com.microsoft.sqlserver.jdbc.SQLServerException: The incoming tabular data stream (TDS) remote procedure call (RPC) protocol stream is incorrect. Parameter 3 (""): Data type 0xA7 has an invalid data length or metadata length.
	at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:259)
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1566)
	at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.doExecutePreparedStatement(SQLServerPreparedStatement.java:554)
	at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement$PrepStmtExecCmd.doExecute(SQLServerPreparedStatement.java:488)
	at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7352)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2724)
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:224)
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:204)
	at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeUpdate(SQLServerPreparedStatement.java:435)
	at com.sample.alwaysencrypted.SQLDatabaseConnection.main(SQLDatabaseConnection.java:25)

import java.sql.*;

public class SQLDatabaseConnection {

	// Connect to your database.
	// Replace server name, username, and password with your credentials
	public static void main(String[] args) {
		String connectionString = "jdbc:sqlserver://localhost:2016;" + "database=db;"
				+ "user=user;" + "password=pass;" + "sendStringParametersAsUnicode=true;columnEncryptionSetting=Enabled;";

		// Declare the JDBC objects.
		Connection connection = null;

		try {
			connection = DriverManager.getConnection(connectionString);			
			
			String insert = "insert into Person values (?, ?, ?)";
			PreparedStatement insertps = connection.prepareStatement(insert);
			insertps.setString(1, "");
			insertps.setString(2, "Smith");
			insertps.setString(3, "George");
		
			insertps.executeUpdate();
			
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (connection != null)
				try {
					connection.close();
				} catch (Exception e) {
				}
		}
	}
}