From 9a5775f4029a7b9d72c9ecd3fe5955802453476d Mon Sep 17 00:00:00 2001
From: Hussein Kasem <huss@pep-project.org>
Date: Mon, 5 Nov 2018 20:58:52 +0100
Subject: [PATCH] Change runtime exception by error code.

---
 src/org/pEp/jniadapter/AbstractEngine.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/org/pEp/jniadapter/AbstractEngine.java b/src/org/pEp/jniadapter/AbstractEngine.java
index ceda89d..ef49c6d 100644
--- a/src/org/pEp/jniadapter/AbstractEngine.java
+++ b/src/org/pEp/jniadapter/AbstractEngine.java
@@ -156,7 +156,7 @@ abstract class AbstractEngine implements AutoCloseable {
         if (needsFastPollCallback != null) {
             needsFastPollCallback.needsFastPollCallFromC(fast_poll_needed);
         } else {
-            throw new RuntimeException("Callback not set");
+            return -1;
         }
         return 0;
     }
@@ -168,7 +168,7 @@ abstract class AbstractEngine implements AutoCloseable {
         if (notifyHandshakeCallback != null) {
             notifyHandshakeCallback.notifyHandshake(myself, partner, _signal);
         } else {
-            throw new RuntimeException("Callback not set");
+           return -1;
         }
         return 0;
     }
@@ -177,7 +177,7 @@ abstract class AbstractEngine implements AutoCloseable {
         if (messageToSendCallback != null) {
             messageToSendCallback.messageToSend(message);
         } else {
-            throw new RuntimeException("Callback not set");
+           return -1;
         }
         return 0;
     }