When I force the build, it succeeds.
When the build is triggered by an SCM change, the job appears to build successfully until the very end of the "mvn clean install site" command where I get the following stack trace, which seems awfully familiar to some old lazily loaded job issues that I had a few versions ago...

Waiting for Jenkins to finish collecting data
mavenExecutionResult exceptions not empty
message : Internal error: java.lang.ArrayIndexOutOfBoundsException: Assertion error: failing to load #3 DESC: lo=17,hi=3,size=106,size2=106
cause : Assertion error: failing to load #3 DESC: lo=17,hi=3,size=106,size2=106
Stack trace :
org.apache.maven.InternalErrorException: Internal error: java.lang.ArrayIndexOutOfBoundsException: Assertion error: failing to load #3 DESC: lo=17,hi=3,size=106,size2=106
at org.apache.maven.lifecycle.internal.BuilderCommon.handleBuildError(BuilderCommon.java:128)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:95)
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:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
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:326)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: Assertion error: failing to load #3 DESC: lo=17,hi=3,size=106,size2=106
at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:418)
at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:210)
at hudson.tasks.Fingerprinter$FingerprintAction.onLoad(Fingerprinter.java:349)
at hudson.model.Run.onLoad(Run.java:303)
at hudson.maven.MavenModuleSetBuild.onLoad(MavenModuleSetBuild.java:140)
at hudson.model.RunMap.retrieve(RunMap.java:221)
at hudson.model.RunMap.retrieve(RunMap.java:59)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:638)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:621)
at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:432)
at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:210)
at hudson.tasks.Fingerprinter$FingerprintAction.onLoad(Fingerprinter.java:349)
at hudson.model.Run.onLoad(Run.java:303)
at hudson.maven.MavenModuleSetBuild.onLoad(MavenModuleSetBuild.java:140)
at hudson.model.RunMap.retrieve(RunMap.java:221)
at hudson.model.RunMap.retrieve(RunMap.java:59)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:638)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:621)
at jenkins.model.lazy.AbstractLazyLoadRunMap.getById(AbstractLazyLoadRunMap.java:498)
at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:472)
at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:210)
at hudson.tasks.Fingerprinter$FingerprintAction.onLoad(Fingerprinter.java:349)
at hudson.model.Run.onLoad(Run.java:303)
at hudson.maven.MavenModuleSetBuild.onLoad(MavenModuleSetBuild.java:140)
at hudson.model.RunMap.retrieve(RunMap.java:221)
at hudson.model.RunMap.retrieve(RunMap.java:59)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:638)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:621)
at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:432)
at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:210)
at hudson.tasks.Fingerprinter$FingerprintAction.onLoad(Fingerprinter.java:349)
at hudson.model.Run.onLoad(Run.java:303)
at hudson.maven.MavenModuleSetBuild.onLoad(MavenModuleSetBuild.java:140)
at hudson.model.RunMap.retrieve(RunMap.java:221)
at hudson.model.RunMap.retrieve(RunMap.java:59)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:638)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:621)
at jenkins.model.lazy.AbstractLazyLoadRunMap.getById(AbstractLazyLoadRunMap.java:498)
at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:472)
at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:210)
at hudson.tasks.Fingerprinter$FingerprintAction.onLoad(Fingerprinter.java:349)
at hudson.model.Run.onLoad(Run.java:303)
at hudson.maven.MavenModuleSetBuild.onLoad(MavenModuleSetBuild.java:140)
at hudson.model.RunMap.retrieve(RunMap.java:221)
at hudson.model.RunMap.retrieve(RunMap.java:59)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:638)
at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:621)
at jenkins.model.lazy.AbstractLazyLoadRunMap.getById(AbstractLazyLoadRunMap.java:498)
at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:472)
at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:210)
at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:103)
at hudson.plugins.analysis.core.BuildHistory.getAction(BuildHistory.java:112)
at hudson.plugins.analysis.core.BuildHistory.getReferenceAction(BuildHistory.java:98)
at hudson.plugins.analysis.core.BuildHistory.getReferenceAnnotations(BuildHistory.java:84)
at hudson.plugins.analysis.core.BuildResult.initialize(BuildResult.java:262)
at hudson.plugins.analysis.core.BuildResult.<init>(BuildResult.java:215)
at hudson.plugins.tasks.TasksResult.<init>(TasksResult.java:84)
at hudson.plugins.tasks.TasksResult.<init>(TasksResult.java:54)
at hudson.plugins.tasks.TasksMavenResultAction.createAggregatedAction(TasksMavenResultAction.java:79)
at hudson.maven.MavenModuleSetBuild.notifyModuleBuild(MavenModuleSetBuild.java:524)
at hudson.maven.MavenBuild$ProxyImpl2.end(MavenBuild.java:491)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.model.Executor$1.call(Executor.java:531)
at hudson.util.InterceptingProxy$1.invoke(InterceptingProxy.java:23)
at $Proxy227.end(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:275)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:256)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:215)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:326)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Sending e-mails to: Benjamin.McDonie@ultra-prologic.com
channel stopped
[WARNINGS] Skipping publisher since build result is FAILURE
[ANALYSIS-COLLECTOR] Skipping publisher since build result is FAILURE
Skipping Cobertura coverage report as build was not UNSTABLE or better ...
Skipping sonar analysis due to bad build status FAILURE
Sending e-mails to: Benjamin.McDonie@ultra-prologic.com
Finished: FAILURE