ABP/Android V8 integration code

jni/wrap.cpp

 /*
  * This file is part of the Adblock Plus,
  * Copyright (C) 2006-2012 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <math.h>
 #include <android/log.h>
 #include <jni.h>
 #include <v8.h>
 
 jobject NewBoolean(JNIEnv *pEnv, jboolean value)
 {
-  static jclass cls = pEnv->FindClass("java/lang/Boolean");
+  static jclass cls = reinterpret_cast<jclass>(pEnv->NewGlobalRef(pEnv->FindClass("java/lang/Boolean")));
   static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(Z)V");
   return pEnv->NewObject(cls, cid, value);
 }
 
 jobject NewInt(JNIEnv *pEnv, jint value)
 {
-  static jclass cls = pEnv->FindClass("java/lang/Integer");
+  static jclass cls = reinterpret_cast<jclass>(pEnv->NewGlobalRef(pEnv->FindClass("java/lang/Integer")));
   static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(I)V");
   return pEnv->NewObject(cls, cid, value);
 }
 
 jobject NewLong(JNIEnv *pEnv, jlong value)
 {
-  static jclass cls = pEnv->FindClass("java/lang/Long");
+  static jclass cls = reinterpret_cast<jclass>(pEnv->NewGlobalRef(pEnv->FindClass("java/lang/Long")));
   static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(J)V");
   return pEnv->NewObject(cls, cid, value);
 }
 
 jobject NewDouble(JNIEnv *pEnv, jdouble value)
 {
-  static jclass cls = pEnv->FindClass("java/lang/Double");
+  static jclass cls = reinterpret_cast<jclass>(pEnv->NewGlobalRef(pEnv->FindClass("java/lang/Double")));
   static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(D)V");
   return pEnv->NewObject(cls, cid, value);
 }
 
 jstring NewString(JNIEnv *pEnv, v8::Handle<v8::String> str)
 {
   return pEnv->NewStringUTF(*v8::String::Utf8Value(str));
 }
 
 jobject NewDate(JNIEnv *pEnv, v8::Handle<v8::Date> date)
 {
-  static jclass cls = pEnv->FindClass("java/lang/Double");
+  static jclass cls = reinterpret_cast<jclass>(pEnv->NewGlobalRef(pEnv->FindClass("java/lang/Double")));
   static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(J)V");
   jlong value = floor(date->NumberValue());
   return pEnv->NewObject(cls, cid, value);
 }
 
 jobject wrapJSObject(JNIEnv *pEnv, v8::Handle<v8::Value> value)
 {
   v8::HandleScope handle_scope;
 
   if (value.IsEmpty() || value->IsNull() || value->IsUndefined()) return NULL;
@@ skipping 81 matching lines @@
         pEnv->DeleteLocalRef(item);
       }
 
       result = items;
     }
   }
 
   return try_catch.HasCaught() ? v8::Handle<v8::Value>() : handle_scope.Close(result);
 //  return ThrowIf(try_catch) ? v8::Handle<v8::Value>() : handle_scope.Close(result);
 }