diff --git a/build/android/Android.mk b/build/android/Android.mk
index 96fe57e16..b0d51fc32 100755
--- a/build/android/Android.mk
+++ b/build/android/Android.mk
@@ -53,6 +53,7 @@ LOCAL_SRC_FILES := \
 	enum.c \
 	event.c \
 	friend.c \
+	friendlist.c \
 	info.c \
 	linphonecall.c \
 	linphonecore.c \
diff --git a/coreapi/linphonecore_jni.cc b/coreapi/linphonecore_jni.cc
index 433efcae4..15cb4e7b2 100644
--- a/coreapi/linphonecore_jni.cc
+++ b/coreapi/linphonecore_jni.cc
@@ -3182,17 +3182,10 @@ extern "C" void Java_org_linphone_core_LinphoneChatRoomImpl_markAsRead(JNIEnv*
 
 
 extern "C" jlong Java_org_linphone_core_LinphoneChatRoomImpl_createFileTransferMessage(JNIEnv* env, jobject thiz, jlong ptr, jstring jname, jstring jtype, jstring jsubtype, jint data_size) {
-	LinphoneContentPrivate content = {0};
+	LinphoneContent content = {0};
 	LinphoneChatMessage *message = NULL;
 
-	content.type = (char*)env->GetStringUTFChars(jtype, NULL);
-	content.subtype = (char*)env->GetStringUTFChars(jsubtype, NULL);
-	content.name = (char*)env->GetStringUTFChars(jname, NULL);
-	content.size = data_size;
-	message = linphone_chat_room_create_file_transfer_message((LinphoneChatRoom *)ptr, LINPHONE_CONTENT(&content));
-	env->ReleaseStringUTFChars(jtype, content.type);
-	env->ReleaseStringUTFChars(jsubtype, content.subtype);
-	env->ReleaseStringUTFChars(jname, content.name);
+	message = linphone_chat_room_create_file_transfer_message((LinphoneChatRoom *)ptr, &content);
 
 	return (jlong) message;
 }
@@ -4576,24 +4569,14 @@ JNIEXPORT jobject JNICALL Java_org_linphone_core_LinphoneCoreImpl_subscribe(JNIE
 		jstring jevname, jint expires, jstring jtype, jstring jsubtype, jbyteArray jdata, jstring jencoding){
 	LinphoneCore *lc=(LinphoneCore*)coreptr;
 	LinphoneAddress *addr=(LinphoneAddress*)addrptr;
-	LinphoneContentPrivate content={0};
+	LinphoneContent content={0};
 	LinphoneEvent *ev;
 	jobject jev=NULL;
 	const char *evname=env->GetStringUTFChars(jevname,NULL);
 
+	ev=linphone_core_subscribe(lc,addr,evname,expires,linphone_content_get_type(&content) ? &content : NULL);
 	if (jtype){
-		content.type=(char*)env->GetStringUTFChars(jtype,NULL);
-		content.subtype=(char*)env->GetStringUTFChars(jsubtype,NULL);
-		content.encoding=jencoding ? (char*)env->GetStringUTFChars(jencoding,NULL) : NULL;
-		content.data=(void*)env->GetByteArrayElements(jdata,NULL);
-		content.size=env->GetArrayLength(jdata);
-	}
-	ev=linphone_core_subscribe(lc,addr,evname,expires,content.type ? LINPHONE_CONTENT(&content) : NULL);
-	if (jtype){
-		env->ReleaseStringUTFChars(jtype,content.type);
-		env->ReleaseStringUTFChars(jsubtype,content.subtype);
-		if (jencoding) env->ReleaseStringUTFChars(jencoding,content.encoding);
-		env->ReleaseByteArrayElements(jdata,(jbyte*)content.data,JNI_ABORT);
+		env->ReleaseByteArrayElements(jdata,(jbyte*)linphone_content_get_user_data(&content),JNI_ABORT);
 	}
 	env->ReleaseStringUTFChars(jevname,evname);
 	if (ev){
@@ -4611,24 +4594,16 @@ JNIEXPORT jobject JNICALL Java_org_linphone_core_LinphoneCoreImpl_publish(JNIEnv
 																		  jstring jtype, jstring jsubtype, jbyteArray jdata, jstring jencoding){
 	LinphoneCore *lc=(LinphoneCore*)coreptr;
 	LinphoneAddress *addr=(LinphoneAddress*)addrptr;
-	LinphoneContentPrivate content={0};
+	LinphoneContent content={0};
 	LinphoneEvent *ev;
 	jobject jev=NULL;
 	const char *evname=env->GetStringUTFChars(jevname,NULL);
 
