remove unused variables, make some methods static

json-path/src/main/java/com/jayway/jsonpath/internal/Parser.java

@@ -93,7 +93,7 @@ public class Parser {
         return next(offset);
     }
 
-    public boolean isInts(String chars, boolean allowSequence){
+    public static boolean isInts(String chars, boolean allowSequence){
         for (int i = 0; i < chars.length(); i++){
 
             char c = chars.charAt(i);
@@ -108,7 +108,7 @@ public class Parser {
     }
 
 
-    private boolean contains(Token[] arr, char checkFor){
+    private static boolean contains(Token[] arr, char checkFor){
         for (int i = 0; i < arr.length; i++){
             if(arr[i].c == checkFor){
                 return true;

json-path/src/main/java/com/jayway/jsonpath/internal/PathCompiler.java

@@ -304,8 +304,7 @@ public class PathCompiler {
                         } else if (bracketCount == 0 && isLogicOperatorChar(current)) {
 
                             if (isLogicOperatorChar(chars[i + 1])) {
-                                char op1 = current;
-                                char op2 = chars[++i];
+                                ++i;
                             }
                             criteria.add(createCriteria(pathBuffer, operatorBuffer, valueBuffer));
 
@@ -335,26 +334,26 @@ public class PathCompiler {
             return new PredicatePathToken(filter2);
         }
 
-        private Criteria createCriteria(StringBuilder pathBuffer, StringBuilder operatorBuffer, StringBuilder valueBuffer) {
+        private static Criteria createCriteria(StringBuilder pathBuffer, StringBuilder operatorBuffer, StringBuilder valueBuffer) {
             return Criteria.create(pathBuffer.toString().trim(), operatorBuffer.toString().trim(), valueBuffer.toString().trim());
         }
 
-        private boolean isAnd(char c) {
+        private static boolean isAnd(char c) {
             return c == '&';
         }
 
-        private boolean isOr(char c) {
+        private static boolean isOr(char c) {
             if (c == '|') {
                 throw new UnsupportedOperationException("OR operator is not supported.");
             }
             return false;
         }
 
-        private boolean isLogicOperatorChar(char c) {
+        private static boolean isLogicOperatorChar(char c) {
             return isAnd(c) || isOr(c);
         }
 
-        private boolean isOperatorChar(char c) {
+        private static boolean isOperatorChar(char c) {
             return c == '=' || c == '!' || c == '<' || c == '>';
         }