Fixed exception type to SQLFeatureNotSupported

src/main/java/com/microsoft/sqlserver/jdbc/SQLServerConnection.java

@@ -22,6 +22,7 @@
 import java.sql.ResultSet;
 import java.sql.SQLClientInfoException;
 import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
 import java.sql.SQLPermission;
 import java.sql.SQLWarning;
 import java.sql.SQLXML;
@@ -7196,7 +7197,9 @@ public PreparedStatement prepareStatement(String sql, String[] columnNames,
     @Override
     public void releaseSavepoint(Savepoint savepoint) throws SQLException {
         loggerExternal.entering(loggingClassName, "releaseSavepoint", savepoint);
-        SQLServerException.throwNotSupportedException(this, null);
+        MessageFormat form = new MessageFormat(SQLServerException.getErrString("R_featureNotSupported"));
+        Object[] msgArgs = {"releaseSavepoint"};
+        throw new SQLFeatureNotSupportedException(form.format(msgArgs));
     }
 
     final private Savepoint setNamedSavepoint(String sName) throws SQLServerException {

src/test/java/com/microsoft/sqlserver/jdbc/TestResource.java

@@ -216,5 +216,6 @@ protected Object[][] getContents() {
             {"R_expectedClassDoesNotMatchActualClass",
                     "Expected column class {0} does not match actual column class {1} for column {2}."},
             {"R_loginFailedMI", "Login failed for user '<token-identified principal>'"},
-            {"R_MInotAvailable", "Managed Identity authentication is not available"},};
+            {"R_MInotAvailable", "Managed Identity authentication is not available"},
+            {"R_featureNotSupported", "{0} is not supported."},};
 }

src/test/java/com/microsoft/sqlserver/jdbc/unit/SavepointTest.java

@@ -4,15 +4,16 @@
  */
 package com.microsoft.sqlserver.jdbc.unit;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.sql.Connection;
 import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
 import java.text.MessageFormat;
 
-import com.microsoft.sqlserver.jdbc.TestUtils;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
@@ -136,4 +137,27 @@ public void testSavePointWithAutoCommit() throws SQLException {
             } catch (SQLException e) {}
         }
     }
+
+    /**
+     * Test releaseSavepoint.
+     *
+     * @throws SQLException
+     */
+    @Test
+    public void testReleaseSavepoint() throws SQLException {
+        try (Connection connection = getConnection()) {
+            try {
+                connection.releaseSavepoint(null);
+            } catch (SQLException e) {
+                assertEquals(e.getClass(), SQLFeatureNotSupportedException.class, "Expected exception type " + SQLFeatureNotSupportedException.class.getName() + ", but received " + e.getClass().getName());
+
+                MessageFormat form = new MessageFormat(TestResource.getResource("R_featureNotSupported"));
+                Object[] msgArgs = {"releaseSavepoint"};
+                String expectedExceptionMsg = form.format(msgArgs);
+                String receivedExceptionMsg = e.getMessage();
+                assertEquals(expectedExceptionMsg, receivedExceptionMsg, "Expected exception message " + expectedExceptionMsg + ", but received " + receivedExceptionMsg);;
+            }
+        }
+    }
+
 }