Maven build test failure

Hi - I'm new to SOAPUI source. Have followed the instructions to download it here: https://github.com/SmartBear/soapui. When running

mvn clean install

it seems I get all the dependencies but 1 test case fails (results below).

Does anyone know if this is a SOAPUI code issue in git or is there something wrong with my environment?

Thanks

Results :

Failed tests: givenAutomaticProxyDetectionAndNoProxyAvailableThenSetDirectProxyTypecom.eviware.soapui.impl.wsdl.support.http.ProxyUtilsTestCase): ]

Tests in error:
doesNotRefreshAccessTokenEvenIfExpiredWhenManualExpirationTimeIsSelected(com.eviware.soapui.impl.wsdl.submit.filters.OAuth2RequestFilterTest)
refreshAccessTokenIfManualExpirationTimeIsSetAndManualExpirationTimeHasPassed(com.eviware.soapui.impl.wsdl.submit.filters.OAuth2RequestFilterTest)
buildsValidStartSequenceRequestWithVersion10(com.eviware.soapui.impl.wsdl.support.wsrm.WsrmUtilsTest): The file at file:/C:/Users/Ak/Documents/Java/soapui/soapui/target/test-classes/xsds/wsrm-1.0-schema-200502.xsd does not contain a valid XML schema
buildsValidStartSequenceRequest(com.eviware.soapui.impl.wsdl.support.wsrm.WsrmUtilsTest): The file at file:/C:/Users/Ak/Documents/Java/soapui/soapui/target/test-classes/xsds/wsrm-1.1-schema-200702.xsd does not contain a valid XML
schema buildsValidStartSequenceRequestWhenOfferEndpointIsSetWithVersion10(com.eviware.soapui.impl.wsdl.support.wsrm.WsrmUtilsTest): The file at file:/C:/Users/Ak/Documents/Java/soapui/soapui/target/test-classes/xsds/wsrm-1.0-schema-200502.xsd does not contain a valid XML schema buildsValidStartSequenceRequestWhenOfferEndpointIsSet(com.eviware.soapui.impl.wsdl.support.wsrm.WsrmUtilsTest): The file at file:/C:/Users/Ak/Documents/Java/soapui/soapui/target/test-classes/xsds/wsrm-1.1-schema-200702.xsd does not contain a valid XML schema populatesTimeTextFieldFromProfile(com.eviware.soapui.support.editor.inspectors

Tests run: 587, Failures: 1, Errors: 7, Skipped: 9

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] SoapUI ............................................ FAILURE [02:38 min]
[INFO] SoapUI Maven plugin ............................... SKIPPED
[INFO] SoapUI installer .................................. SKIPPED
[INFO] SoapUI Maven plugin tester ........................ SKIPPED
[INFO] SoapUI system test ................................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 02:39 min
[INFO] Finished at: 2014-05-22T16:19:36+10:00
[INFO] Final Memory: 15M/437M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.
12.1:test (default-test) on project soapui: There are test failures.