Java Oracle: Storing a TreeMap as BLOB?

I have the following code: public void StoreMapInDB(TreeMap map) throws IOException, FileNotFoundException{ try { PreparedStatement insertMap = null; String insertString = "INSERT INTO TESTMAP(ID, NAME) VALUES (1, ?)"; Connection con=null; con.setAutoCommit(false); Class.forName("oracle.jdbc.driver.OracleDriver"); con=DriverManager.getConnection( "jdbc:oracle:thin:@XXXXX", "XXX", "XXX"); //This line is incorrect for sure //insertMap.setBlob(1, map.); } catch(Exception e){e.printStackTrace();} } The connection works and all with database. This time i am trying to insert the map i.e. the treemap i created into a column in the table with type BLOB. How can I do that? is there any other better datatypes that I should look into? Thanks,

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