BoundHashOperations referenced from a method is not visible from class loader

[sthakore-atlassian]

Hello,

We moved from spring-boot 2 to spring boot 3 and upgraded the spring-data-redis. We are facing an issue with spring-data-redis 3.1.2 version with below error stack trace at runtime.

java.lang.IllegalArgumentException: org.springframework.data.redis.core.BoundHashOperations referenced from a method is not visible from class loader
	at java.base/java.lang.reflect.Proxy$ProxyBuilder.ensureVisible(Unknown Source)
	at java.base/java.lang.reflect.Proxy$ProxyBuilder.validateProxyInterfaces(Unknown Source)
	at java.base/java.lang.reflect.Proxy$ProxyBuilder.<init>(Unknown Source)
	at java.base/java.lang.reflect.Proxy.lambda$getProxyConstructor$1(Unknown Source)
	at java.base/jdk.internal.loader.AbstractClassLoaderValue$Memoizer.get(Unknown Source)
	at java.base/jdk.internal.loader.AbstractClassLoaderValue.computeIfAbsent(Unknown Source)
	at java.base/java.lang.reflect.Proxy.getProxyConstructor(Unknown Source)
	at java.base/java.lang.reflect.Proxy.newProxyInstance(Unknown Source)
	at org.springframework.aop.framework.JdkDynamicAopProxy.getProxy(JdkDynamicAopProxy.java:123)
	at org.springframework.aop.framework.JdkDynamicAopProxy.getProxy(JdkDynamicAopProxy.java:115)
	at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:97)
	at org.springframework.data.redis.core.BoundOperationsProxyFactory.createProxy(BoundOperationsProxyFactory.java:73)
	at org.springframework.data.redis.core.RedisTemplate.boundHashOps(RedisTemplate.java:985)

Below is the function we are trying to call

var hashOperations = redisTemplate.<Integer, String>boundHashOps(getEtagKey(referenceId));

Any clue what is happening here at run-time ?

[mp911de]

Can you provide a reproducer? Attempting to reproduce failed with a Spring Boot 3 app:

@Bean
CommandLineRunner clr(RedisTemplate<String, String> template) {
	return args -> {
		template.boundHashOps("my-key").entries();
	};
}

Please provide also the version number of Spring Boot and Spring Data Redis.

[sthakore-atlassian]

Hey @mp911de Thanks for your quick response.

Spring Boot : 3.1.2
Spring Data Redis : 3.1.2

It's failing here in first line where we call boundHashOps

var hashOperations = redisTemplate.<Integer, String>boundHashOps("abc");

hashOperations.put(8463,"xyz");
hashOperations.expire(Duration.ofHours(6));

[mp911de]

Still cannot reproduce. Can you provide please a minimal reproducer? Using https://start.spring.io will get you started.

[jxblum]

Is this the full Stack Trace? I suspect not.

Also, in what context is your Spring application running? Is this a Web application inside Apache Tomcat, Eclipse Jetty, or some other container environment?

Are you using a custom ClassLoader, perhaps?

What dependencies are on your Spring application classpath?

NOTE: I only ask this last question because some users have experienced anomalies when other libraries, such as Redisson (for example), are also on their Spring application classpath. I am not saying Redisson is the issue or that this is your issue in particular, but having a snapshot of your dependencies might help shed more light on the problem.

Are you by chance using Java's module system and modulepath?

The jump from Spring Boot 2 to Spring Boot 3 also suggests that you moved from (possibly, as early as) Java 8 to minimally Java 17.

Since this is not readily reproducible, it is unlikely to be a specific problem with Spring Data Redis, therefore a small, self-contained reproducer will help us help you.

Thanks.

[jxblum]

NOTE: Upon closer inspection, given the "ETag" reference from your snippet of code above, I gather this is a Spring Web application. As such, you are at the mercy of your Servlet container's ClassLoader(s), most likely.

[jxblum]

As @mp911de did above, I also wrote a quick test class based on this issue for a sanity check.

You can see the dependencies of my (test) classpath here along with the parent.

This test passes as expected and I am using Spring Boot 3.1.5 (which pulls in Spring Data Redis 3.1.5); see here.

I also thought of 1 last thing... what Java Runtime Environment are you using?

Hopefully you can reproduce this issue in a small, self-contained example/test. Here is a link from start.spring.io to get you started.

[spring-projects-issues]

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[spring-projects-issues]

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