Moved stringifyJson to Json class.

src/main/java/org/dynmap/web/Json.java

@@ -0,0 +1,47 @@
+package org.dynmap.web;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+
+public class Json {
+    public static String stringifyJson(Object o) {
+        if (o == null) {
+            return "null";
+        } else if (o instanceof Boolean) {
+            return ((Boolean) o) ? "true" : "false";
+        } else if (o instanceof String) {
+            return "\"" + ((String)o).replace("\"", "\\\"") + "\"";
+        } else if (o instanceof Integer || o instanceof Long || o instanceof Float || o instanceof Double) {
+            return o.toString();
+        } else if (o instanceof LinkedHashMap<?, ?>) {
+            LinkedHashMap<?, ?> m = (LinkedHashMap<?, ?>) o;
+            StringBuilder sb = new StringBuilder();
+            sb.append("{");
+            boolean first = true;
+            for (Object key : m.keySet()) {
+                if (first)
+                    first = false;
+                else
+                    sb.append(",");
+
+                sb.append(stringifyJson(key));
+                sb.append(": ");
+                sb.append(stringifyJson(m.get(key)));
+            }
+            sb.append("}");
+            return sb.toString();
+        } else if (o instanceof List<?>) {
+            List<?> l = (List<?>) o;
+            StringBuilder sb = new StringBuilder();
+            int count = 0;
+            for (int i = 0; i < l.size(); i++) {
+                sb.append(count++ == 0 ? "[" : ",");
+                sb.append(stringifyJson(l.get(i)));
+            }
+            sb.append("]");
+            return sb.toString();
+        } else {
+            return "undefined";
+        }
+    }
+}