SU 5.1.2 Maven plugin RuntimeException:java.lang.ClassCastException:

Following problem ocurrs during execution of maven project with soapUi pro 5.1.2 plugin.

Thanks in advance for help with this issue. 

RuntimeException:java.lang.ClassCastException: org.apache.xmlbeans.impl.xpath.saxon.XBeansXPath cannot be cast to org.apache.xmlbeans.impl.store.SaxonXBeansDelegate$SelectPathInterface]

Pom file:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.tieto.soapUI</groupId>
	<artifactId>soapui-maven2-plugin</artifactId>
	<packaging>jar</packaging>
	<version>2.1</version>
	<name>HelenWSBasicMavenProject</name>
	<description>HelenWSBasicMavenProject</description>
	<url>http://maven.apache.org</url>
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<findbugs.version>2.5.2</findbugs.version>
		<checkstyle.version>2.9.1</checkstyle.version>
		<surefire.reportplugin.version>2.2</surefire.reportplugin.version>
		<cobertura.version>2.5.2</cobertura.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>com.fifesoft</groupId>
			<artifactId>rsyntaxtextarea</artifactId>
			<version>2.0.7</version>
		</dependency>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.17</version>
		</dependency>
	</dependencies>
	<pluginRepositories>
		<pluginRepository>
			<id>codehausPluginRepository</id>
			<url>https://nexus.codehaus.org/content/groups/snapshots-group/org/codehaus/mojo/</url>
		</pluginRepository>
		<pluginRepository>
			<id>SmartBearPluginRepository</id>
			<url>http://www.soapui.org/repository/maven2/</url>
		</pluginRepository>
		<pluginRepository>
			<id>mvnPluginRepository</id>
			<url>http://mirrors.ibiblio.org/maven/mule/dependencies/maven2/</url>
		</pluginRepository>
		<pluginRepository>
			<id>apache.snapshots</id>
			<name>Apache Development Snapshot Repository</name>
			<url>https://repository.apache.org/content/repositories/snapshots/</url>
			<releases>
				<enabled>false</enabled>
			</releases>
			<snapshots>
				<enabled>true</enabled>
			</snapshots>
		</pluginRepository>
	</pluginRepositories>
	<licenses>
		<license>
			<name>Oracle Technology Network Development and Distribution License Terms</name>
			<url>http://www.oracle.com/technology/software/htdocs/distlic.html</url>
		</license>
	</licenses>
	<build>
		<plugins>
			<plugin>
				<groupId>com.smartbear.soapui</groupId>
				<artifactId>soapui-pro-maven-plugin</artifactId>
				<version>5.1.2</version>
				<dependencies>
					<dependency>
						<groupId>oracle</groupId>
						<artifactId>ojdbc14</artifactId>
						<version>10.2.0.2</version>
					</dependency>
					<dependency>
						<groupId>org.reflections</groupId>
						<artifactId>reflections</artifactId>
						<version>0.9.9-RC1</version>
					</dependency>
					<dependency>
						<groupId>org.apache.poi</groupId>
						<artifactId>poi-ooxml</artifactId>
						<version>3.10-FINAL</version>
					</dependency>
					<dependency>
						<groupId>mysql</groupId>
						<artifactId>mysql-connector-java</artifactId>
						<version>5.1.6</version>
					</dependency>
					<dependency>
						<groupId>com.jgoodies</groupId>
						<artifactId>jgoodies-binding</artifactId>
						<version>2.7.0</version>
					</dependency>
					<dependency>
						<groupId>com.jgoodies</groupId>
						<artifactId>jgoodies-validation</artifactId>
						<version>2.4.2</version>
					</dependency>
					<dependency>
						<groupId>com.jgoodies</groupId>
						<artifactId>jgoodies-forms</artifactId>
						<version>1.6.0</version>
					</dependency>
					<dependency>
						<groupId>com.jgoodies</groupId>
						<artifactId>jgoodies-looks</artifactId>
						<version>2.5.2</version>
					</dependency>
				</dependencies>
				<executions>
					<execution>
						<phase>test</phase>
						<goals>
							<goal>test</goal>
						</goals>
						<configuration>
							<argLine>-Xms1024m -Xmx2048m -XX:smileytongue:ermSize=150m
								-XX:+HeapDumpOnOutOfMemoryError</argLine>
							<id>HelenWSBasicMavenProject</id>
							<projectFile>src/test/soapui/HelenWebServiceAutomation-soapui-project.xml</projectFile>
							<outputFolder>${project.build.directory}/surefire-reports</outputFolder>
							<junitReport>true</junitReport>
							<exportAll>true</exportAll>
							<printReport>true</printReport>
							<projectProperties>
							</projectProperties>
							<soapuiProperties>
								<property>
									<name>soapui.logroot</name>
									<value>${project.build.directory}/soapui-logs/</value>
								</property>
								<property>
									<name>soapui.ext.libraries</name>
									<value>ext</value>
								</property>
								<property>
									<name>soapui.scripting.library</name>
									<value>scripts</value>
								</property>
								<property>
									<name>soapui.home</name>
									<value>${env.SOAPUI_HOME}/bin</value>
								</property>
							</soapuiProperties>
							<inputProject />
							<outputProject />
						</configuration>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-clean-plugin</artifactId>
				<version>2.6.1</version>
				<configuration>
					<filesets>
						<fileset>
							<directory>.</directory>
							<includes>
								<include>**/*.log</include>
							</includes>
						</fileset>
						<fileset>
							<directory>./report</directory>
						</fileset>
					</filesets>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>findbugs-maven-plugin</artifactId>
				<version>${findbugs.version}</version>
			</plugin>
			<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>cobertura-maven-plugin</artifactId>
				<version>${cobertura.version}</version>
				<configuration>
					<formats>
						<format>xml</format>
					</formats>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<reporting>
		<plugins>
			<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>findbugs-maven-plugin</artifactId>
				<version>${findbugs.version}</version>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-checkstyle-plugin</artifactId>
				<version>${checkstyle.version}</version>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-report-plugin</artifactId>
				<version>${surefire.reportplugin.version}</version>
			</plugin>
			<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>cobertura-maven-plugin</artifactId>
				<version>${cobertura.version}</version>
				<configuration>
					<formats>
						<format>xml</format>
					</formats>
				</configuration>
			</plugin>
		</plugins>
	</reporting>
	<organization>
		<name>patios.com</name>
	</organization>
</project>

Jenkins error:

[ERROR] ----------------- Messages ------------------------------
[ERROR] [Check for existence of [ReturnCode]] XPathContains assertion failed for path [declare namespace ns1='http://schemas.forum.com/ForumService/V150';
[ERROR] exists( //ns1:CheckIsAliveOutput/ns1:ReturnCode)] : RuntimeException:java.lang.ClassCastException: org.apache.xmlbeans.impl.xpath.saxon.XBeansXPath cannot be cast to org.apache.xmlbeans.impl.store.SaxonXBeansDelegate$SelectPathInterface