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-rw-r--r--pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/MobileBKUEnterTANComposite.java6
1 files changed, 6 insertions, 0 deletions
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/MobileBKUEnterTANComposite.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/MobileBKUEnterTANComposite.java
index 66063a62..7bda7fc4 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/MobileBKUEnterTANComposite.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/MobileBKUEnterTANComposite.java
@@ -72,6 +72,12 @@ public class MobileBKUEnterTANComposite extends StateComposite {
tan = tan.trim();
+ if (tan.isEmpty()) {
+ MobileBKUEnterTANComposite.this.setMessage(Messages
+ .getString("error.NoTan")); //$NON-NLS-1$
+ return;
+ }
+
if (MobileBKUEnterTANComposite.this.refVal.startsWith(tan)) {
MobileBKUEnterTANComposite.this.setMessage(Messages
.getString("error.EnteredReferenceValue")); //$NON-NLS-1$