Quick fix reported issues in code style

src/main/java/org/sonatype/plexus/components/cipher/Base64.java

@@ -146,10 +146,10 @@ public class Base64 {
     }
 
     /**
-     * Returns whether or not the <code>octect</code> is in the base 64 alphabet.
+     * Returns whether the <code>octect</code> is in the base 64 alphabet.
      *
      * @param b The value to test
-     * @return <code>true</code> if the value is defined in the the base 64 alphabet, <code>false</code> otherwise.
+     * @return <code>true</code> if the value is defined in the base 64 alphabet, <code>false</code> otherwise.
      */
     public static boolean isBase64(byte b) {
         return (b == PAD) || (b >= 0 && base64Alphabet[b] >= 0);
@@ -223,8 +223,7 @@ public Object decode(Object pObject) throws IllegalArgumentException {
     }
 
     /**
-     * Decodes a byte[] containing containing
-     * characters in the Base64 alphabet.
+     * Decodes a byte[] containing characters in the Base64 alphabet.
      *
      * @param pArray A byte array containing Base64 character data
      * @return a byte array containing binary data
@@ -246,7 +245,7 @@ public static byte[] encodeBase64(byte[] binaryData, boolean isChunked) {
         int lengthDataBits = binaryData.length * EIGHTBIT;
         int fewerThan24bits = lengthDataBits % TWENTYFOURBITGROUP;
         int numberTriplets = lengthDataBits / TWENTYFOURBITGROUP;
-        byte encodedData[];
+        byte[] encodedData;
         int encodedDataLength;
         int nbrChunks = 0;
 
@@ -293,9 +292,6 @@ public static byte[] encodeBase64(byte[] binaryData, boolean isChunked) {
             byte val3 = ((b3 & SIGN) == 0) ? (byte) (b3 >> 6) : (byte) ((b3) >> 6 ^ 0xfc);
 
             encodedData[encodedIndex] = lookUpBase64Alphabet[val1];
-            // log.debug( "val2 = " + val2 );
-            // log.debug( "k4   = " + (k<<4) );
-            // log.debug(  "vak  = " + (val2 | (k<<4)) );
             encodedData[encodedIndex + 1] = lookUpBase64Alphabet[val2 | (k << 4)];
             encodedData[encodedIndex + 2] = lookUpBase64Alphabet[(l << 2) | val3];
             encodedData[encodedIndex + 3] = lookUpBase64Alphabet[b3 & 0x3f];
@@ -320,8 +316,6 @@ public static byte[] encodeBase64(byte[] binaryData, boolean isChunked) {
         if (fewerThan24bits == EIGHTBIT) {
             b1 = binaryData[dataIndex];
             k = (byte) (b1 & 0x03);
-            // log.debug("b1=" + b1);
-            // log.debug("b1<<2 = " + (b1>>2) );
             byte val1 = ((b1 & SIGN) == 0) ? (byte) (b1 >> 2) : (byte) ((b1) >> 2 ^ 0xc0);
             encodedData[encodedIndex] = lookUpBase64Alphabet[val1];
             encodedData[encodedIndex + 1] = lookUpBase64Alphabet[k << 4];
@@ -374,7 +368,7 @@ public static byte[] decodeBase64(byte[] base64Data) {
         }
 
         int numberQuadruple = base64Data.length / FOURBYTE;
-        byte decodedData[];
+        byte[] decodedData;
         byte b1, b2, b3, b4, marker0, marker1;
 
         // Throw away anything not in base64Data
@@ -432,7 +426,7 @@ public static byte[] decodeBase64(byte[] base64Data) {
      * @return The data, less whitespace (see RFC 2045).
      */
     static byte[] discardWhitespace(byte[] data) {
-        byte groomedData[] = new byte[data.length];
+        byte[] groomedData = new byte[data.length];
         int bytesCopied = 0;
 
         for (byte datum : data) {
@@ -447,24 +441,24 @@ static byte[] discardWhitespace(byte[] data) {
             }
         }
 
-        byte packedData[] = new byte[bytesCopied];
+        byte[] packedData = new byte[bytesCopied];
 
         System.arraycopy(groomedData, 0, packedData, 0, bytesCopied);
 
         return packedData;
     }
 
     /**
-     * Discards any characters outside of the base64 alphabet, per
+     * Discards any characters outside the base64 alphabet, per
      * the requirements on page 25 of RFC 2045 - "Any characters
-     * outside of the base64 alphabet are to be ignored in base64
+     * outside the base64 alphabet are to be ignored in base64
      * encoded data."
      *
      * @param data The base-64 encoded data to groom
      * @return The data, less non-base64 characters (see RFC 2045).
      */
     static byte[] discardNonBase64(byte[] data) {
-        byte groomedData[] = new byte[data.length];
+        byte[] groomedData = new byte[data.length];
         int bytesCopied = 0;
 
         for (byte datum : data) {
@@ -473,7 +467,7 @@ static byte[] discardNonBase64(byte[] data) {
             }
         }
 
-        byte packedData[] = new byte[bytesCopied];
+        byte[] packedData = new byte[bytesCopied];
 
