X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.acorn%2Fsrc%2Forg%2Fsimantics%2Facorn%2FHeadState.java;fp=bundles%2Forg.simantics.acorn%2Fsrc%2Forg%2Fsimantics%2Facorn%2FHeadState.java;h=fd38bc98542052bbdb2e762c65d49a4cad4f3585;hp=dd8703c1fc689e0ed0bbfc1968e6730913d74750;hb=4cfeb52c28469fdfb6d8b07bac43394bac684e7f;hpb=74de2d9be56f36e925a0a5818f4b11a766812cff

diff --git a/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java b/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java
index dd8703c1f..fd38bc985 100644
--- a/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java
+++ b/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java
@@ -12,6 +12,7 @@ import java.util.Arrays;
 
 import org.simantics.acorn.exception.InvalidHeadStateException;
 import org.simantics.databoard.Bindings;
+import org.simantics.databoard.adapter.AdapterConstructionException;
 import org.simantics.databoard.binding.mutable.MutableVariant;
 import org.simantics.databoard.serialization.Serializer;
 import org.simantics.databoard.util.binary.BinaryMemory;
@@ -31,6 +32,8 @@ public class HeadState {
     public ArrayList<String> cs = new ArrayList<>();
 //    public ArrayList<String> ccs = new ArrayList<String>();
 
+    public long tailChangeSetId = 1;
+
     public static HeadState load(Path directory) throws InvalidHeadStateException {
         Path f = directory.resolve(HEAD_STATE);
         
@@ -51,6 +54,11 @@ public class HeadState {
                 return object;
             }
         } catch (IOException i) {
+        	Throwable cause = i.getCause();
+        	if(cause instanceof AdapterConstructionException) {
+        		HeadState1 old = HeadState1.load(directory);
+        		return old.migrate();
+        	}
             return new HeadState();
 //            throw new InvalidHeadStateException(i);
         } catch (NoSuchAlgorithmException e) {