Saving configuration of a job is broken by exception from starteam plugin[1].
It does not save the configuration properly[2].
For already configured jobs the StarTeam seems to be working okay, but new projcts can't be properly created and old job can't change configuration.

[1]
org.kohsuke.stapler.NoStaplerConstructorException: There's no @DataBoundConstructor on any constructor of class hudson.plugins.starteam.StarTeamSCM
at org.kohsuke.stapler.RequestImpl.loadConstructorParamNames(RequestImpl.java:461)
at org.kohsuke.stapler.RequestImpl.bindParameters(RequestImpl.java:285)
at org.kohsuke.stapler.RequestImpl.bindParameters(RequestImpl.java:281)
at hudson.plugins.starteam.StarTeamSCM$StarTeamSCMDescriptorImpl.newInstance(StarTeamSCM.java:157)
at hudson.plugins.starteam.StarTeamSCM$StarTeamSCMDescriptorImpl.newInstance(StarTeamSCM.java:135)
at hudson.scm.SCMS.parseSCM(SCMS.java:66)
at hudson.model.AbstractProject.submit(AbstractProject.java:1505)
at hudson.model.Project.submit(Project.java:191)
at hudson.model.FreeStyleProject.submit(FreeStyleProject.java:97)
at hudson.model.Job.doConfigSubmit(Job.java:1050)
at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:555)
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.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:235)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:116)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:57)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:75)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:525)
at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:181)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:525)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:441)
at org.kohsuke.stapler.Stapler.service(Stapler.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
...

[2]
<?xml version='1.0' encoding='UTF-8'?>
<project>
<actions/>
<description></description>
<logRotator>
<daysToKeep>2</daysToKeep>
<numToKeep>-1</numToKeep>
<artifactDaysToKeep>-1</artifactDaysToKeep>
<artifactNumToKeep>-1</artifactNumToKeep>
</logRotator>
<keepDependencies>false</keepDependencies>
<properties>
<hudson.plugins.disk__usage.DiskUsageProperty/>
</properties>
<canRoam>true</canRoam>
<disabled>false</disabled>
<blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
<triggers class="vector"/>
<concurrentBuild>false</concurrentBuild>
<builders>
<hudson.tasks.Maven>
<targets>install site</targets>
<mavenName>Apache Maven 2.2.1</mavenName>
<usePrivateRepository>false</usePrivateRepository>
</hudson.tasks.Maven>
</builders>
<publishers/>
<buildWrappers/>
</project>