Use Arrays.fill().

Author: garydgregory

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

@@ -18,6 +18,7 @@
 
 import java.nio.charset.StandardCharsets;
 import java.security.SecureRandom;
+import java.util.Arrays;
 import java.util.concurrent.ThreadLocalRandom;
 
 /**
@@ -217,9 +218,7 @@ public static String crypt(final byte[] original, String salt) {
         final int eSwap0 = CON_SALT[charZero];
         final int eSwap1 = CON_SALT[charOne] << 4;
         final byte key[] = new byte[8];
-        for (int i = 0; i < key.length; i++) {
-            key[i] = 0;
-        }
+        Arrays.fill(key, (byte) 0);
 
         for (int i = 0; i < key.length && i < original.length; i++) {
             final int iChar = original[i];

src/test/java/org/apache/commons/codec/digest/PureJavaCrc32CTest.java

@@ -16,6 +16,8 @@
  */
 package org.apache.commons.codec.digest;
 
+import java.util.Arrays;
+
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -32,17 +34,13 @@ public class PureJavaCrc32CTest {
 
     @Test
     public void testZeros() {
-        for(int i = 0; i < data.length; i ++) {
-            data[i]= (byte) 0;
-        }
+        Arrays.fill(data, (byte) 0);
         check(0x8a9136aa); // aa 36 91 8a
     }
 
     @Test
     public void testOnes() {
-        for(int i = 0; i < data.length; i ++) {
-            data[i]= (byte) 0xFF;
-        }
+        Arrays.fill(data, (byte) 0xFF);
         check(0x62a8ab43); // 43 ab a8 62
     }