Use constant.equals()

There are some equals() that are not constant.equals(variable), but variable.equals(constant)

Author: AlexCai2019

src/main/java/org/json/JSONArray.java

@@ -334,11 +334,11 @@ public Object get(int index) throws JSONException {
      */
     public boolean getBoolean(int index) throws JSONException {
         Object object = this.get(index);
-        if (object.equals(Boolean.FALSE)
+        if (Boolean.FALSE.equals(object)
                 || (object instanceof String && ((String) object)
                         .equalsIgnoreCase("false"))) {
             return false;
-        } else if (object.equals(Boolean.TRUE)
+        } else if (Boolean.TRUE.equals(object)
                 || (object instanceof String && ((String) object)
                         .equalsIgnoreCase("true"))) {
             return true;

src/main/java/org/json/JSONML.java

@@ -111,7 +111,7 @@ private static Object parse(
                             }
                         } else if (c == '[') {
                             token = x.nextToken();
-                            if (token.equals("CDATA") && x.next() == '[') {
+                            if ("CDATA".equals(token) && x.next() == '[') {
                                 if (ja != null) {
                                     ja.put(x.nextCDATA());
                                 }

src/main/java/org/json/JSONObject.java

@@ -679,11 +679,11 @@ public <E extends Enum<E>> E getEnum(Class<E> clazz, String key) throws JSONExce
      */
     public boolean getBoolean(String key) throws JSONException {
         Object object = this.get(key);
-        if (object.equals(Boolean.FALSE)
+        if (Boolean.FALSE.equals(object)
                 || (object instanceof String && ((String) object)
                         .equalsIgnoreCase("false"))) {
             return false;
-        } else if (object.equals(Boolean.TRUE)
+        } else if (Boolean.TRUE.equals(object)
                 || (object instanceof String && ((String) object)
                         .equalsIgnoreCase("true"))) {
             return true;
@@ -1911,7 +1911,7 @@ private static <A extends Annotation> A getAnnotation(final Method m, final Clas
         }
 
         //If the superclass is Object, no annotations will be found any more
-        if (c.getSuperclass().equals(Object.class))
+        if (Object.class.equals(c.getSuperclass()))
             return null;
 
         try {
@@ -1969,7 +1969,7 @@ private static int getAnnotationDepth(final Method m, final Class<? extends Anno
         }
 
         //If the superclass is Object, no annotations will be found any more
-        if (c.getSuperclass().equals(Object.class))
+        if (Object.class.equals(c.getSuperclass()))
             return -1;
 
         try {
@@ -2751,9 +2751,6 @@ private static Object wrap(Object object, Set<Object> objectsRecord) {
 
     private static Object wrap(Object object, Set<Object> objectsRecord, int recursionDepth, JSONParserConfiguration jsonParserConfiguration) {
         try {
-            if (NULL.equals(object)) {
-                return NULL;
-            }
             if (object instanceof JSONObject || object instanceof JSONArray
                     || NULL.equals(object) || object instanceof JSONString
                     || object instanceof Byte || object instanceof Character
@@ -3022,7 +3019,7 @@ private static JSONException recursivelyDefinedObjectException(String key) {
      * @return number without leading zeros
      */
     private static String removeLeadingZerosOfNumber(String value){
-        if (value.equals("-")){return value;}
+        if ("-".equals(value)){return value;}
         boolean negativeFirstChar = (value.charAt(0) == '-');
         int counter = negativeFirstChar ? 1:0;
         while (counter < value.length()){

src/main/java/org/json/JSONPointer.java

@@ -127,7 +127,7 @@ public JSONPointer(final String pointer) {
         if (pointer == null) {
             throw new NullPointerException("pointer cannot be null");
         }
-        if (pointer.isEmpty() || pointer.equals("#")) {
+        if (pointer.isEmpty() || "#".equals(pointer)) {
             this.refTokens = Collections.emptyList();
             return;
         }