X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fworkers%2FAlignCalcManager.java;h=08ef3a27d4ba823888c260ef3558c30f31285716;hb=20ca25437594cfb22689e45641c683681e400e07;hp=191e8c7da89e6b3ee42ba81fc99641bc665354db;hpb=f8e603128476ca6e093ea2fc65435d1294978c53;p=jalview.git

diff --git a/src/jalview/workers/AlignCalcManager.java b/src/jalview/workers/AlignCalcManager.java
index 191e8c7..08ef3a2 100644
--- a/src/jalview/workers/AlignCalcManager.java
+++ b/src/jalview/workers/AlignCalcManager.java
@@ -68,12 +68,12 @@ public class AlignCalcManager implements AlignCalcManagerI
   {
     restartable = Collections
             .synchronizedList(new ArrayList<AlignCalcWorkerI>());
-    blackList = Collections
-            .synchronizedList(new ArrayList<Class<? extends AlignCalcWorkerI>>());
+    blackList = Collections.synchronizedList(
+            new ArrayList<Class<? extends AlignCalcWorkerI>>());
     inProgress = Collections
             .synchronizedList(new ArrayList<AlignCalcWorkerI>());
-    updating = Collections
-            .synchronizedMap(new Hashtable<Class<? extends AlignCalcWorkerI>, List<AlignCalcWorkerI>>());
+    updating = Collections.synchronizedMap(
+            new Hashtable<Class<? extends AlignCalcWorkerI>, List<AlignCalcWorkerI>>());
     canUpdate = new HashSet<AlignCalcWorkerI>();
   }
 
@@ -85,10 +85,8 @@ public class AlignCalcManager implements AlignCalcManagerI
       List<AlignCalcWorkerI> upd = updating.get(worker.getClass());
       if (upd == null)
       {
-        updating.put(
-                worker.getClass(),
-                upd = Collections
-                        .synchronizedList(new ArrayList<AlignCalcWorkerI>()));
+        updating.put(worker.getClass(), upd = Collections
+                .synchronizedList(new ArrayList<AlignCalcWorkerI>()));
       }
       synchronized (upd)
       {
@@ -131,8 +129,7 @@ public class AlignCalcManager implements AlignCalcManagerI
     {
       if (inProgress.contains(worker))
       {
-        System.err.println("Implementation error: duplicate run of worker "
-                + worker);
+        return false; // worker is already working, so ask caller to wait around
       }
       else
       {
@@ -236,7 +233,8 @@ public class AlignCalcManager implements AlignCalcManagerI
   }
 
   @Override
-  public boolean workingInvolvedWith(AlignmentAnnotation alignmentAnnotation)
+  public boolean workingInvolvedWith(
+          AlignmentAnnotation alignmentAnnotation)
   {
     synchronized (inProgress)
     {