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-rw-r--r--pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/configuration/SimpleConfigurationComposite.java2
1 files changed, 2 insertions, 0 deletions
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/configuration/SimpleConfigurationComposite.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/configuration/SimpleConfigurationComposite.java
index 167d50ea..ea26cd9a 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/configuration/SimpleConfigurationComposite.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/configuration/SimpleConfigurationComposite.java
@@ -438,6 +438,8 @@ public class SimpleConfigurationComposite extends ConfigurationCompositeBase {
return;
this.getDisplay().syncExec(() -> {
+ if (this.isDisposed())
+ return;
if (this.sigPreviewParam != param)
return;
if (this.sigPreview != null)