Fixed in trunk in r1340160
Fixed in 7.0.x in r1340164

Nice!  Thanks Filip!

For laughs here is the workaround implementation I created yesterday. :)

public void purge() throws Exception {
		long oldMaxAge = dataSource.getMaxAge();
		int oldMaxIdle = dataSource.getMaxIdle();
		int oldMaxActive = dataSource.getMaxActive();
		int oldMinEvictTime = dataSource.getMinEvictableIdleTimeMillis();
		PooledConnection connection = dataSource.getPooledConnection();
		IllegalStateException error = null;
		try {
			dataSource.setMaxActive(1);
			dataSource.setMaxIdle(1);
			dataSource.setMaxAge(1);
			dataSource.setMinEvictableIdleTimeMillis(1);
			int sec = 0;
			Thread.sleep(1001);
			while(dataSource.getActive() > 1 && sec < 29) {
				Thread.sleep(1000);
				sec++;
			}
			dataSource.checkIdle();
			if(dataSource.getActive() > 1) {
				error = new IllegalStateException("Closed all but "+(dataSource.getActive()-1)+" connection(s) after 30 sec.  Try again.");
			}
			connection.close();
		} finally {
			dataSource.setMaxAge(oldMaxAge);
			dataSource.setMaxActive(oldMaxActive);
			dataSource.setMaxIdle(oldMaxIdle);
			dataSource.setMinEvictableIdleTimeMillis(oldMinEvictTime);
			if(error != null) {
				throw error;
			}
		}
	}