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Type:
Bug
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Status: Resolved
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Priority:
Minor
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Resolution: Fixed
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Affects Version/s: None
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Release Notes Summary:The REST API is more thread safe.
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Epic Link:
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Tags:
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Sprint:nxcore 10.1.4
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Story Points:1
In some rare situations, under load, the following stack trace can be observed:
Caused by: java.lang.ClassCastException: org.nuxeo.ecm.core.api.impl.DocumentModelImpl cannot be cast to java.util.List
at org.nuxeo.ecm.core.io.marshallers.json.document.DocumentModelListJsonWriter.write(DocumentModelListJsonWriter.java:42)
at org.nuxeo.ecm.core.io.marshallers.json.AbstractJsonWriter.write(AbstractJsonWriter.java:81)
at org.nuxeo.ecm.webengine.jaxrs.coreiodelegate.PartialCoreIODelegate.writeTo(PartialCoreIODelegate.java:114)
at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:302)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1510)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
at org.nuxeo.ecm.webengine.app.jersey.WebEngineServlet.containerService(WebEngineServlet.java:72)
It seems that PartialCoreIODelegate uses a wrong writer for the given entity type. This is due to the writer field that is used by several threads at the same time.
