Fixed crashbug in ActiveInstructionPreviewContentProvider

[Mograsim.git] / plugins / net.mograsim.plugin.core / src / net / mograsim / plugin / tables / mi / ActiveInstructionPreviewContentProvider.java

diff --git a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
index d3a14ec..97fbd19 100644 (file)
--- a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
+++ b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
@@ -56,6 +56,7 @@ public class ActiveInstructionPreviewContentProvider implements InstructionTable
        @Override
        public void updateElement(int index)
        {
-               viewer.replace(activeRow, index);
+               if (activeRow != null)
+                       viewer.replace(activeRow, index);
        }
 }