trying to fix failing travis build 2

Author: doom369

pom.xml

@@ -27,6 +27,14 @@
         <module>integration-tests</module>
     </modules>
 
+    <!-- for QR gen tool -->
+    <repositories>
+        <repository>
+            <id>jitpack.io</id>
+            <url>https://jitpack.io</url>
+        </repository>
+    </repositories>
+
     <build>
         <plugins>
             <plugin>
@@ -36,8 +44,6 @@
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>
-                    <!-- this is to avoid travis build failure on old machines with JDK bugs -->
-                    <useIncrementalCompilation>false</useIncrementalCompilation>
                 </configuration>
             </plugin>
 
@@ -104,7 +110,7 @@
         <commons-validator.version>1.5.0</commons-validator.version>
         <postgresql.version>9.4.1208</postgresql.version>
         <HikariCP.version>2.4.7</HikariCP.version>
-        <qrgen.version>2.1.0</qrgen.version>
+        <qrgen.version>2.2.0</qrgen.version>
 
         <!-- test versions -->
         <commons-lang3.version>3.4</commons-lang3.version>

server/http-api/src/main/java/cc/blynk/server/api/http/logic/HttpAPILogic.java

@@ -39,7 +39,6 @@
 
 import javax.ws.rs.*;
 import javax.ws.rs.core.MediaType;
-import java.io.IOException;
 import java.util.Base64;
 
 import static cc.blynk.core.http.Response.*;
@@ -228,8 +227,8 @@ public Response updateWidgetPinData(@PathParam("token") String token) {
             String qrData = "bp1" + Base64.getEncoder().encodeToString(compressed);
             byte[] qrDataBinary = QRCode.from(qrData).to(ImageType.PNG).withSize(500, 500).stream().toByteArray();
             return ok(qrDataBinary, "image/png");
-        } catch (IOException ioe) {
-            log.error("Error generating QR.", ioe);
+        } catch (Exception e) {
+            log.error("Error generating QR. Reason : {}", e.getMessage());
             return Response.badRequest("Error generating QR.");
         }
     }