ReadyApi-SoapUI-Maven Swagger Petstore Failed to load SoapUI project file

Hi,

I have created TestSuite while importing using Swagger Petstore API.

When executing in TestRunner reports of API testing are generated.

After that I exported project like zip file and extract the xml file. Configured the pom.xml to use the file under projectFile.

        <build>
                <plugins>
                        <plugin>
                                <groupId>com.smartbear.soapui</groupId>
                                <artifactId>soapui-pro-maven-plugin</artifactId>
                                <version>5.1.2</version>
                                <configuration>
                                        <junitReport>true</junitReport>
                                        <projectFile>Petstore-readyapi-project.xml</projectFile>
                                        <outputFolder>target/soapui</outputFolder>
                                </configuration>

                                <executions>
                                        <execution>
                                                <phase>test</phase>
                                                        <goals>
                                                                <goal>test</goal>
                                                        </goals>
                                        </execution>
                                </executions>
                        </plugin>
                </plugins>
        </build>

When running mvn clean test I get error java.lang.Exception: Failed to load SoapUI project file

com.eviware.soapui.support.SoapUIException: Failed to load project from file [file:/root/soapui/soapui/Petstore-readyapi-project.xml]
at com.eviware.soapui.impl.wsdl.WsdlProjectPro.loadProject(SourceFile:321)
at com.eviware.soapui.impl.wsdl.WsdlProject.<init>(WsdlProject.java:220)
at com.eviware.soapui.impl.wsdl.WsdlProjectPro.<init>(SourceFile:160)
at com.eviware.soapui.impl.wsdl.WsdlProjectProFactory.createNew(SourceFile:28)
at com.eviware.soapui.impl.wsdl.WsdlProjectProFactory.createNew(SourceFile:16)
at com.eviware.soapui.tools.SoapUITestCaseRunner.runRunner(SoapUITestCaseRunner.java:331)
at com.eviware.soapui.tools.AbstractSoapUIRunner.run(AbstractSoapUIRunner.java:188)
at com.eviware.soapui.maven2.TestMojo.execute(TestMojo.java:134)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
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:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.NullPointerException
at com.eviware.soapui.impl.wsdl.InterfaceFactoryRegistry.build(InterfaceFactoryRegistry.java:51)
at com.eviware.soapui.impl.wsdl.WsdlProjectPro.loadProject(SourceFile:218)
... 29 more
[ERROR] java.lang.Exception: Failed to load SoapUI project file [Petstore-readyapi-project.xml]

If I create WADL project and create simple TestSuite and follow the same procedure to export and run under maven, reports are generated and everything is ok.

Why projects created with Swagger definitions are unusable with soapui-maven-plugin ?