JAL-1443 data validation for empty content before loading alignment from file or...

[jalview.git] / src / jalview / gui / CutAndPasteTransfer.java

diff --git a/src/jalview/gui/CutAndPasteTransfer.java b/src/jalview/gui/CutAndPasteTransfer.java
index e663cf8..979d1aa 100644 (file)
--- a/src/jalview/gui/CutAndPasteTransfer.java
+++ b/src/jalview/gui/CutAndPasteTransfer.java
@@ -195,7 +195,13 @@ public class CutAndPasteTransfer extends GCutAndPasteTransfer
    */
   public void ok_actionPerformed(ActionEvent e)
   {
-    String format = new IdentifyFile().Identify(getText(), "Paste");
+    String text = getText();
+    if (text.trim().length() < 1)
+    {
+      return;
+    }
+
+    String format = new IdentifyFile().Identify(text, "Paste");
     // TODO: identify feature, annotation or tree file and parse appropriately.
     AlignmentI al = null;