5 files changed, 11 insertions, 9 deletions
diff --git a/src/jvm/clojure/lang/PersistentArrayMap.java b/src/jvm/clojure/lang/PersistentArrayMap.java
index 7b7eda58..75ebe964 100644
--- a/src/jvm/clojure/lang/PersistentArrayMap.java
+++ b/src/jvm/clojure/lang/PersistentArrayMap.java
@@ -269,7 +269,7 @@ public ITransientMap asTransient(){
 static final class TransientArrayMap extends ATransientMap {
 	int len;
 	final Object[] array;
-	final Thread owner;
+	Thread owner;
 
 	public TransientArrayMap(Object[] array){
 		this.owner = Thread.currentThread();
@@ -330,6 +330,8 @@ static final class TransientArrayMap extends ATransientMap {
 	}
 	
 	IPersistentMap doPersistent(){
+		ensureEditable();
+		owner = null;
 		Object[] a = new Object[len];
 		System.arraycopy(array,0,a,0,len);
 		return new PersistentArrayMap(a);
@@ -339,8 +341,8 @@ static final class TransientArrayMap extends ATransientMap {
 		if(owner == Thread.currentThread())
 			return;
 		if(owner != null)
-			throw new IllegalAccessError("Mutable used by non-owner thread");
-		throw new IllegalAccessError("Mutable used after immutable call");
+			throw new IllegalAccessError("Transient used by non-owner thread");
+		throw new IllegalAccessError("Transient used after persistent! call");
 	}
 }
 }
diff --git a/src/jvm/clojure/lang/PersistentHashMap.java b/src/jvm/clojure/lang/PersistentHashMap.java
index 5f5f5404..1f223e61 100644
--- a/src/jvm/clojure/lang/PersistentHashMap.java
+++ b/src/jvm/clojure/lang/PersistentHashMap.java
@@ -270,8 +270,8 @@ static final class TransientHashMap extends ATransientMap {
 		if(owner == Thread.currentThread())
 			return;
 		if(owner != null)
-			throw new IllegalAccessError("Mutable used by non-owner thread");
-		throw new IllegalAccessError("Mutable used after immutable call");
+			throw new IllegalAccessError("Transient used by non-owner thread");
+		throw new IllegalAccessError("Transient used after persistent! call");
 	}
 }
 
diff --git a/src/jvm/clojure/lang/PersistentTreeMap.java b/src/jvm/clojure/lang/PersistentTreeMap.java
index 5a5a9bee..d69952b9 100644
--- a/src/jvm/clojure/lang/PersistentTreeMap.java
+++ b/src/jvm/clojure/lang/PersistentTreeMap.java
@@ -137,7 +137,7 @@ public ISeq seq(){
 }
 
 public IPersistentCollection empty(){
-	return EMPTY.withMeta(meta());	
+	return new PersistentTreeMap(meta(), comp);	
 }
 
 public ISeq rseq() throws Exception{
diff --git a/src/jvm/clojure/lang/PersistentTreeSet.java b/src/jvm/clojure/lang/PersistentTreeSet.java
index d0f15d57..22979f11 100644
--- a/src/jvm/clojure/lang/PersistentTreeSet.java
+++ b/src/jvm/clojure/lang/PersistentTreeSet.java
@@ -53,7 +53,7 @@ public IPersistentSet cons(Object o){
 }
 
 public IPersistentCollection empty(){
-	return EMPTY.withMeta(meta());	
+	return new PersistentTreeSet(meta(),(PersistentTreeMap)impl.empty());
 }
 
 public ISeq rseq() throws Exception{
diff --git a/src/jvm/clojure/lang/PersistentVector.java b/src/jvm/clojure/lang/PersistentVector.java
index 2d55e2e8..392599c9 100644
--- a/src/jvm/clojure/lang/PersistentVector.java
+++ b/src/jvm/clojure/lang/PersistentVector.java
@@ -402,8 +402,8 @@ static final class TransientVector extends AFn implements ITransientVector, Coun
 		if(owner == Thread.currentThread())
 			return;
 		if(owner != null)
-			throw new IllegalAccessError("Mutable used by non-owner thread");
-		throw new IllegalAccessError("Mutable used after immutable call");
+			throw new IllegalAccessError("Transient used by non-owner thread");
+		throw new IllegalAccessError("Transient used after persistent! call");
 
 //		root = editableRoot(root);
 //		tail = editableTail(tail);