From c78b3a3478bbedd84ff2fac13a2577a6e1793ec3 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Fri, 8 Jul 2016 19:55:44 +1200
Subject: Add null check to query builder

---
 src/org/traccar/database/QueryBuilder.java | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'src/org/traccar/database')

diff --git a/src/org/traccar/database/QueryBuilder.java b/src/org/traccar/database/QueryBuilder.java
index c5a682b7e..73569ac2a 100644
--- a/src/org/traccar/database/QueryBuilder.java
+++ b/src/org/traccar/database/QueryBuilder.java
@@ -357,10 +357,13 @@ public final class QueryBuilder {
             processors.add(new ResultSetProcessor<T>() {
                 @Override
                 public void process(T object, ResultSet resultSet) throws SQLException {
-                    try (JsonReader reader = Json.createReader(new StringReader(resultSet.getString(name)))) {
-                        method.invoke(object, MiscFormatter.fromJson(reader.readObject()));
-                    } catch (IllegalAccessException | InvocationTargetException | JsonParsingException error) {
-                        Log.warning(error);
+                    String value = resultSet.getString(name);
+                    if (value != null) {
+                        try (JsonReader reader = Json.createReader(new StringReader(value))) {
+                            method.invoke(object, MiscFormatter.fromJson(reader.readObject()));
+                        } catch (IllegalAccessException | InvocationTargetException | JsonParsingException error) {
+                            Log.warning(error);
+                        }
                     }
                 }
             });
-- 
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