diff --git a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java
index 9cd7312265..c7e9ce2b33 100644
--- a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java
+++ b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java
@@ -2579,11 +2579,11 @@ private void writeSqlVariant(TDSWriter tdsWriter, Object colValue, ResultSet sou
                 break;
 
             case TIMEN:
-                bulkScale = variantType.getScale();
+                int timeBulkScale = variantType.getScale();
                 int timeHeaderLength = 0x08; // default
-                if (2 >= bulkScale) {
+                if (2 >= timeBulkScale) {
                     timeHeaderLength = 0x06;
-                } else if (4 >= bulkScale) {
+                } else if (4 >= timeBulkScale) {
                     timeHeaderLength = 0x07;
                 } else {
                     timeHeaderLength = 0x08;
@@ -2595,8 +2595,8 @@ private void writeSqlVariant(TDSWriter tdsWriter, Object colValue, ResultSet sou
                                                                                                                  // header
                                                                                                                  // length
                 // defers
-                tdsWriter.writeByte((byte) bulkScale);
-                tdsWriter.writeTime((java.sql.Timestamp) colValue, bulkScale);
+                tdsWriter.writeByte((byte) timeBulkScale);
+                tdsWriter.writeTime((java.sql.Timestamp) colValue, timeBulkScale);
                 break;
 
             case DATETIME8:
diff --git a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java
index da953b1471..86998e04a7 100644
--- a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java
+++ b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java
@@ -538,7 +538,7 @@ public void setUseBulkCopyForBatchInsert(boolean useBulkCopyForBatchInsert) {
     private boolean sendTimeAsDatetime = SQLServerDriverBooleanProperty.SEND_TIME_AS_DATETIME.getDefaultValue();
 
     @Override
-    public synchronized final boolean getSendTimeAsDatetime() {
+    public final boolean getSendTimeAsDatetime() {
         return !isKatmaiOrLater() || sendTimeAsDatetime;
     }
 
@@ -3132,7 +3132,7 @@ public void abort(Executor executor) throws SQLException {
 
         setState(State.Closed);
 
-        if (null != tdsChannel)
+        if (null != tdsChannel && null != executor)
             executor.execute(() -> tdsChannel.close());
 
         loggerExternal.exiting(getClassNameLogging(), "abort");
diff --git a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java
index 1fee0d92e1..b389677b9c 100644
--- a/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java
+++ b/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnectionPoolProxy.java
@@ -509,7 +509,7 @@ public java.util.UUID getClientConnectionId() throws SQLServerException {
     }
 
     @Override
-    public synchronized void setSendTimeAsDatetime(boolean sendTimeAsDateTimeValue) throws SQLServerException {
+    public void setSendTimeAsDatetime(boolean sendTimeAsDateTimeValue) throws SQLServerException {
         checkClosed();
         wrappedConnection.setSendTimeAsDatetime(sendTimeAsDateTimeValue);
     }