Synchronize methods in SurfaceDensitySet too

With this running "neuorord -Dneurord.trials=3 -t 1000" in a loop finally does not cause an error (in ~2000 repetitions).
neurord · Aug 2, 2016 · 3f874ee · 3f874ee
1 parent 082b285
commit 3f874ee
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Showing 2 changed files with 6 additions and 6 deletions.
diff --git a/src/main/java/neurord/model/InitialConditions.java b/src/main/java/neurord/model/InitialConditions.java
@@ -114,8 +114,8 @@ public double[] getRegionSurfaceDensities(String rnm, String[] spl) {
 
 
     public String[] getTotalPreserved() {
-        if (fitConstraints != null)
-            return fitConstraints.getTotalPreserved();
+        if (this.fitConstraints != null)
+            return this.fitConstraints.getTotalPreserved();
         else
             return new String[0];
     }

diff --git a/src/main/java/neurord/model/SurfaceDensitySet.java b/src/main/java/neurord/model/SurfaceDensitySet.java
@@ -20,11 +20,11 @@ public class SurfaceDensitySet implements Regional {
 
     transient HashMap<String, PicoSD> sdHM;
 
-    public HashMap<String, PicoSD> getSurfaceDensityHM() {
-        if (sdHM == null) {
-            sdHM = new HashMap<>();
+    public synchronized HashMap<String, PicoSD> getSurfaceDensityHM() {
+        if (this.sdHM == null) {
+            this.sdHM = new HashMap<>();
             if (sds != null)
-                for (PicoSD sd : sds)
+                for (PicoSD sd: sds)
                     sdHM.put(sd.specieID, sd);
         }
         return sdHM;