security.provider.1=org.bouncycastle.jcajce.provider.BouncyCastleFipsProvider
security.provider.2=SUN
security.provider.3=SunRsaSign
security.provider.4=SunEC
security.provider.5=SunJSSE BCFIPS
security.provider.6=SunJCE
security.provider.7=SunJGSS
security.provider.8=SunSASL
security.provider.9=XMLDSig
security.provider.10=SunPCSC
security.provider.11=JdkLDAP
security.provider.12=JdkSASL
security.provider.13=SunPKCS11

/subsystem=logging/console-handler=CONSOLE:write-attribute(name=level, value=ALL)
/subsystem=logging/logger=org.wildfly.extension.elytron:add(level=ALL)

=========================================================================

  JBoss Bootstrap Environment

  JBOSS_HOME: /home/mchoma/eap/7.2.0.EL12.CR1/jboss-eap-7.2

  JAVA: /opt/java/jdk-9.0.1_bcfips/bin/java

  JAVA_OPTS:  -server -Xms1303m -Xmx1303m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -Djava.net.preferIPv4Stack=true -cp /home/mchoma/.m2/repository/org/bouncycastle/fips/bc-fips/1.0.0/bc-fips-1.0.0.jar -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -agentlib:jdwp=transport=dt_socket,address=8787,server=y,suspend=n

=========================================================================
...
09:20:16,630 TRACE [org.wildfly.extension.elytron] (MSC service thread 1-3) No provider identified for name [null] and algorithm [BCFKS] between [SUN version 9, ApacheXMLDSig version 2.11, SunRsaSign version 9, SunEC version 9, SunJSSE version 9, SunJCE version 9, SunJGSS version 9, SunSASL version 9, XMLDSig version 9, SunPCSC version 9, JdkLDAP version 9, JdkSASL version 9, SunPKCS11 version 9, SunDeploy-MozillaJSS version 1.5, WildFlyElytron version 1.0, TLSP version 1.0, openssl version 1.0]
09:20:16,632 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-3) MSC000001: Failed to start service org.wildfly.security.key-store.bcfks_keystore: org.jboss.msc.service.StartException in service org.wildfly.security.key-store.bcfks_keystore: WFLYELY00004: Unable to start the service.
	at org.wildfly.extension.elytron@4.0.0.CR1-redhat-1-20180228//org.wildfly.extension.elytron.KeyStoreService.start(KeyStoreService.java:148)
	at org.jboss.msc@1.3.2.Final-redhat-1//org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1714)
	at org.jboss.msc@1.3.2.Final-redhat-1//org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1693)
	at org.jboss.msc@1.3.2.Final-redhat-1//org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1540)
	at org.jboss.threads@2.3.1.Final-redhat-1//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at org.jboss.threads@2.3.1.Final-redhat-1//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985)
	at org.jboss.threads@2.3.1.Final-redhat-1//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487)
	at org.jboss.threads@2.3.1.Final-redhat-1//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1378)
	at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: org.jboss.msc.service.StartException in anonymous service: WFLYELY00012: No suitable provider found for type 'BCFKS'
	at org.wildfly.extension.elytron@4.0.0.CR1-redhat-1-20180228//org.wildfly.extension.elytron.KeyStoreService.resolveProvider(KeyStoreService.java:156)
	at org.wildfly.extension.elytron@4.0.0.CR1-redhat-1-20180228//org.wildfly.extension.elytron.KeyStoreService.start(KeyStoreService.java:110)
	... 8 more

import java.security.*;

public class TestBCLoaded {
    public static void main(String[] args) {
        Provider p = Security.getProvider("org.bouncycastle.jcajce.provider.BouncyCastleFipsProvider");
        if (p==null){
                System.out.println("Not Loaded: org.bouncycastle.jcajce.provider.BouncyCastleFipsProvider");
        }

        p = Security.getProvider("BouncyCastleFipsProvider");
        if (p==null){
                System.out.println("Not Loaded: BouncyCastleFipsProvider");
        }

        p = Security.getProvider("BCFIPS");
        if (p==null){
                System.out.println("Not Loaded: BCFIPS");
        } else {
           System.out.println("Provider name is " + p.getName());
           System.out.println("Provider version # is " + p.getVersion());
           System.out.println("Provider info is " + p.getInfo());
        }

    }
}

[mchoma@localhost jdk9Test]$ java -cp .:/home/mchoma/.m2/repository/org/bouncycastle/fips/bc-fips/1.0.0/bc-fips-1.0.0.jar TestBCLoaded 
Not Loaded: org.bouncycastle.jcajce.provider.BouncyCastleFipsProvider
Not Loaded: BouncyCastleFipsProvider
Provider name is BCFIPS
Provider version # is 0.9
Provider info is BouncyCastle Security Provider (FIPS edition) v0.90