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JAL-4027 JAL-3858 rename CUSTOM_RENDERER to CONTACT_MATRIX annotation.graph type...
[jalview.git] / src / jalview / datamodel / ContactMatrix.java
diff --git a/src/jalview/datamodel/ContactMatrix.java b/src/jalview/datamodel/ContactMatrix.java
index 35ec87b..b4f7c07 100644 (file)
--- a/src/jalview/datamodel/ContactMatrix.java
+++ b/src/jalview/datamodel/ContactMatrix.java
@@ -3,7 +3,7 @@ package jalview.datamodel;
 import java.util.ArrayList;
 import java.util.List;
 
-public class ContactMatrix implements ContactMatrixI
+public abstract class ContactMatrix implements ContactMatrixI
 {
   /**
    * are contacts reflexive ?