All of the threads are blocked in RUNABLE state for 10 hours

As the following dump, some nodes happen by chance that the thread raises with the time and finally all of the threads are in this status for more than 10 hours and the system are hanging. We are using the hybris 6.6 with EclipseLink OXM 2.6.4, is there a known bug for EclipseLink OXM? or do anybody encountered a similar problem?

"hybrisHTTP500" #695 daemon prio=5 os_prio=0 tid=0x00007f3c00875000 nid=0x48f in Object.wait() [0x00007f3b4c709000]
   java.lang.Thread.State: RUNNABLE
	at org.glassfish.json.JsonParserImpl.getValue(JsonParserImpl.java:185)
	at org.glassfish.json.JsonParserImpl.getObject(JsonParserImpl.java:339)
	at org.glassfish.json.JsonParserImpl.getObject(JsonParserImpl.java:173)
	at org.glassfish.json.JsonReaderImpl.read(JsonReaderImpl.java:94)
	at org.eclipse.persistence.internal.oxm.record.json.JsonStructureReader.parse(JsonStructureReader.java:139)
	at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:1016)
	at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:452)
	at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:400)
	at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:741)
	at org.eclipse.persistence.internal.oxm.XMLUnmarshaller.unmarshal(XMLUnmarshaller.java:649)
	at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:349)
	at de.hybris.platform.webservicescommons.jaxb.Jaxb2HttpMessageConverter.unmarshal(Jaxb2HttpMessageConverter.java:108)
	at de.hybris.platform.webservicescommons.jaxb.Jaxb2HttpMessageConverter.readFromSource(Jaxb2HttpMessageConverter.java:93)
	at org.springframework.http.converter.xml.AbstractXmlHttpMessageConverter.readInternal(AbstractXmlHttpMessageConverter.java:61)
	at org.springframework.http.converter.AbstractHttpMessageConverter.read(AbstractHttpMessageConverter.java:193)
	at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver.readWithMessageConverters(AbstractMessageConverterMethodArgumentResolver.java:217)
	at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:150)
	at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.resolveArgument(RequestResponseBodyMethodProcessor.java:128)
	at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:121)
	at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:158)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:128)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)


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multithreading glassfish eclipselink block