Rhino on Dalvik/ART

Can't guarantee this will fix the android issues, but it will work
around at least one issue according to my research.

Fixes: java-json-tools/json-schema-validator#153

Author: huggsboson

build.gradle

@@ -25,7 +25,7 @@ apply(plugin: "idea");
 apply(plugin: "eclipse");
 
 group = "com.box";
-version = "1.2.6";
+version = "1.2.7";
 sourceCompatibility = "1.6";
 targetCompatibility = "1.6"; // defaults to sourceCompatibility
 

src/main/java/com/github/fge/jsonschema/core/util/RhinoHelper.java

@@ -90,7 +90,12 @@ private RhinoHelper()
         final Context ctx = Context.enter();
         try {
             SCOPE = ctx.initStandardObjects(null, false);
-            ctx.evaluateString(SCOPE, jsAsString, "re", 1, null);
+            try {
+                ctx.evaluateString(SCOPE, jsAsString, "re", 1, null);
+            } catch(UnsupportedOperationException e) {
+                ctx.setOptimizationLevel(-1);
+                ctx.evaluateString(SCOPE, jsAsString, "re", 1, null);
+            }
             REGEX_IS_VALID = (Function) SCOPE.get("regexIsValid", SCOPE);
             REG_MATCH = (Function) SCOPE.get("regMatch", SCOPE);
         } finally {