question-mark
Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Set

See original GitHub issue

What can cause such an error?

Exception in thread "redisson-3-4" java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Set
	at org.redisson.RedissonMap.readAllEntrySet(zb:513)
	at org.redisson.spring.session.RedissonSessionRepository$RedissonSession.load(RedissonSessionRepository.java:97)
	at org.redisson.spring.session.RedissonSessionRepository.findById(RedissonSessionRepository.java:319)
	at org.redisson.spring.session.RedissonSessionRepository.onMessage(RedissonSessionRepository.java:261)
	at org.redisson.spring.session.RedissonSessionRepository.onMessage(RedissonSessionRepository.java:53)
	at org.redisson.d.onPatternMessage(ol:156)
	at org.redisson.client.RedisPubSubConnection.onMessage(RedisPubSubConnection.java:84)
	at org.redisson.client.handler.CommandPubSubDecoder.lambda$enqueueMessage$0(CommandPubSubDecoder.java:188)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.lang.Thread.run(Thread.java:748)
[epollEventLoopGroup-2-5] WARN io.netty.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
java.lang.IncompatibleClassChangeError: Found interface org.objectweb.asm.MethodVisitor, but class was expected
	at com.esotericsoftware.reflectasm.ConstructorAccess.insertConstructor(ConstructorAccess.java:128)
	at com.esotericsoftware.reflectasm.ConstructorAccess.get(ConstructorAccess.java:98)
	at com.esotericsoftware.kryo.Kryo$DefaultInstantiatorStrategy.newInstantiatorOf(Kryo.java:1271)
	at com.esotericsoftware.kryo.Kryo.newInstantiator(Kryo.java:1127)
	at com.esotericsoftware.kryo.Kryo.newInstance(Kryo.java:1136)
	at com.esotericsoftware.kryo.serializers.FieldSerializer.create(FieldSerializer.java:562)
	at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:538)
	at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:813)
	at org.redisson.codec.KryoCodec$1.decode(KryoCodec.java:126)
	at org.redisson.client.handler.CommandDecoder.decode(CommandDecoder.java:402)
	at org.redisson.client.handler.CommandDecoder.decodeList(CommandDecoder.java:446)
	at org.redisson.client.handler.CommandDecoder.decode(CommandDecoder.java:411)
	at org.redisson.client.handler.CommandDecoder.decodeCommandBatch(CommandDecoder.java:300)
	at org.redisson.client.handler.CommandDecoder.decodeCommand(CommandDecoder.java:233)
	at org.redisson.client.handler.CommandDecoder.decode(CommandDecoder.java:160)
	at org.redisson.client.handler.CommandDecoder.decode(CommandDecoder.java:129)
	at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:502)
	at io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:366)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1408)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930)
	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:796)
	at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:432)
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:333)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.lang.Thread.run(Thread.java:748)

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:16 (8 by maintainers)

github_iconTop GitHub Comments

1reaction
mrnikocommented, Dec 15, 2021

Great. I’m closing it.

1reaction
bkoroliuk-amplifycommented, Dec 15, 2021

@mrniko we have finally fixed this issue for ECS, list of updates:

  • redisson-all 3.11.0 => 3.16.5
  • Redis Cluster 3x => 6x
  • com.esotericsoftware.kryo => 5.2.0
  • de.javakaffee.kryo-serializers => 0.45
Read more comments on GitHub >

github_iconTop Results From Across the Web

java.lang.String cannot be cast to java.lang.Long
The reason is that your array consists of String object, and direct casting won't work. Share.
Read more >
How to fix java.lang.classcastexception cannot be cast to in Java
As name suggests ClassCastException in Java comes when we try to type cast an object and object is not of the type we...
Read more >
java.lang.String cannot be cast to java.util.Collection - Modeler ...
ClassCastException : java.lang.String cannot be cast to java.util.Collection It is a simple java program to add elements to the list.
Read more >
java.lang.String cannot be cast to java.util.ArrayList ... - Search
This is caused by an attempt to cast the string of the "Text" type, represented as one string "item1, item2, item3" as an...
Read more >
Fixing the JPA error "java.lang.String cannot be cast to [Ljava ...
public · @Entity · public · @Test(expected = ClassCastException. · public · @Test · public · @SqlResultSetMapping( name="textQueryMapping", classes={ @ ...
Read more >

github_iconTop Related Medium Post

No results found

github_iconTop Related StackOverflow Question

No results found

github_iconTroubleshoot Live Code

Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free

github_iconTop Related Reddit Thread

No results found

github_iconTop Related Hackernoon Post

No results found

github_iconTop Related Tweet

No results found

github_iconTop Related Dev.to Post

No results found

github_iconTop Related Hashnode Post

No results found