fix visible NPE

Author: shydesky

framework/src/main/java/org/tron/core/services/http/TransferAssetServlet.java

@@ -37,7 +37,7 @@ protected void doPost(HttpServletRequest request, HttpServletResponse response)
           .getInstance();
       JSONObject jsonObject = JSONObject.parseObject(contract);
       tx = Util.setTransactionPermissionId(jsonObject, tx);
-      tx = Util.setTransactionExtraData(jsonObject, tx);
+      tx = Util.setTransactionExtraData(jsonObject, tx, visible);
       response.getWriter().println(Util.printCreateTransaction(tx, visible));
     } catch (Exception e) {
       Util.processError(e, response);

framework/src/main/java/org/tron/core/services/http/TransferServlet.java

@@ -36,7 +36,7 @@ protected void doPost(HttpServletRequest request, HttpServletResponse response)
           .getInstance();
       JSONObject jsonObject = JSONObject.parseObject(contract);
       tx = Util.setTransactionPermissionId(jsonObject, tx);
-      tx = Util.setTransactionExtraData(jsonObject, tx);
+      tx = Util.setTransactionExtraData(jsonObject, tx, visible);
       response.getWriter().println(Util.printCreateTransaction(tx, visible));
     } catch (Exception e) {
       Util.processError(e, response);

framework/src/main/java/org/tron/core/services/http/TriggerConstantContractServlet.java

@@ -84,7 +84,7 @@ protected void doPost(HttpServletRequest request, HttpServletResponse response)
               trxExtBuilder,
               retBuilder);
       trx = Util.setTransactionPermissionId(jsonObject, trx);
-      trx = Util.setTransactionExtraData(jsonObject, trx);
+      trx = Util.setTransactionExtraData(jsonObject, trx, visible);
       trxExtBuilder.setTransaction(trx);
       retBuilder.setResult(true).setCode(response_code.SUCCESS);
     } catch (ContractValidateException e) {

framework/src/main/java/org/tron/core/services/http/Util.java

@@ -347,12 +347,12 @@ public static Transaction setTransactionPermissionId(JSONObject jsonObject,
   }
 
   public static Transaction setTransactionExtraData(JSONObject jsonObject,
-      Transaction transaction) {
+      Transaction transaction, boolean visible) {
     if (jsonObject.containsKey(EXTRA_DATA)) {
       String data = jsonObject.getString(EXTRA_DATA);
       if (data.length() > 0) {
         Transaction.raw.Builder raw = transaction.getRawData().toBuilder();
-        if (getVisibleOnlyForSign(jsonObject)) {
+        if (visible) {
           raw.setData(ByteString.copyFrom(data.getBytes()));
         } else {
           raw.setData(ByteString.copyFrom(ByteArray.fromHexString(data)));