NPE fix for Acorn cluster stream undo handling

[simantics/platform.git] / bundles / org.simantics.acorn / src / org / simantics / acorn / internal / ClusterUpdateProcessor.java

diff --git a/bundles/org.simantics.acorn/src/org/simantics/acorn/internal/ClusterUpdateProcessor.java b/bundles/org.simantics.acorn/src/org/simantics/acorn/internal/ClusterUpdateProcessor.java
index d4381aeca4e9610f1ee4e9fdf138e3f4cea1f99c..2885338c706d469207ef5c27a7494907365f4bc5 100644 (file)
--- a/bundles/org.simantics.acorn/src/org/simantics/acorn/internal/ClusterUpdateProcessor.java
+++ b/bundles/org.simantics.acorn/src/org/simantics/acorn/internal/ClusterUpdateProcessor.java
@@ -76,11 +76,16 @@ public class ClusterUpdateProcessor extends ClusterUpdateProcessorBase {
 
        }
 
+       @Override
+       void setImmutable(boolean value) {
+               cluster.setImmutable(value, support);
+       }
+
        public ClusterImpl process(ClusterImpl cluster) throws IllegalAcornStateException {
                this.cluster = cluster;
                process();
                info.finish();
                return this.cluster;
        }
-       
+
 }