+        ev=linphone_core_subscribe(lc,addr,evname,expires,linphone_content_get_type(&content) ? &content : NULL);
+
 	if (jtype){
-		content.type=(char*)env->GetStringUTFChars(jtype,NULL);
-		content.subtype=(char*)env->GetStringUTFChars(jsubtype,NULL);
-		content.encoding=jencoding ? (char*)env->GetStringUTFChars(jencoding,NULL) : NULL;
-		content.data=(void*)env->GetByteArrayElements(jdata,NULL);
-		content.size=env->GetArrayLength(jdata);
-	}
-	ev=linphone_core_publish(lc,addr,evname,expires,content.type ? LINPHONE_CONTENT(&content) : NULL);
-	if (jtype){
-		env->ReleaseStringUTFChars(jtype,content.type);
-		env->ReleaseStringUTFChars(jsubtype,content.subtype);
-		if (jencoding) env->ReleaseStringUTFChars(jencoding,content.encoding);
-		env->ReleaseByteArrayElements(jdata,(jbyte*)content.data,JNI_ABORT);
+                env->ReleaseByteArrayElements(jdata,(jbyte*)linphone_content_get_user_data(&content),JNI_ABORT);
+
 	}
 	env->ReleaseStringUTFChars(jevname,evname);
 	if (ev){
@@ -4771,33 +4746,24 @@ static jobject create_java_linphone_content(JNIEnv *env, const LinphoneContent *
 	jstring jtype, jsubtype, jencoding, jname;
 	jbyteArray jdata = NULL;
 	jint jsize = 0;
-	const LinphoneContentPrivate *content = LINPHONE_CONTENT_PRIVATE(icontent);
 
 	contentClass = (jclass)env->FindClass("org/linphone/core/LinphoneContentImpl");
 	ctor = env->GetMethodID(contentClass,"<init>", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;[BLjava/lang/String;I)V");
 
-	jtype = env->NewStringUTF(content->type);
-	jsubtype = env->NewStringUTF(content->subtype);
-	jencoding = content->encoding ? env->NewStringUTF(content->encoding) : NULL;
-	jname = content->name ? env->NewStringUTF(content->name) : NULL;
-	jsize = (jint) content->size;
+	jtype = env->NewStringUTF(linphone_content_get_type(icontent));
+	jsubtype = env->NewStringUTF(linphone_content_get_subtype(icontent));
+	jencoding = linphone_content_get_encoding(icontent) ? env->NewStringUTF(linphone_content_get_encoding(icontent)) : NULL;
+	jname = linphone_content_get_name(icontent)  ? env->NewStringUTF(linphone_content_get_name(icontent)) : NULL;
+	jsize = (jint) linphone_content_get_size(icontent);
 
-	if (content->data){
-		jdata = env->NewByteArray(content->size);
-		env->SetByteArrayRegion(jdata, 0, content->size, (jbyte*)content->data);
+	if (linphone_content_get_user_data(icontent)){
+		jdata = env->NewByteArray(linphone_content_get_size(icontent));
+		env->SetByteArrayRegion(jdata, 0, linphone_content_get_size(icontent), (jbyte*)linphone_content_get_user_data(icontent));
 	}
 
 	jobject jobj = env->NewObject(contentClass, ctor, jname, jtype, jsubtype, jdata, jencoding, jsize);
 
 	env->DeleteLocalRef(contentClass);
-	env->DeleteLocalRef(jtype);
-	env->DeleteLocalRef(jsubtype);
-	if (jencoding) {
-		env->DeleteLocalRef(jencoding);
-	}
-	if (jname) {
-		env->DeleteLocalRef(jname);
-	}
 
 	return jobj;
 }
@@ -4867,16 +4833,9 @@ JNIEXPORT jobject JNICALL Java_org_linphone_core_LinphoneInfoMessageImpl_getCont
  * Signature: (JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
  */
 JNIEXPORT void JNICALL Java_org_linphone_core_LinphoneInfoMessageImpl_setContent(JNIEnv *env, jobject jobj, jlong infoptr, jstring jtype, jstring jsubtype, jstring jdata){
-	LinphoneContentPrivate content={0};
+	LinphoneContent content={0};
 
