Remove unused imports. Use final.

Author: aherbert

src/main/java/org/apache/commons/codec/binary/BaseNCodec.java

@@ -23,7 +23,6 @@
 import org.apache.commons.codec.BinaryEncoder;
 import org.apache.commons.codec.DecoderException;
 import org.apache.commons.codec.EncoderException;
-import org.apache.commons.codec.binary.BaseNCodec.Context;
 
 /**
  * Abstract superclass for Base-N encoders and decoders.

src/main/java/org/apache/commons/codec/binary/Hex.java

@@ -24,7 +24,6 @@
 import org.apache.commons.codec.BinaryDecoder;
 import org.apache.commons.codec.BinaryEncoder;
 import org.apache.commons.codec.CharEncoding;
-import org.apache.commons.codec.Charsets;
 import org.apache.commons.codec.DecoderException;
 import org.apache.commons.codec.EncoderException;
 

src/main/java/org/apache/commons/codec/binary/StringUtils.java

@@ -23,7 +23,6 @@
 import java.nio.charset.StandardCharsets;
 
 import org.apache.commons.codec.CharEncoding;
-import org.apache.commons.codec.Charsets;
 
 /**
  * Converts String to and from bytes using the encodings required by the Java specification. These encodings are

src/main/java/org/apache/commons/codec/digest/MurmurHash3.java

@@ -17,9 +17,6 @@
 
 package org.apache.commons.codec.digest;
 
-import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
-
 import org.apache.commons.codec.binary.StringUtils;
 
 /**

src/main/java/org/apache/commons/codec/net/QuotedPrintableCodec.java

@@ -27,7 +27,6 @@
 
 import org.apache.commons.codec.BinaryDecoder;
 import org.apache.commons.codec.BinaryEncoder;
-import org.apache.commons.codec.Charsets;
 import org.apache.commons.codec.DecoderException;
 import org.apache.commons.codec.EncoderException;
 import org.apache.commons.codec.StringDecoder;

src/test/java/org/apache/commons/codec/CharsetsTest.java

@@ -18,7 +18,6 @@
 package org.apache.commons.codec;
 
 import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
 
 import org.junit.Assert;
 import org.junit.Test;

src/test/java/org/apache/commons/codec/digest/MurmurHash3Test.java

@@ -949,7 +949,7 @@ public void testIncrementalHashWithUnprocessedBytesAndHugeLengthArray() {
         byte[] bytes = null;
         try {
             bytes = new byte[hugeLength];
-        } catch (OutOfMemoryError ignore) {
+        } catch (final OutOfMemoryError ignore) {
             // Some VMs cannot allocate an array this large.
             // Some test environments may not have enough available memory for this.
         }

src/test/java/org/apache/commons/codec/digest/XXHash32OverflowTest.java

@@ -44,7 +44,7 @@ public void testIncrementalHashWithUnprocessedBytesAndHugeLengthArray() {
         byte[] bytes = null;
         try {
             bytes = new byte[hugeLength];
-        } catch (OutOfMemoryError ignore) {
+        } catch (final OutOfMemoryError ignore) {
             // Some VMs cannot allocate an array this large.
             // Some test environments may not have enough available memory for this.
         }