Index: CPManagedConnectionFactory.java
===================================================================
--- CPManagedConnectionFactory.java	(revision 38253)
+++ CPManagedConnectionFactory.java	(working copy)
@@ -147,8 +147,17 @@
 
         mc.initializeConnectionType(ManagedConnection.ISPOOLEDCONNECTION);
 
-        //GJCINT
-        validateAndSetIsolation(mc);
+        try {
+            //GJCINT
+            validateAndSetIsolation(mc);
+        } catch (ResourceException re) {
+            try {
+                mc.destroy();
+            } catch (ResourceException e) {
+                // Ignore exception in destroying managed connection
+            }
+            throw re;
+        }
         return mc;
     }
 
Index: DMManagedConnectionFactory.java
===================================================================
--- DMManagedConnectionFactory.java	(revision 38253)
+++ DMManagedConnectionFactory.java	(working copy)
@@ -160,9 +160,17 @@
         com.sun.gjc.spi.ManagedConnection mc = constructManagedConnection(
                 null, dsConn, pc, this);
 
-        //GJCINT
-        setIsolation(mc);
-        isValid(mc);
+        try {
+            //GJCINT
+            validateAndSetIsolation(mc);
+        } catch (ResourceException re) {
+            try {
+                mc.destroy();
+            } catch (ResourceException e) {
+                // Ignore exception in destroying managed connection
+            }
+            throw re;
+        }
         return mc;
     }
 
Index: DSManagedConnectionFactory.java
===================================================================
--- DSManagedConnectionFactory.java	(revision 38253)
+++ DSManagedConnectionFactory.java	(working copy)
@@ -125,8 +125,17 @@
 
         ManagedConnection mc = constructManagedConnection(null, dsConn, pc, this);
 
-        //GJCINT
-        validateAndSetIsolation(mc);
+        try {
+            //GJCINT
+            validateAndSetIsolation(mc);
+        } catch (ResourceException re) {
+            try {
+                mc.destroy();
+            } catch (ResourceException e) {
+                // Ignore exception in destroying managed connection
+            }
+            throw re;
+        }
         return mc;
     }
 
Index: XAManagedConnectionFactory.java
===================================================================
--- XAManagedConnectionFactory.java	(revision 38253)
+++ XAManagedConnectionFactory.java	(working copy)
@@ -126,8 +126,17 @@
                 xaConn, null, pc, this);
 
         mc.initializeConnectionType(ManagedConnection.ISXACONNECTION);
-        //GJCINT
-        validateAndSetIsolation(mc);
+        try {
+            //GJCINT
+            validateAndSetIsolation(mc);
+        } catch (ResourceException re) {
+            try {
+                mc.destroy();
+            } catch (ResourceException e) {
+                // Ignore exception in destroying managed connection
+            }
+            throw re;
+        }
         return mc;
     }