         System.arraycopy(groomedData, 0, packedData, 0, bytesCopied);
 

src/main/java/org/sonatype/plexus/components/cipher/DefaultPlexusCipher.java

@@ -120,9 +120,8 @@ public String decorate(final String str) {
     public static String[] getServiceTypes() {
         Set<String> result = new HashSet<>();
 
-        // All all providers
-        Provider[] providers = Security.getProviders();
-        for (Provider provider : providers) {
+        // All providers
+        for (Provider provider : Security.getProviders()) {
             // Get services provided by each provider
             Set<Object> keys = provider.keySet();
             for (Object o : keys) {
@@ -146,7 +145,7 @@ public static String[] getServiceTypes() {
     public static String[] getCryptoImpls(final String serviceType) {
         Set<String> result = new HashSet<>();
 
-        // All all providers
+        // All providers
         Provider[] providers = Security.getProviders();
         for (Provider provider : providers) {
             // Get services provided by each provider
@@ -168,20 +167,11 @@ public static String[] getCryptoImpls(final String serviceType) {
 
     // ---------------------------------------------------------------
     public static void main(final String[] args) {
-        // Security.addProvider( new BouncyCastleProvider() );
-
         String[] serviceTypes = getServiceTypes();
-        if (serviceTypes != null) {
-            for (String serviceType : serviceTypes) {
-                String[] serviceProviders = getCryptoImpls(serviceType);
-                if (serviceProviders != null) {
-                    System.out.println(serviceType + ": provider list");
-                    for (String provider : serviceProviders) {
-                        System.out.println("        " + provider);
-                    }
-                } else {
-                    System.out.println(serviceType + ": does not have any providers in this environment");
-                }
+        for (String serviceType : serviceTypes) {
+            System.out.println(serviceType + ": provider list");
+            for (String provider : getCryptoImpls(serviceType)) {
+                System.out.println("        " + provider);
             }
         }
     }

src/main/java/org/sonatype/plexus/components/cipher/PBECipher.java

@@ -133,11 +133,9 @@ private Cipher createCipher(final char[] pwd, byte[] salt, final int mode)
                     InvalidAlgorithmParameterException, InvalidKeySpecException {
         MessageDigest _digester = MessageDigest.getInstance(DIGEST_ALG);
 
-        byte[] keyAndIv = new byte[SPICE_SIZE * 2];
-
         KeySpec spec = new PBEKeySpec(pwd, salt, 310000, SPICE_SIZE * 16);
         SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
-        keyAndIv = factory.generateSecret(spec).getEncoded();
+        byte[] keyAndIv = factory.generateSecret(spec).getEncoded();
 
         byte[] key = new byte[SPICE_SIZE];
 

src/main/java/org/sonatype/plexus/components/cipher/PlexusCipher.java

@@ -23,66 +23,66 @@ public interface PlexusCipher {
     /**
      * encrypt given string with the given passPhrase and encode it into base64
      *
-     * @param str
-     * @param passPhrase
+     * @param str       string to encrypt
+     * @param passPhrase pass phrase
      * @return encrypted str
-     * @throws PlexusCipherException
+     * @throws PlexusCipherException if encryption fails
      */
     String encrypt(String str, String passPhrase) throws PlexusCipherException;
 
     /**
      * encrypt given string with the given passPhrase, encode it into base64 and return result, wrapped into { }
      * decorations
      *
-     * @param str
-     * @param passPhrase
+     * @param str      string to encrypt
+     * @param passPhrase pass phrase
      * @return encrypted and decorated str
-     * @throws PlexusCipherException
+     * @throws PlexusCipherException if encryption fails
      */
     String encryptAndDecorate(String str, String passPhrase) throws PlexusCipherException;
 
     /**
      * decrypt given base64 encrypted string
      *
-     * @param str
-     * @param passPhrase
+     * @param str       base64 encoded string
+     * @param passPhrase     pass phrase
      * @return decrypted str
-     * @throws PlexusCipherException
+     * @throws PlexusCipherException if decryption fails
      */
     String decrypt(String str, String passPhrase) throws PlexusCipherException;
 
     /**
      * decrypt given base64 encoded encrypted string. If string is decorated, decrypt base64 encoded string inside
      * decorations
      *
-     * @param str
-     * @param passPhrase
+     * @param str    base64 encoded string
+     * @param passPhrase     pass phrase
      * @return decrypted decorated str
-     * @throws PlexusCipherException
+     * @throws PlexusCipherException if decryption fails
      */
     String decryptDecorated(String str, String passPhrase) throws PlexusCipherException;
 
     /**
      * check if given string is decorated
      *
-     * @param str
+     * @param str string to check
      * @return true if string is encrypted
      */
     boolean isEncryptedString(String str);
 
     /**
      * return string inside decorations
      *
-     * @param str
+     * @param str decorated string
      * @return undecorated str
-     * @throws PlexusCipherException
+     * @throws PlexusCipherException if decryption fails
      */
     String unDecorate(String str) throws PlexusCipherException;
 
