java finally问题@SuppressWarnings("finally")

[a34020249]

都说finally是无论程序抛不抛异常都会执行的。我就想把返回值放在finally里如下

	boolean isExist(String s) {
		boolean flag = false; 
		Connection conn = ConnectionFactory.getConnection();
		String sql = "select * from user where username='" + s + "'";
		Statement stmt = ConnectionFactory.getStatement(conn);
		ResultSet rs = ConnectionFactory.getResultSet(stmt, sql);
		try {
			if(rs.next()) {
				flag = true;
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			CloseDB.close(stmt, conn);
			return flag;
		}
	}

但是eclipse会有警告finally block does not complete normally，我改成下面这样就没了。我想问下为什么在finally中返回值就会出现finally block does not complete normally警告。

boolean isExist(String s) {
		boolean flag = false; 
		Connection conn = ConnectionFactory.getConnection();
		String sql = "select * from user where username='" + s + "'";
		Statement stmt = ConnectionFactory.getStatement(conn);
		ResultSet rs = ConnectionFactory.getResultSet(stmt, sql);
		try {
			if(rs.next()) {
				flag = true;
			}
			return flag;
		} catch (SQLException e) {
			e.printStackTrace();
			return flag;
		} finally {
			CloseDB.close(stmt, conn);
		}
	}

[a34020249]

来个人帮我解释下啊

[zhujiazhi]

http://blog.csdn.net/chh_jiang/archive/2009/09/16/4557461.aspx

[magong]

一句话，
finally中如果有return会打乱try/catch/finally正常的处理，所以要避免这样做。

[haojianfeng11]

怎么打乱的呢，求解，