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java.util.LinkedHashMap cannot be cast to java.lang.String
java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to java.lang.String	at it.unitn.disi.sweb.webapi.server.translators.impl.ValueTranslator.syncValue(ValueTranslator.java:297)	at it.unitn.disi.sweb.webapi.server.translators.impl.ValueTranslator.syncSource(ValueTranslator.java:257)	at it.unitn.disi.sweb.webapi.server.translators.impl.ValueTranslator.translateTarget(ValueTranslator.java:124)	at it.unitn.disi.sweb.webapi.server.translators.impl.AttributeTranslator.syncValues(AttributeTranslator.java:180)	at it.unitn.disi.sweb.webapi.server.translators.impl.AttributeTranslator.syncSource(AttributeTranslator.java:165)	at it.unitn.disi.sweb.webapi.server.translators.impl.AttributeTranslator.translateTarget(AttributeTranslator.java:146)	at it.unitn.disi.sweb.webapi.server.translators.impl.InstanceTranslator.syncAttributes(InstanceTranslator.java:86)	at it.unitn.disi.sweb.webapi.server.translators.impl.InstanceTranslator.syncSource(InstanceTranslator.java:73)	at it.unitn.disi.sweb.webapi.server.translators.impl.EntityTranslator.syncSource(EntityTranslator.java:46)	at it.unitn.disi.sweb.webapi.server.translators.impl.EntityTranslator.syncSource(EntityTranslator.java:33)	at it.unitn.disi.sweb.webapi.server.translators.impl.AbstractTranslator.translateTarget(AbstractTranslator.java:39)	at it.unitn.disi.sweb.webapi.server.adapters.impl.AbstractEntityAdapter.create(AbstractEntityAdapter.java:149)	at it.unitn.disi.sweb.webapi.server.adapters.impl.InstanceAdapter.create(InstanceAdapter.java:99)	at it.unitn.disi.sweb.webapi.server.adapters.impl.InstanceAdapter.create(InstanceAdapter.java:45)	at sun.reflect.GeneratedMethodAccessor366.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)	at com.sun.proxy.$Proxy118.create(Unknown Source)	at it.unitn.disi.sweb.webapi.server.controllers.InstanceController.create(InstanceController.java:500)	at sun.reflect.GeneratedMethodAccessor470.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953)	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at it.unitn.disi.sweb.webapi.server.utils.HeadersFilter.doFilterInternal(HeadersFilter.java:72)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82)	at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:256)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:745)