     /**
      * decorated given string with { and }
      *
-     * @param str
+     * @param str string to decorate
      * @return decorated str
      */
     String decorate(String str);

src/test/java/org/sonatype/plexus/components/cipher/DefaultPlexusCipherTest.java

@@ -28,15 +28,15 @@
 public class DefaultPlexusCipherTest {
     private final String passPhrase = "testtest";
 
-    String str = "my testing phrase";
+    final String str = "my testing phrase";
 
-    String encStr = "LFulS0pAlmMHpDtm+81oPcqctcwpco5p4Fo7640/gqDRifCahXBefG4FxgKcu17v";
+    final String encStr = "LFulS0pAlmMHpDtm+81oPcqctcwpco5p4Fo7640/gqDRifCahXBefG4FxgKcu17v";
 
     DefaultPlexusCipher pc;
 
     // -------------------------------------------------------------
     @Before
-    public void prepare() throws Exception {
+    public void prepare() {
         pc = new DefaultPlexusCipher();
     }
 
@@ -90,7 +90,7 @@ public void testDefaultAlgorithmExists() throws Exception {
     // -------------------------------------------------------------
 
     @Test
-    public void stestFindDefaultAlgorithm() throws Exception {
+    public void stestFindDefaultAlgorithm() {
         String[] res = DefaultPlexusCipher.getServiceTypes();
         assertNotNull("No service types found in the current environment", res);
 
@@ -108,7 +108,6 @@ public void stestFindDefaultAlgorithm() throws Exception {
     }
 
     // -------------------------------------------------------------
-
     @Test
     public void testEncrypt() throws Exception {
         String xRes = pc.encrypt(str, passPhrase);
@@ -124,18 +123,16 @@ public void testEncrypt() throws Exception {
 
     @Test
     public void testEncryptVariableLengths() throws Exception {
-        String xRes = null;
-        String res = null;
         String pass = "g";
 
         for (int i = 0; i < 64; i++) {
             pass = pass + 'a';
 
-            xRes = pc.encrypt(str, pass);
+            String xRes = pc.encrypt(str, pass);
 
             System.out.println(pass.length() + ": " + xRes);
 
-            res = pc.decrypt(xRes, pass);
+            String res = pc.decrypt(xRes, pass);
 
             assertEquals("Encryption/Decryption did not produce desired result", str, res);
         }
@@ -150,7 +147,7 @@ public void testDecrypt() throws Exception {
     // -------------------------------------------------------------
 
     @Test
-    public void testDecorate() throws Exception {
+    public void testDecorate() {
         String res = pc.decorate("aaa");
         assertEquals(
                 "Decoration failed",

src/test/java/org/sonatype/plexus/components/cipher/PBECipherTest.java

@@ -23,57 +23,57 @@ Licensed to the Apache Software Foundation (ASF) under one
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNotNull;
 
 /**
  * @author Oleg Gusakov
  */
 public class PBECipherTest {
-    PBECipher _cipher;
+    PBECipher pbeCipher;
 
-    String _cleatText = "veryOpenText";
+    final String clearText = "veryOpenText";
 
-    String _encryptedText = "F7eMV2QRQF4H0ODCA1nrTGUWacCXVvPemSjaQjGbO6U=";
+    final String encryptedText = "F7eMV2QRQF4H0ODCA1nrTGUWacCXVvPemSjaQjGbO6U=";
 
-    String _password = "testtest";
+    final String password = "testtest";
 
     @Before
-    public void prepare() throws Exception {
-        _cipher = new PBECipher();
+    public void prepare() {
+        pbeCipher = new PBECipher();
     }
 
     @Test
     public void testEncrypt() throws Exception {
-        String enc = _cipher.encrypt64(_cleatText, _password);
+        String enc = pbeCipher.encrypt64(clearText, password);
 
         assertNotNull(enc);
 
         System.out.println(enc);
 
-        String enc2 = _cipher.encrypt64(_cleatText, _password);
+        String enc2 = pbeCipher.encrypt64(clearText, password);
 
         assertNotNull(enc2);
 
         System.out.println(enc2);
 
-        assertFalse(enc.equals(enc2));
+        assertNotEquals(enc, enc2);
     }
 
     @Test
     public void testDecrypt() throws Exception {
-        String clear = _cipher.decrypt64(_encryptedText, _password);
+        String clear = pbeCipher.decrypt64(encryptedText, password);
 
-        assertEquals(_cleatText, clear);
+        assertEquals(clearText, clear);
     }
 
     @Test
     public void testEncoding() throws Exception {
         System.out.println("file.encoding=" + System.getProperty("file.encoding"));
 
         String pwd = "äüöÜÖÄß\"§$%&/()=?é";
-        String encPwd = _cipher.encrypt64(pwd, pwd);
-        String decPwd = _cipher.decrypt64(encPwd, pwd);
+        String encPwd = pbeCipher.encrypt64(pwd, pwd);
+        String decPwd = pbeCipher.decrypt64(encPwd, pwd);
         assertEquals(pwd, decPwd);
     }
 }