wadl2java fails with NullPointerException if status codes of multiple response
elements are not in ascending numerical order
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Key: CXF-3759
URL: https://issues.apache.org/jira/browse/CXF-3759
Project: CXF
Issue Type: Bug
Affects Versions: 2.4.2
Reporter: Oliver Jelinski
Priority: Minor
Strangely, if I have the status codes in the response not in ascending order in
the wadl-document, wadl2java fails with NPE.
For example the following works correctly:
<?xml version="1.0" encoding="UTF-8"?>
<application
xmlns="http://wadl.dev.java.net/2009/02";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://wadl.dev.java.net/2009/02 wadl.xsd" >
<resources base="http://localhost:9900/MyService";>
<resource path="/MyResource" id="my.Resource">
<method name="GET" id="putSomething">
<request />
<response status="200" />
<response status="400" />
</method>
</resource>
</resources>
</application>
... while the following doesn't:
<?xml version="1.0" encoding="UTF-8"?>
<application
xmlns="http://wadl.dev.java.net/2009/02";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://wadl.dev.java.net/2009/02 wadl.xsd" >
<resources base="http://localhost:9900/MyService";>
<resource path="/MyResource" id="my.Resource">
<method name="GET" id="putSomething">
<request />
<response status="400" />
<response status="200" />
</method>
</resource>
</resources>
</application>
... but throws the following exception:
[ERROR] Failed to execute goal
org.apache.cxf:cxf-wadl2java-plugin:2.4.2:wadl2java (generate-sources) on
project XXX: java.lang.NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal
org.apache.cxf:cxf-wadl2java-plugin:2.4.2:wadl2java (generate-sources) on
project XXX: java.lang.NullPointerException
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at
org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at
org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at
org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.MojoExecutionException:
java.lang.NullPointerException
at
org.apache.cxf.maven_plugin.wadlto.AbstractCodeGeneratorMojo.callCodeGenerator(AbstractCodeGeneratorMojo.java:458)
at
org.apache.cxf.maven_plugin.wadlto.WADL2JavaMojo.execute(WADL2JavaMojo.java:101)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
... 19 more
Caused by: org.apache.cxf.tools.common.ToolException:
java.lang.NullPointerException
at
org.apache.cxf.tools.wadlto.jaxrs.JAXRSContainer.execute(JAXRSContainer.java:75)
at
org.apache.cxf.tools.common.toolspec.ToolRunner.runTool(ToolRunner.java:103)
at org.apache.cxf.tools.wadlto.WADLToJava.run(WADLToJava.java:65)
at org.apache.cxf.tools.wadlto.WADLToJava.run(WADLToJava.java:57)
at
org.apache.cxf.maven_plugin.wadlto.AbstractCodeGeneratorMojo.callCodeGenerator(AbstractCodeGeneratorMojo.java:455)
... 22 more
Caused by: java.lang.NullPointerException
at
org.apache.cxf.helpers.DOMUtils.getChildrenWithName(DOMUtils.java:341)
at
org.apache.cxf.jaxrs.ext.codegen.SourceGenerator.writeResponseType(SourceGenerator.java:598)
at
org.apache.cxf.jaxrs.ext.codegen.SourceGenerator.writeResourceMethod(SourceGenerator.java:505)
at
org.apache.cxf.jaxrs.ext.codegen.SourceGenerator.writeMethods(SourceGenerator.java:416)
at
org.apache.cxf.jaxrs.ext.codegen.SourceGenerator.writeResourceClass(SourceGenerator.java:331)
at
org.apache.cxf.jaxrs.ext.codegen.SourceGenerator.generateResourceClasses(SourceGenerator.java:208)
at
org.apache.cxf.jaxrs.ext.codegen.SourceGenerator.generateSource(SourceGenerator.java:173)
at
org.apache.cxf.tools.wadlto.jaxrs.JAXRSContainer.processWadl(JAXRSContainer.java:128)
at
org.apache.cxf.tools.wadlto.jaxrs.JAXRSContainer.execute(JAXRSContainer.java:58)
at
org.apache.cxf.tools.wadlto.jaxrs.JAXRSContainer.execute(JAXRSContainer.java:67)
... 26 more
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