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https://issues.apache.org/jira/browse/CXF-3613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Daniel Kulp resolved CXF-3613.
------------------------------
Resolution: Fixed
Fix Version/s: 2.7.1
2.6.4
2.5.7
Assignee: Daniel Kulp
This is not something we'd expose by default as having the ability to load
random classes like that is definitely a huge issue. However, I did write a
system test in
rt/databinding/aegis/src/test/java/org/apache/cxf/aegis/type/java5/ClassTest.java
that can show how to create the custom type, register it, create the schema,
etc.... It did require a minor bug fix in the aegis databinding though so it
will require 2.7.1/2.6.4/2.5.7 to work.
> Various problems with "java.lang.Class"
> ---------------------------------------
>
> Key: CXF-3613
> URL: https://issues.apache.org/jira/browse/CXF-3613
> Project: CXF
> Issue Type: Bug
> Components: Aegis Databinding
> Affects Versions: 2.4.1
> Reporter: Ancoron Luciferis
> Assignee: Daniel Kulp
> Priority: Critical
> Fix For: 2.5.7, 2.6.4, 2.7.1
>
>
> I just noted that the following exception is thrown when trying to create
> server for some service interface that contains some reference to
> "java.lang.Class".
> Consider a service interface like this:
> {code:java}
> package org.apache.cxf.aegis.type.java5;
> import java.io.Serializable;
> public class GenericsService {
> public <T extends Serializable> T createInstance(Class<T> type)
> throws InstantiationException, IllegalAccessException {
> return type.newInstance();
> }
> }
> {code}
> \\
> The problem is, that during creation time it throws a NullPointerException
> like this:
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.cxf.aegis.type.basic.BeanTypeInfo$1.compare(BeanTypeInfo.java:307)
> at
> org.apache.cxf.aegis.type.basic.BeanTypeInfo$1.compare(BeanTypeInfo.java:306)
> at java.util.Arrays.mergeSort(Arrays.java:1270)
> at java.util.Arrays.mergeSort(Arrays.java:1282)
> at java.util.Arrays.mergeSort(Arrays.java:1281)
> at java.util.Arrays.mergeSort(Arrays.java:1281)
> at java.util.Arrays.sort(Arrays.java:1210)
> at
> org.apache.cxf.aegis.type.basic.BeanTypeInfo.initializeProperties(BeanTypeInfo.java:305)
> at
> org.apache.cxf.aegis.type.basic.BeanTypeInfo.<init>(BeanTypeInfo.java:75)
> at
> org.apache.cxf.aegis.type.java5.AnnotatedTypeInfo.<init>(AnnotatedTypeInfo.java:41)
> at
> org.apache.cxf.aegis.type.java5.AnnotatedTypeInfo.<init>(AnnotatedTypeInfo.java:36)
> at
> org.apache.cxf.aegis.type.java5.Java5TypeCreator.createDefaultType(Java5TypeCreator.java:208)
> at
> org.apache.cxf.aegis.type.XMLTypeCreator.createDefaultType(XMLTypeCreator.java:398)
> at
> org.apache.cxf.aegis.type.AbstractTypeCreator.createTypeForClass(AbstractTypeCreator.java:135)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.getParameterType(AegisDatabinding.java:574)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.initializeMessage(AegisDatabinding.java:315)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.initializeOperation(AegisDatabinding.java:273)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.initialize(AegisDatabinding.java:239)
> at
> org.apache.cxf.service.factory.AbstractServiceFactoryBean.initializeDataBindings(AbstractServiceFactoryBean.java:86)
> at
> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:438)
> at
> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:501)
> at
> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:241)
> at
> org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:101)
> at
> org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:157)
> at
> org.apache.cxf.dosgi.dsw.handlers.HttpServiceConfigurationTypeHandler.createServer(HttpServiceConfigurationTypeHandler.java:169)
> at
> org.apache.cxf.dosgi.dsw.service.RemoteServiceAdminCore.exportService(RemoteServiceAdminCore.java:245)
> at
> org.apache.cxf.dosgi.dsw.service.RemoteServiceAdminInstance$1.run(RemoteServiceAdminInstance.java:78)
> at
