Direct Buffer A direct buffer is a chunk of memory typically used to interface Java to the OS I/O subsystems, for example as a place where the OS writes data as it receives it from a socket or disk, and from which Java can read directly. Sharing the buffer with the OS is much more efficient than the original approach of copying data from the OS into Java's memory model, which then makes the data s
I'm thinking of using Docker to build my dependencies on a Continuous Integration (CI) server, so that I don't have to install all the runtimes and libraries on the agents themselves. To achieve this I would need to copy the build artifacts that are built inside the container back into the host. Is that possible?
I have a method for getting users from a database with JDBC: public List<User> getUser(int userId) { String sql = "SELECT id, name FROM users WHERE id = ?"; List<User> users = new ArrayList<User>(); try { Connection con = DriverManager.getConnection(myConnectionURL); PreparedStatement ps = con.prepareStatement(sql); ps.setInt(1, userId); ResultSet rs = ps.executeQuery(); while(rs.next()) { users.a
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