static

in src/main/java/org/apache/commons/dbcp2/BasicDataSource.java [73:100]

• 22 lines of code
• 3 McCabe index (conditional complexity)

    static {
        // Attempt to prevent deadlocks - see DBCP - 272
        DriverManager.getDrivers();
        try {
            // Load classes now to prevent AccessControlExceptions later
            // A number of classes are loaded when getConnection() is called
            // but the following classes are not loaded and therefore require
            // explicit loading.
            if (Utils.isSecurityEnabled()) {
                final ClassLoader loader = BasicDataSource.class.getClassLoader();
                final String dbcpPackageName = BasicDataSource.class.getPackage().getName();
                loader.loadClass(dbcpPackageName + ".DelegatingCallableStatement");
                loader.loadClass(dbcpPackageName + ".DelegatingDatabaseMetaData");
                loader.loadClass(dbcpPackageName + ".DelegatingPreparedStatement");
                loader.loadClass(dbcpPackageName + ".DelegatingResultSet");
                loader.loadClass(dbcpPackageName + ".PoolableCallableStatement");
                loader.loadClass(dbcpPackageName + ".PoolablePreparedStatement");
                loader.loadClass(dbcpPackageName + ".PoolingConnection$StatementType");
                loader.loadClass(dbcpPackageName + ".PStmtKey");

                final String poolPackageName = PooledObject.class.getPackage().getName();
                loader.loadClass(poolPackageName + ".impl.LinkedBlockingDeque$Node");
                loader.loadClass(poolPackageName + ".impl.GenericKeyedObjectPool$ObjectDeque");
            }
        } catch (final ClassNotFoundException cnfe) {
            throw new IllegalStateException("Unable to pre-load classes", cnfe);
        }
    }