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    If you're using multiple frameworks on your project, check if this is not a problem between mismatched versions of javassist between them.

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java.io.IOException: invalid constant type: 15	at javassist.bytecode.ConstPool.readOne(ConstPool.java:1027)	at javassist.bytecode.ConstPool.read(ConstPool.java:970)	at javassist.bytecode.ConstPool.(ConstPool.java:127)	at javassist.bytecode.ClassFile.read(ClassFile.java:693)	at javassist.bytecode.ClassFile.(ClassFile.java:85)	at javassist.CtClassType.getClassFile2(CtClassType.java:190)	at javassist.CtClassType.getInterfaces(CtClassType.java:630)	at org.mobicents.slee.container.component.deployment.SbbAbstractClassDecorator$1.edit(SbbAbstractClassDecorator.java:204)	at javassist.expr.ExprEditor.loopBody(ExprEditor.java:191)	at javassist.expr.ExprEditor.doit(ExprEditor.java:90)	at javassist.CtBehavior.instrument(CtBehavior.java:618)	at org.mobicents.slee.container.component.deployment.SbbAbstractClassDecorator.trapMethodIfENCBindCall(SbbAbstractClassDecorator.java:193)	at org.mobicents.slee.container.component.deployment.SbbAbstractClassDecorator.decorateENCBindCalls(SbbAbstractClassDecorator.java:182)	at org.mobicents.slee.container.component.deployment.SbbAbstractClassDecorator.decorateAbstractSbb(SbbAbstractClassDecorator.java:124)	at org.mobicents.slee.container.component.deployment.DeployableUnitBuilderImpl.loadAndSetNonGeneratedComponentClasses(DeployableUnitBuilderImpl.java:470)	at org.mobicents.slee.container.component.deployment.DeployableUnitBuilderImpl.build(DeployableUnitBuilderImpl.java:236)	at org.mobicents.slee.container.component.deployment.DeployableUnitBuilderImpl.build(DeployableUnitBuilderImpl.java:72)	at org.mobicents.slee.container.management.jmx.DeploymentMBeanImpl.install(DeploymentMBeanImpl.java:164)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)	at sun.reflect.GeneratedMethodAccessor301.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.jboss.jmx.connector.invoker.InvokerAdaptorService.invoke(InvokerAdaptorService.java:263)	at sun.reflect.GeneratedMethodAccessor283.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:138)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:90)	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:140)	at org.jboss.jmx.connector.invoker.SerializableInterceptor.invoke(SerializableInterceptor.java:74)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:90)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)	at org.jboss.invocation.jrmp.server.JRMPProxyFactory.invoke(JRMPProxyFactory.java:180)	at sun.reflect.GeneratedMethodAccessor282.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)	at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)	at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)	at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:209)	at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:195)	at org.jboss.jmx.connector.invoker.client.InvokerAdaptorClientInterceptor.invoke(InvokerAdaptorClientInterceptor.java:66)	at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:68)	at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodInterceptor.java:74)	at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:101)	at com.sun.proxy.$Proxy323.invoke(Unknown Source)	at org.mobicents.slee.container.management.console.server.mbeans.DeploymentMBeanUtils.install(DeploymentMBeanUtils.java:298)	at org.mobicents.slee.container.management.console.server.deployableunits.DeployableUnitsInstallService.doPost(DeployableUnitsInstallService.java:77)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)	at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)	at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)	at java.lang.Thread.run(Unknown Source)