-	content.type=(char*)env->GetStringUTFChars(jtype,NULL);
-	content.subtype=(char*)env->GetStringUTFChars(jsubtype,NULL);
-	content.data=(void*)env->GetStringUTFChars(jdata,NULL);
-	content.size=strlen((char*)content.data);
-	linphone_info_message_set_content((LinphoneInfoMessage*)infoptr,LINPHONE_CONTENT(&content));
-	env->ReleaseStringUTFChars(jtype,content.type);
-	env->ReleaseStringUTFChars(jsubtype,content.subtype);
-	env->ReleaseStringUTFChars(jdata,(char*)content.data);
+	linphone_info_message_set_content((LinphoneInfoMessage*)infoptr,&content);
 }
 
 /*
@@ -4975,26 +4934,13 @@ JNIEXPORT jint JNICALL Java_org_linphone_core_LinphoneEventImpl_denySubscription
  * Signature: (JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;)I
  */
 JNIEXPORT jint JNICALL Java_org_linphone_core_LinphoneEventImpl_notify(JNIEnv *env, jobject jobj, jlong evptr, jstring jtype, jstring jsubtype, jbyteArray jdata, jstring jencoding){
-	LinphoneContentPrivate content={0};
+	LinphoneContent content={0};
 	LinphoneEvent *ev=(LinphoneEvent*)evptr;
 	jint err;
 
-	if (jtype){
-		content.type=(char*)env->GetStringUTFChars(jtype,NULL);
-		content.subtype=(char*)env->GetStringUTFChars(jsubtype,NULL);
-		content.encoding=jencoding ? (char*)env->GetStringUTFChars(jsubtype,NULL) : NULL;
-		content.data=(void*)env->GetByteArrayElements(jdata,NULL);
-		content.size=env->GetArrayLength(jdata);
-	}
 
-	err=linphone_event_notify(ev,content.type ? LINPHONE_CONTENT(&content) : NULL);
+	err=linphone_event_notify(ev,linphone_content_get_type(&content) ? &content : NULL);
 
-	if (jtype){
-		env->ReleaseStringUTFChars(jtype,content.type);
-		env->ReleaseStringUTFChars(jsubtype,content.subtype);
-		if (jencoding) env->ReleaseStringUTFChars(jencoding,content.encoding);
-		env->ReleaseByteArrayElements(jdata,(jbyte*)content.data,JNI_ABORT);
-	}
 	return err;
 }
 
@@ -5004,26 +4950,12 @@ JNIEXPORT jint JNICALL Java_org_linphone_core_LinphoneEventImpl_notify(JNIEnv *e
  * Signature: (JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;)I
  */
 JNIEXPORT jint JNICALL Java_org_linphone_core_LinphoneEventImpl_updateSubscribe(JNIEnv *env, jobject jobj, jlong evptr, jstring jtype, jstring jsubtype, jbyteArray jdata, jstring jencoding){
-	LinphoneContentPrivate content={0};
+	LinphoneContent content={0};
 	LinphoneEvent *ev=(LinphoneEvent*)evptr;
 	jint err;
 
-	if (jtype){
-		content.type=(char*)env->GetStringUTFChars(jtype,NULL);
-		content.subtype=(char*)env->GetStringUTFChars(jsubtype,NULL);
-		content.encoding=jencoding ? (char*)env->GetStringUTFChars(jsubtype,NULL) : NULL;
-		content.data=(void*)env->GetByteArrayElements(jdata,NULL);
-		content.size=env->GetArrayLength(jdata);
-	}
+	err=linphone_event_update_subscribe(ev,linphone_content_get_type(&content) ? &content : NULL);
 
-	err=linphone_event_update_subscribe(ev,content.type ? LINPHONE_CONTENT(&content) : NULL);
-
-	if (jtype){
-		env->ReleaseStringUTFChars(jtype,content.type);
-		env->ReleaseStringUTFChars(jsubtype,content.subtype);
-		if (jencoding) env->ReleaseStringUTFChars(jencoding,content.encoding);
-		env->ReleaseByteArrayElements(jdata,(jbyte*)content.data,JNI_ABORT);
-	}
 	return err;
 }
 
@@ -5033,26 +4965,12 @@ JNIEXPORT jint JNICALL Java_org_linphone_core_LinphoneEventImpl_updateSubscribe(
  * Signature: (JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;)I
  */
 JNIEXPORT jint JNICALL Java_org_linphone_core_LinphoneEventImpl_updatePublish(JNIEnv *env, jobject jobj, jlong evptr, jstring jtype, jstring jsubtype, jbyteArray jdata, jstring jencoding){
-	LinphoneContentPrivate content={0};
+	LinphoneContent content={0};
 	LinphoneEvent *ev=(LinphoneEvent*)evptr;
 	jint err;
 
