When generating a website with mvn clean site site:deploy, I will consistently get a ClassCastException when jenkins is trying to parse the junit surefire reports.
This does not happen if I run the command from the command-line, and interestingly enough it doesn't happen for the non-site build (e.g. mvn clean deploy)

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T E S T S
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Running com.ften.creditpool.latency.ThroughputStatsTest
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.566 sec
Running com.ften.creditpool.latency.ThroughputCreditPoolTest
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.015 sec
Running com.ften.creditpool.latency.MinMaxAverageTest
Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.008 sec
Running com.ften.creditpool.audit.AuditingCreditPoolTest
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.012 sec
Running com.ften.creditpool.CreditPoolBeanTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.013 sec

Results :

Tests run: 29, Failures: 0, Errors: 0, Skipped: 0

mojoSucceeded org.apache.maven.plugins:maven-surefire-plugin:2.12(default-test)
[JENKINS] Recording test results
hudson.util.IOException2: Failed to read /var/lib/jenkins/jobs/risk-alerts_site/workspace/credit-pool/target/surefire-reports/TEST-com.ften.creditpool.CreditPoolBeanTest.xml
at hudson.tasks.junit.TestResult.parse(TestResult.java:244)
at hudson.tasks.junit.TestResult.parse(TestResult.java:163)
at hudson.maven.reporters.SurefireArchiver.postExecute(SurefireArchiver.java:141)
at hudson.maven.Maven3Builder$MavenExecutionListener.recordMojoEnded(Maven3Builder.java:421)
at hudson.maven.Maven3Builder$MavenExecutionListener.mojoSucceeded(Maven3Builder.java:403)
at org.apache.maven.lifecycle.internal.DefaultExecutionEventCatapult.fire(DefaultExecutionEventCatapult.java:87)
at org.apache.maven.lifecycle.internal.DefaultExecutionEventCatapult.fire(DefaultExecutionEventCatapult.java:42)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:228)
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.MojoExecutor.executeForkedExecutions(MojoExecutor.java:365)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeForkedExecutions(DefaultLifecycleExecutor.java:173)
at org.apache.maven.reporting.exec.DefaultMavenReportExecutor.buildReportPlugin(DefaultMavenReportExecutor.java:284)
at org.apache.maven.reporting.exec.DefaultMavenReportExecutor.buildMavenReports(DefaultMavenReportExecutor.java:150)
at org.apache.maven.plugins.site.AbstractSiteRenderingMojo.getReports(AbstractSiteRenderingMojo.java:247)
at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:121)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
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:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.jvnet.hudson.maven3.launcher.Maven3Launcher.main(Maven3Launcher.java:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:329)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:239)
at org.jvnet.hudson.maven3.agent.Maven3Main.launch(Maven3Main.java:158)
at hudson.maven.Maven3Builder.call(Maven3Builder.java:98)
at hudson.maven.Maven3Builder.call(Maven3Builder.java:64)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:287)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.dom4j.DocumentException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory Nested exception: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.dom4j.io.SAXReader.read(SAXReader.java:264)
at hudson.tasks.junit.SuiteResult.parse(SuiteResult.java:112)
at hudson.tasks.junit.TestResult.parse(TestResult.java:227)
... 44 more
Caused by: java.lang.ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory
at org.dom4j.DocumentFactory.getInstance(DocumentFactory.java:97)
at org.dom4j.io.SAXReader.getDocumentFactory(SAXReader.java:645)
at org.dom4j.io.SAXReader.createContentHandler(SAXReader.java:969)
at org.dom4j.io.SAXReader.read(SAXReader.java:449)
... 47 more
forkedProjectSucceeded com.ften.creditpool:credit-pool:0.0.2-SNAPSHOT