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-rw-r--r--src/org/traccar/database/QueryBuilder.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/org/traccar/database/QueryBuilder.java b/src/org/traccar/database/QueryBuilder.java
index 5a4948de0..9972bb74d 100644
--- a/src/org/traccar/database/QueryBuilder.java
+++ b/src/org/traccar/database/QueryBuilder.java
@@ -396,7 +396,7 @@ public final class QueryBuilder {
@Override
public void process(T object, ResultSet resultSet) throws SQLException {
String value = resultSet.getString(name);
- if (value != null) {
+ if (value != null && !value.isEmpty()) {
try {
method.invoke(object, Context.getObjectMapper().readValue(value, parameterType));
} catch (InvocationTargetException | IllegalAccessException | IOException error) {