-	if (jtype){
-		content.type=(char*)env->GetStringUTFChars(jtype,NULL);
-		content.subtype=(char*)env->GetStringUTFChars(jsubtype,NULL);
-		content.encoding=jencoding ? (char*)env->GetStringUTFChars(jsubtype,NULL) : NULL;
-		content.data=(void*)env->GetByteArrayElements(jdata,NULL);
-		content.size=env->GetArrayLength(jdata);
-	}
+        err=linphone_event_update_publish(ev,linphone_content_get_type(&content) ? &content : NULL);
 
-	err=linphone_event_update_publish(ev,content.type ? LINPHONE_CONTENT(&content) : NULL);
-
-	if (jtype){
-		env->ReleaseStringUTFChars(jtype,content.type);
-		env->ReleaseStringUTFChars(jsubtype,content.subtype);
-		if (jencoding) env->ReleaseStringUTFChars(jencoding,content.encoding);
-		env->ReleaseByteArrayElements(jdata,(jbyte*)content.data,JNI_ABORT);
-	}
 	return err;
 }
 
@@ -5118,21 +5036,8 @@ JNIEXPORT jobject JNICALL Java_org_linphone_core_LinphoneCoreImpl_createSubscrib
 }
 
 JNIEXPORT void JNICALL Java_org_linphone_core_LinphoneEventImpl_sendSubscribe(JNIEnv *env, jobject thiz, jlong jevent, jstring jtype, jstring jsubtype, jbyteArray jdata, jstring jencoding) {
-	LinphoneContentPrivate content = {0};
-	if (jtype) {
-		content.type = (char*) env->GetStringUTFChars(jtype, NULL);
-		content.subtype = (char*) env->GetStringUTFChars(jsubtype, NULL);
-		content.encoding = jencoding ? (char*) env->GetStringUTFChars(jencoding, NULL) : NULL;
-		content.data = (void*) env->GetByteArrayElements(jdata, NULL);
-		content.size = env->GetArrayLength(jdata);
-	}
-	linphone_event_send_subscribe((LinphoneEvent*) jevent, content.type ? LINPHONE_CONTENT(&content) : NULL);
-	if (jtype) {
-		env->ReleaseStringUTFChars(jtype, content.type);
-		env->ReleaseStringUTFChars(jsubtype, content.subtype);
-		if (jencoding) env->ReleaseStringUTFChars(jencoding, content.encoding);
-		env->ReleaseByteArrayElements(jdata, (jbyte*) content.data, JNI_ABORT);
-	}
+	LinphoneContent content = {0};
+	linphone_event_send_subscribe((LinphoneEvent*) jevent, linphone_content_get_type(&content)? &content : NULL);
 }
 
 JNIEXPORT jobject JNICALL Java_org_linphone_core_LinphoneCoreImpl_createPublish(JNIEnv *env, jobject thiz, jlong jcore, jlong jaddr, jstring jeventname, jint expires) {
@@ -5151,21 +5056,10 @@ JNIEXPORT jobject JNICALL Java_org_linphone_core_LinphoneCoreImpl_createPublish(
 }
 
 JNIEXPORT void JNICALL Java_org_linphone_core_LinphoneEventImpl_sendPublish(JNIEnv *env, jobject thiz, jlong jevent, jstring jtype, jstring jsubtype, jbyteArray jdata, jstring jencoding) {
-	LinphoneContentPrivate content = {0};
-	if (jtype) {
-		content.type = (char*) env->GetStringUTFChars(jtype, NULL);
-		content.subtype = (char*) env->GetStringUTFChars(jsubtype, NULL);
-		content.encoding = jencoding ? (char*) env->GetStringUTFChars(jencoding, NULL) : NULL;
-		content.data = (void*) env->GetByteArrayElements(jdata, NULL);
-		content.size = env->GetArrayLength(jdata);
-	}
-	linphone_event_send_publish((LinphoneEvent*) jevent, content.type ? LINPHONE_CONTENT(&content) : NULL);
-	if (jtype) {
-		env->ReleaseStringUTFChars(jtype, content.type);
-		env->ReleaseStringUTFChars(jsubtype, content.subtype);
-		if (jencoding) env->ReleaseStringUTFChars(jencoding, content.encoding);
-		env->ReleaseByteArrayElements(jdata, (jbyte*) content.data, JNI_ABORT);
-	}
+	LinphoneContent content = {0};
+        linphone_event_send_publish((LinphoneEvent*) jevent, linphone_content_get_type(&content)? &content : NULL);
+
+
 }
 
 JNIEXPORT void JNICALL Java_org_linphone_core_LinphoneEventImpl_addCustomHeader(JNIEnv *env, jobject thiz, jlong jevent, jstring jname, jstring jvalue) {