HotSwap agent. Linkage errors

[Former Member]

Hi everyone. I use HotSwap agent for redeploying classes. But from time to time the next exceptions occure during starting hybris instance:

 ERROR [Task-master-poll] [HybrisApplicationEventMulticaster] org.hotswap.agent.javassist.CannotCompileException: by java.lang.LinkageError: loader (instance of  de/hybris/bootstrap/loader/PlatformInPlaceClassLoader): attempted  duplicate class definition for name: "HotswapSpringCallback_1796692748"

For solving problem I need to do ant clean all before launching. Has anyone met this problem?

[Former Member · Accepted solution]

Hi , yes, now I know why it occurs, the version of DCVEM and of JAVA must be equals. If you are going to use DCEVM for JAVA 8, in this case your java must have the next version: java8 update 112 build 9

[mohansaikumar1]

Hi,

I am also facing the same problem while using the HOTSWAP agent.

Caused by: org.hotswap.agent.javassist.CannotCompileException: by java.lang.LinkageError: loader (instance of de/hybris/bootstrap/loader/PlatformInPlaceClassLoader): attempted duplicate class definition for name: "HotswapSpringCallback_1796692748" at org.hotswap.agent.javassist.ClassPool.toClass(ClassPool.java:1170) ~[hotswap-agent-1.1.0-SNAPSHOT.jar:1.1.0-SNAPSHOT] at org.hotswap.agent.javassist.CtClass.toClass(CtClass.java:1316) ~[hotswap-agent-1.1.0-SNAPSHOT.jar:1.1.0-SNAPSHOT] at org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater.buildProxyCallbackClass(EnhancerProxyCreater.java:231) ~[ytomcat.jar:1.1.0-SNAPSHOT] at org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater.getProxyCreationMethod(EnhancerProxyCreater.java:101) ~[ytomcat.jar:1.1.0-SNAPSHOT] at org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater.create(EnhancerProxyCreater.java:83) ~[ytomcat.jar:1.1.0-SNAPSHOT]

Could some one please help us.

I am using 6.4.0.1

Thanks in advance.