XML Serialization related JDK resources missing from test classpath when plugin is included

[patflynn]

When I include this plugin I get some unexpected test failures.

I've created a sample project to show the issue:
https://github.com/patflynn/gradle-intellij-plugin-classpath-bug

running gradlew test will cause:
java.lang.ExceptionInInitializerError
at TestRtClasspath.testToXMLStreamOnClassPath(TestRtClasspath.java:10)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:64)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:106)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:360)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.RuntimeException: The resource [ com.sun.org.apache.xml.internal.serializer.XMLEntities ] could not load: java.lang.RuntimeException: The resource [ com.sun.org.apache.xml.internal.serializer.XMLEntities ] could not be found.
com.sun.org.apache.xml.internal.serializer.XMLEntities
com.sun.org.apache.xml.internal.serializer.XMLEntities java.lang.RuntimeException: The resource [ com.sun.org.apache.xml.internal.serializer.XMLEntities ] could not be found.
com.sun.org.apache.xml.internal.serializer.XMLEntities
at com.sun.org.apache.xml.internal.serializer.CharInfo.(CharInfo.java:291)
at com.sun.org.apache.xml.internal.serializer.CharInfo.(CharInfo.java:51)
at com.sun.org.apache.xml.internal.serializer.CharInfo$1.run(CharInfo.java:470)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.org.apache.xml.internal.serializer.CharInfo.getCharInfoBasedOnPrivilege(CharInfo.java:467)
at com.sun.org.apache.xml.internal.serializer.CharInfo.getCharInfo(CharInfo.java:529)
at com.sun.org.apache.xml.internal.serializer.ToXMLStream.(ToXMLStream.java:55)
... 44 more

TestRtClasspath > testToXMLStreamOnClassPath FAILED
java.lang.ExceptionInInitializerError at TestRtClasspath.java:10
Caused by: java.lang.RuntimeException at TestRtClasspath.java:10

If you remove the:
plugins {
id "org.jetbrains.intellij" version "0.0.27"
}

declaration then the test passes.

[patflynn]

This looks like it's fixed in 0.0.28