Error installing JDV. org.jboss.modules.ModuleNotFoundException: javax.api:main

[mfkh5]

I haven't found any other post with this error. See the attached installation logs for more detail.

This is from running the datavirt 6.4 installer jar file and choosing as the install location, a folder in which I already have had EAP installed (I also have previously installed jboss dev studio).
My console's output:

C:\WINDOWS\system32>java -jar "C:\Users\MarcFournier_txozhm9\Downloads\jboss-dv-6.4.0-installer.jar"

java.io.IOException: Stream closed

        at java.io.BufferedWriter.ensureOpen(Unknown Source)

        at java.io.BufferedWriter.flushBuffer(Unknown Source)

        at java.io.BufferedWriter.flush(Unknown Source)

        at com.redhat.installer.asconfiguration.keystore.processpanel.KeystoreGenerator$1.run(KeystoreGenerator.java:287)

        at java.lang.Thread.run(Unknown Source)

May 29, 2018 8:55:09 AM org.xnio.Xnio <clinit>

INFO: XNIO Version 3.0.13.GA-redhat-1

May 29, 2018 8:55:09 AM org.xnio.nio.NioXnio <clinit>

INFO: XNIO NIO Implementation Version 3.0.13.GA-redhat-1

May 29, 2018 8:55:09 AM org.jboss.remoting3.EndpointImpl <clinit>

INFO: JBoss Remoting version 3.3.4.Final-redhat-1

java.io.IOException: Unable to delete file: C:\Users\MarcFournier_txozhm9\EAP-6.4.0\standalone\configuration\mgmt-users.properties

        at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:1919)

        at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1399)

        at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:1331)

        at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:1910)

        at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1399)

        at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:1331)

        at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:1910)

        at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1399)

        at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:1331)

        at com.redhat.installer.layering.action.ExistingInstallationBackupAction.cleanUp(ExistingInstallationBackupAction.java:123)

        at com.izforge.izpack.util.Housekeeper.runClients(Housekeeper.java:132)

        at com.izforge.izpack.util.Housekeeper.shutDown(Housekeeper.java:162)

        at com.izforge.izpack.installer.InstallerFrame.exit(InstallerFrame.java:1283)

        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.navigate(InstallerFrame.java:1790)

        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.access$100(InstallerFrame.java:1755)

        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler$1.run(InstallerFrame.java:1772)

        at java.lang.Thread.run(Unknown Source)