how to serialize java 8 LocalDateTime and java.time.* classes

[Cory Showers]

I saw that in there is support now for Java 8 DateTime classes in jira https://jira.granitedataservices.com/browse/GDS-1268

However when doing a simple test case of serializing LocalDateTime from client to server I get the following error

SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/indms] threw exception

java.io.IOException: java.lang.IllegalAccessException: Class org.granite.messaging.reflect.ConstructorInstantiator can not access a member of class java.time.Ser with modifiers "public"

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:136)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.readObjectArray0(ObjectArrayCodecImpl.java:215)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.decode(ObjectArrayCodecImpl.java:165)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.readObjectArray0(ObjectArrayCodecImpl.java:215)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.decode(ObjectArrayCodecImpl.java:165)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

at org.granite.messaging.jmf.JMFDeserializer.readAndSetProperty(JMFDeserializer.java:336)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:241)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:235)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:235)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:226)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decode(ObjectCodecImpl.java:179)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.readObjectArray0(ObjectArrayCodecImpl.java:215)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.decode(ObjectArrayCodecImpl.java:165)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

at org.granite.messaging.jmf.JMFDeserializer.readAndSetProperty(JMFDeserializer.java:336)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:241)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:226)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decode(ObjectCodecImpl.java:179)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

at org.granite.messaging.jmf.codec.std.impl.ArrayListCodecImpl.decode(ArrayListCodecImpl.java:84)

at org.granite.messaging.jmf.codec.std.impl.ArrayListCodecImpl.decode(ArrayListCodecImpl.java:40)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

at org.granite.messaging.jmf.JMFDeserializer.readAndSetProperty(JMFDeserializer.java:336)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:241)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decodeSerializable(ObjectCodecImpl.java:226)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decode(ObjectCodecImpl.java:179)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

at org.granite.messaging.webapp.AMFEndpoint.serviceJMFAMF(AMFEndpoint.java:147)

at org.granite.messaging.webapp.AMFEndpoint.service(AMFEndpoint.java:64)

at org.granite.spring.ServerFilter.handle(ServerFilter.java:331)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)

at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.IllegalAccessException: Class org.granite.messaging.reflect.ConstructorInstantiator can not access a member of class java.time.Ser with modifiers "public"

at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:101)

at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:295)

at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:287)

at java.lang.reflect.Constructor.newInstance(Constructor.java:398)

at org.granite.messaging.reflect.ConstructorInstantiator.newInstance(ConstructorInstantiator.java:37)

at org.granite.messaging.reflect.ClassDescriptor.newInstance(ClassDescriptor.java:107)

at org.granite.messaging.jmf.codec.std.impl.ObjectCodecImpl.decode(ObjectCodecImpl.java:171)

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:130)

I am not using any custom Converters and I was expected granite to support java 8 dates automatically.  Do I have to enable this feature?

My test case is just a dummy service with LocalDateTime as the in/out parameters

this.service.testLocalDate(LocalDateTime.now, new TideResponder<LocalDateTime>() {

@Override

public void result(TideResultEvent<LocalDateTime> event) {

log.info("yaay Java 8 dates " + event.getResult().toString());

 

}

@Override

public void fault(TideFaultEvent event) {

log.error("", event);

}

});

I'm using JavaFX 8_u20 on client and Java 8_u20 on server in a tomcat 7 container.   

Granite ver: 3.1.0.RC1

[Cory Showers]

FYI - I did some digging and saw the fix was related to granite-jmf-java8 module.   I added this maven dependency on server and still same error.

[Cory Showers]

Anyone has an idea about this?  Still no luck.  I might have to just implement custom converters.

[Fabiano Frizzo]

Hi Cory,

You need implement a custom Converter/Reverter to this. 

See this example for GAEKeyConverter

https://www.granitedataservices.com/public/docs/2.3.2/docs/java/api/index.html

https://www.granitedataservices.com/public/docs/3.1.0/docs/server/api/index.html

Att
Fabiano Frizzo

(45)3324-4204
(45)9969-7850

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[Cory Showers]

Ok, but I'm not sure what this JIRA fix is supposed to  do https://jira.granitedataservices.com/browse/GDS-1268   

I thought with the new RC1 release I wouldn't have to write a converter.  Maybe I was wrong.

[William Drai]

The Java8 module works only when the client AND the server run on Java 8.
It might be possible to implement a custom encoder/decoder that would work  with Java 8 on the client but that would mean that all dates are received as Java 8 style dates.

---

De : Cory Showers
Envoyé : ‎24/‎07/‎2014 16:04
À : gran...@googlegroups.com
Objet : [graniteds] Re: how to serialize java 8 LocalDateTime and java.time.*classes

--

[Cory Showers]

hmm not sure what i'm doing wrong then.  Both the server and client are Java 8 I added java8 module to server pom.  The exception is not very obvious. it complaining about public modifiers on java.time.LocalDateTime.  Could it be that there is no default public constructor for LocalDateTime.  The only way I instantiate it in code is to do the following LocalDateTime.now();

java.io.IOException: java.lang.IllegalAccessException: Class org.granite.messaging.reflect.ConstructorInstantiator can not access a member of class java.time.Ser with modifiers "public"

at org.granite.messaging.jmf.JMFDeserializer.readObject(JMFDeserializer.java:136)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.readObjectArray0(ObjectArrayCodecImpl.java:215)

at org.granite.messaging.jmf.codec.std.impl.ObjectArrayCodecImpl.decode(ObjectArrayCodecImpl.java:165)

[William Drai]

You need the granite-jmf8 module on both the client and the server

---

De : Cory Showers
Envoyé : ‎24/‎07/‎2014 20:37
À : gran...@googlegroups.com
Objet : Re: [graniteds] Re: how to serialize java 8 LocalDateTime andjava.time.*classes

[Cory Showers]

excellent that was the key.  I only had module on server instead of both.   wheew

thanks