Use isEmpty().

Author: garydgregory

src/main/java/org/apache/commons/codec/language/ColognePhonetic.java

@@ -328,10 +328,10 @@ public String colognePhonetic(final String text) {
         char lastChar = CHAR_IGNORE;
         char chr;
 
-        while (input.length() > 0) {
+        while (!input.isEmpty()) {
             chr = input.removeNext();
 
-            if (input.length() > 0) {
+            if (!input.isEmpty()) {
                 nextChar = input.getNextChar();
             } else {
                 nextChar = CHAR_IGNORE;

src/main/java/org/apache/commons/codec/language/bm/Languages.java

@@ -184,7 +184,7 @@ public static Languages getInstance(final String languagesResourceName) {
                 } else {
                     if (line.startsWith(ResourceConstants.EXT_CMT_START)) {
                         inExtendedComment = true;
-                    } else if (line.length() > 0) {
+                    } else if (!line.isEmpty()) {
                         ls.add(line);
                     }
                 }

src/test/java/org/apache/commons/codec/language/bm/BeiderMorseEncoderTest.java

@@ -147,7 +147,7 @@ public void testOOM() throws EncoderException {
         encoder.setMaxPhonemes(10);
 
         final String phonemes = encoder.encode(phrase);
-        assertTrue(phonemes.length() > 0);
+        assertFalse(phonemes.isEmpty());
 
         final String[] phonemeArr = phonemes.split("\\|");
         assertTrue(phonemeArr.length <= 10);