X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2FAlignment.java;h=bd7882730794699965bb12d96069b1b98bb230f9;hb=dc4e35ab621a97c049f89ea9aa6d19737179139e;hp=2f64759767b686e1786bf86d5695e99a799aa9b3;hpb=0d9271962a4c5e720ec8284d579bda635b59b231;p=jalview.git

diff --git a/src/jalview/datamodel/Alignment.java b/src/jalview/datamodel/Alignment.java
index 2f64759..bd78827 100755
--- a/src/jalview/datamodel/Alignment.java
+++ b/src/jalview/datamodel/Alignment.java
@@ -24,6 +24,7 @@ import jalview.analysis.AlignmentUtils;
 import jalview.datamodel.AlignedCodonFrame.SequenceToSequenceMapping;
 import jalview.io.FastaFile;
 import jalview.util.Comparison;
+import jalview.util.LinkedIdentityHashSet;
 import jalview.util.MessageManager;
 
 import java.util.ArrayList;
@@ -290,13 +291,23 @@ public class Alignment implements AlignmentI
   }
 
   @Override
-  public void finalize()
+  public void finalize() throws Throwable
   {
     if (getDataset() != null)
     {
       getDataset().removeAlignmentRef();
     }
 
+    nullReferences();
+    super.finalize();
+  }
+
+  /**
+   * Defensively nulls out references in case this object is not garbage
+   * collected
+   */
+  void nullReferences()
+  {
     dataset = null;
     sequences = null;
     groups = null;
@@ -305,14 +316,16 @@ public class Alignment implements AlignmentI
   }
 
   /**
-   * decrement the alignmentRefs counter by one and call finalize if it goes to
-   * zero.
+   * decrement the alignmentRefs counter by one and null references if it goes
+   * to zero.
+   * 
+   * @throws Throwable
    */
-  private void removeAlignmentRef()
+  private void removeAlignmentRef() throws Throwable
   {
     if (--alignmentRefs == 0)
     {
-      finalize();
+      nullReferences();
     }
   }
 
@@ -648,7 +661,7 @@ public class Alignment implements AlignmentI
    * jalview.datamodel.AlignmentI#findIndex(jalview.datamodel.SearchResults)
    */
   @Override
-  public int findIndex(SearchResults results)
+  public int findIndex(SearchResultsI results)
   {
     int i = 0;
 
@@ -1042,6 +1055,7 @@ public class Alignment implements AlignmentI
   private void resolveAndAddDatasetSeq(SequenceI currentSeq,
           Set<SequenceI> seqs, boolean createDatasetSequence)
   {
+    SequenceI alignedSeq = currentSeq;
     if (currentSeq.getDatasetSequence() != null)
     {
       currentSeq = currentSeq.getDatasetSequence();
@@ -1076,12 +1090,19 @@ public class Alignment implements AlignmentI
         {
           if (dbr.getMap() != null && dbr.getMap().getTo() != null)
           {
+            if (dbr.getMap().getTo() == alignedSeq)
+            {
+              /*
+               * update mapping to be to the newly created dataset sequence
+               */
+              dbr.getMap().setTo(currentSeq);
+            }
             if (dbr.getMap().getTo().getDatasetSequence() != null)
             {
-              throw new Error("Implementation error: Map.getTo() for dbref"
-                      + dbr + " is not a dataset sequence.");
-              // TODO: if this happens, could also rewrite the reference to
-              // point to new dataset sequence
+              throw new Error(
+                      "Implementation error: Map.getTo() for dbref " + dbr
+                              + " from " + curDs.getName()
+                              + " is not a dataset sequence.");
             }
             // we recurse to add all forward references to dataset sequences via
             // DBRefs/etc
@@ -1103,7 +1124,7 @@ public class Alignment implements AlignmentI
       return;
     }
     // try to avoid using SequenceI.equals at this stage, it will be expensive
-    Set<SequenceI> seqs = new jalview.util.LinkedIdentityHashSet<SequenceI>();
+    Set<SequenceI> seqs = new LinkedIdentityHashSet<SequenceI>();
 
     for (int i = 0; i < getHeight(); i++)
     {