Database Error

What This Error Means

This error occurs when the Java application is unable to acquire a connection to the database, often due to a high load or a misconfigured database connection pool.

Why It Happens

This error can happen when there are not enough available connections in the connection pool, or when the connections are being held onto for an extended period of time. It can also occur when the database is experiencing high loads or has been shut down unexpectedly.

How to Fix It

1. 1To fix this error, you can try to increase the size of the connection pool, or implement a mechanism to recycle and close idle connections. Additionally, you may need to adjust your database configuration or consult the database logs to determine the root cause of the issue.

Example Code Solution

try {
    Connection conn = DriverManager.getConnection(url, username, password);
    // Do something with the connection
  } catch (SQLException e) {
    // The error message will be printed here
  }

try {
    DataSource dataSource = DataSourceBuilder.create().build();
    Connection conn = dataSource.getConnection();
    // Do something with the connection
  } catch (SQLException e) {
    // The error message will be printed here
  }