Java 21 and Virtual Threads: Timeout waiting for idle object

[qyyxl]

Actual behavior

The following error occurs when I change the application's business thread to a virtual thread and the traffic suddenly increases：

	Caused by: java.util.NoSuchElementException: Timeout waiting for idle object
		at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:461)
		at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:375)
		at redis.clients.util.Pool.getResource(Pool.java:49)
		at credis.java.client.pool.impl.CRedisJedisPool.getResource(CRedisJedisPool.java:103)

Redis / Jedis Configuration

Java version:jdk21

[sazzad16]

@qyyxl

First of all, please mention relevant versions.

Jedis does not have any official release supporting virtual threads. But it expected from 5.2.0. In the mean time, the support is available in latest 5.2.0-SNAPSHOTs.

[sazzad16]

Could be related to #3927

[BinaryIgor]

@sazzad16 is it fixed already in the 5.2.0-SNAPSHOT version? At our company, we want to ditch Redisson in favor of Jedis simplicity and this bug is the only thing preventing us from doing it, because we do use Java 21 with Virtual Threads quite extensively.

[MaciejLipinski]

I second @BinaryIgor 's question about the fix in the 5.2.0 snapshot – it did not seem to be fixed in our tests with the 5.2.0-beta5 version.

[sazzad16]

@BinaryIgor @MaciejLipinski We did our part AFAIK. If you find something within Jedis code base, please let us know.

But one of our dependencies, commons-pool, is yet to update.