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Posted to issues@cxf.apache.org by "Benson Margulies (JIRA)" <ji...@apache.org> on 2008/08/25 22:47:44 UTC
[jira] Updated: (CXF-1758) Simple front end does not figure out
generic implementation beans.
[ https://issues.apache.org/jira/browse/CXF-1758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benson Margulies updated CXF-1758:
----------------------------------
Component/s: Simple Frontend
Description:
The real issue in the description below is that the SimpleFrontEnd is not dealing with an implementation bean like
MyClass<String> as it must. It isn't figuring out the actual types, it's just allowing type erasure to mislead it into treating all instances of the type parameters as Object, which is to say xsd:anyType. This happened to trigger an obscure explosion in the Javascript generator.
If anyone wants to fix this badly enough, they need to contemplate
List<P> doSomething(P someItem)
in terms of the complexity of the code that will trace that P down there in the list up to the SEB.
I managed to get a javascript client example working but it barfs in some cases.
All my server classes are pojos and I am using the simple frontend (I think) with Aegis. I am very pleased with java2java communication since I can pass complex types with no annotations at all.
The problematic cases are of the form. (All other cases are working with js client)
public interface Service<T, P> {
public int open(P args);
public void close(int handle);
public int getValue(int handle);
}
My guess is it barfs in the generic P type argument.
When I am trying to do http://localhost/ws/SomeService?js tomcat produces an error
Aug 20, 2008 7:14:43 AM org.apache.cxf.transport.servlet.ServletController invoke
WARNING: org.apache.cxf.javascript.JavascriptQueryHandler Exception caught writing response.
java.lang.ClassCastException: org.apache.ws.commons.schema.XmlSchemaType cannot be cast to org.apache.ws.commons.schema.XmlSchemaComplexType
at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.deserializeElement(SchemaJavascriptBuilder.java:610)
at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.domDeserializerFunction(SchemaJavascriptBuilder.java:413)
at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.generateCodeForSchema(SchemaJavascriptBuilder.java:102)
at org.apache.cxf.javascript.JavascriptQueryHandler.writeResponse(JavascriptQueryHandler.java:135)
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:152)
at org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:174)
at org.apache.cxf.transport.servlet.AbstractCXFServlet.doGet(AbstractCXFServlet.java:156)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:262)
at org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:171)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:167)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)
was:
I managed to get a javascript client example working but it barfs in some cases.
All my server classes are pojos and I am using the simple frontend (I think) with Aegis. I am very pleased with java2java communication since I can pass complex types with no annotations at all.
The problematic cases are of the form. (All other cases are working with js client)
public interface Service<T, P> {
public int open(P args);
public void close(int handle);
public int getValue(int handle);
}
My guess is it barfs in the generic P type argument.
When I am trying to do http://localhost/ws/SomeService?js tomcat produces an error
Aug 20, 2008 7:14:43 AM org.apache.cxf.transport.servlet.ServletController invoke
WARNING: org.apache.cxf.javascript.JavascriptQueryHandler Exception caught writing response.
java.lang.ClassCastException: org.apache.ws.commons.schema.XmlSchemaType cannot be cast to org.apache.ws.commons.schema.XmlSchemaComplexType
at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.deserializeElement(SchemaJavascriptBuilder.java:610)
at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.domDeserializerFunction(SchemaJavascriptBuilder.java:413)
at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.generateCodeForSchema(SchemaJavascriptBuilder.java:102)
at org.apache.cxf.javascript.JavascriptQueryHandler.writeResponse(JavascriptQueryHandler.java:135)
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:152)
at org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:174)
at org.apache.cxf.transport.servlet.AbstractCXFServlet.doGet(AbstractCXFServlet.java:156)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:262)
at org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:171)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:167)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)
Estimated Complexity: Advanced
Summary: Simple front end does not figure out generic implementation beans. (was: javascript client generation barfs at generic types)
> Simple front end does not figure out generic implementation beans.
> ------------------------------------------------------------------
>
> Key: CXF-1758
> URL: https://issues.apache.org/jira/browse/CXF-1758
> Project: CXF
> Issue Type: Bug
> Components: Simple Frontend
> Affects Versions: 2.1.2
> Environment: linux debian stable (etch) tomcat 5.5.20-2etch3
> Reporter: Vassilis Virvilis
>
> The real issue in the description below is that the SimpleFrontEnd is not dealing with an implementation bean like
> MyClass<String> as it must. It isn't figuring out the actual types, it's just allowing type erasure to mislead it into treating all instances of the type parameters as Object, which is to say xsd:anyType. This happened to trigger an obscure explosion in the Javascript generator.
> If anyone wants to fix this badly enough, they need to contemplate
> List<P> doSomething(P someItem)
> in terms of the complexity of the code that will trace that P down there in the list up to the SEB.
> I managed to get a javascript client example working but it barfs in some cases.
> All my server classes are pojos and I am using the simple frontend (I think) with Aegis. I am very pleased with java2java communication since I can pass complex types with no annotations at all.
> The problematic cases are of the form. (All other cases are working with js client)
> public interface Service<T, P> {
> public int open(P args);
> public void close(int handle);
> public int getValue(int handle);
> }
> My guess is it barfs in the generic P type argument.
> When I am trying to do http://localhost/ws/SomeService?js tomcat produces an error
> Aug 20, 2008 7:14:43 AM org.apache.cxf.transport.servlet.ServletController invoke
> WARNING: org.apache.cxf.javascript.JavascriptQueryHandler Exception caught writing response.
> java.lang.ClassCastException: org.apache.ws.commons.schema.XmlSchemaType cannot be cast to org.apache.ws.commons.schema.XmlSchemaComplexType
> at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.deserializeElement(SchemaJavascriptBuilder.java:610)
> at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.domDeserializerFunction(SchemaJavascriptBuilder.java:413)
> at org.apache.cxf.javascript.types.SchemaJavascriptBuilder.generateCodeForSchema(SchemaJavascriptBuilder.java:102)
> at org.apache.cxf.javascript.JavascriptQueryHandler.writeResponse(JavascriptQueryHandler.java:135)
> at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:152)
> at org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:174)
> at org.apache.cxf.transport.servlet.AbstractCXFServlet.doGet(AbstractCXFServlet.java:156)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
> at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
> at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:262)
> at org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterChain.java:192)
> at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:171)
> at java.security.AccessController.doPrivileged(Native Method)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:167)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
> at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
> at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
> at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
> at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
> at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
> at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
> at java.lang.Thread.run(Thread.java:619)
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