> org.apache.cxf.dosgi.dsw.service.RemoteServiceAdminInstance$1.run(RemoteServiceAdminInstance.java:71)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.apache.cxf.dosgi.dsw.service.RemoteServiceAdminInstance.exportService(RemoteServiceAdminInstance.java:71)
> at
> org.apache.cxf.dosgi.dsw.service.RemoteServiceAdminInstance.exportService(RemoteServiceAdminInstance.java:40)
> at
> org.apache.cxf.dosgi.topologymanager.TopologyManager$2.run(TopologyManager.java:259)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
> {noformat}
> The cause for this is that the
> "{{org.springframework.beans.BeanUtils#getPropertyDescriptor}}" method
> returns "{{null}}" for the property "{{classLoader}}". However, this is not a
> real problem, so as a test I just modified the
> "{{org.apache.cxf.aegis.type.basic.BeanTypeInfo#initializeProperties}}"
> method to omit any {{PropertyDescriptor}} that is {{null}}.
> So far so good, but immediately afterwards, I get the next error:
> {noformat}
> java.lang.NullPointerException
> at java.lang.reflect.Array.newArray(Native Method)
> at java.lang.reflect.Array.newInstance(Array.java:52)
> at
> org.apache.cxf.aegis.type.TypeUtil.getTypeRelatedClass(TypeUtil.java:261)
> at
> org.apache.cxf.aegis.type.AbstractTypeCreator.createTypeForClass(AbstractTypeCreator.java:108)
> at
> org.apache.cxf.aegis.type.AbstractTypeCreator.createType(AbstractTypeCreator.java:395)
> at
> org.apache.cxf.aegis.type.basic.BeanTypeInfo.getType(BeanTypeInfo.java:196)
> at
> org.apache.cxf.aegis.type.basic.BeanType.getDependencies(BeanType.java:532)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.addDependencies(AegisDatabinding.java:394)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.initializeMessage(AegisDatabinding.java:370)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.initializeOperation(AegisDatabinding.java:273)
> at
> org.apache.cxf.aegis.databinding.AegisDatabinding.initialize(AegisDatabinding.java:239)
> at
> org.apache.cxf.service.factory.AbstractServiceFactoryBean.initializeDataBindings(AbstractServiceFactoryBean.java:86)
> at
> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:438)
> at
> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:501)
> at
> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:241)
> at
> org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:101)
> at
> org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:157)
> at
> org.apache.cxf.aegis.AbstractAegisTest.createService(AbstractAegisTest.java:151)
> at
> org.apache.cxf.aegis.type.java5.GenericsTypeTest.testCreateService(GenericsTypeTest.java:85)
> 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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at
> org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
> at
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:119)
> at
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:101)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.maven.surefire.booter.ProviderFactory$ClassLoaderProxy.invoke(ProviderFactory.java:103)
> at $Proxy0.invoke(Unknown Source)
> at
> org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:150)
> at
> org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcess(SurefireStarter.java:91)
> at
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:69)
> {noformat}
> \\
> This one is for the property "{{java.lang.Class#enumConstants}}" and I guess
> there are even more errors coming.
> What I had in ming was to substitute "java.lang.Class" with
> "java.lang.String" on-the-fly, so that there is an automatic default
> handling, e.g.:
> * {{public <T extends Serializable> T createInstance(Class<T> type)}} will
> become something like {{public Serializable createInstance(String type)}}
> * {{public Class getType(Serializable obj)}} will become something like
> {{public String getType(Serializable obj)}}
> ...so that CXF internally does something like
> "{{ClassLoaderUtils.loadClass(type, refClass);}}" and "{{type.getName()}}"
> for the other way around.
> What do you think?
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