Two tests failed in jdk 9 dev nightly:
sun/security/pkcs11/KeyAgreement/SupportedDHKeys.java
sun/security/pkcs11/KeyAgreement/UnsupportedDHKeys.java

Both of them failed with similar reasons. Please refer the copy of log below:
----------System.out:(2/85)----------
libsoftokn3 version = 3.16. ECC Extended.
Beginning test run UnsupportedDHKeys...
----------System.err:(28/1972)*----------
java.security.ProviderException: Initialization failed
at sun.security.pkcs11.SunPKCS11.<init>(jdk.crypto.pkcs11@9-ea/SunPKCS11.java:381)
at sun.security.pkcs11.SunPKCS11$1.run(jdk.crypto.pkcs11@9-ea/SunPKCS11.java:112)
at sun.security.pkcs11.SunPKCS11$1.run(jdk.crypto.pkcs11@9-ea/SunPKCS11.java:109)
at java.security.AccessController.doPrivileged(java.base@9-ea/Native Method)
at sun.security.pkcs11.SunPKCS11.configure(jdk.crypto.pkcs11@9-ea/SunPKCS11.java:109)
at PKCS11Test.getSunPKCS11(PKCS11Test.java:151)
at PKCS11Test.testNSS(PKCS11Test.java:518)
at PKCS11Test.main(PKCS11Test.java:203)
at UnsupportedDHKeys.main(UnsupportedDHKeys.java:84)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base@9-ea/Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@9-ea/NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@9-ea/DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(java.base@9-ea/Method.java:531)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:110)
at java.lang.Thread.run(java.base@9-ea/Thread.java:804)
Caused by: java.io.IOException: The specified module could not be found.
C:\\Users\\aurora\\sandbox\\testbase\\jdk\\test\\sun\\security\\pkcs11\\nss\\lib\\windows-amd64\\softokn3.dll
at sun.security.pkcs11.wrapper.PKCS11.connect(jdk.crypto.pkcs11@9-ea/Native Method)
at sun.security.pkcs11.wrapper.PKCS11.<init>(jdk.crypto.pkcs11@9-ea/PKCS11.java:138)
at sun.security.pkcs11.wrapper.PKCS11.getInstance(jdk.crypto.pkcs11@9-ea/PKCS11.java:151)
at sun.security.pkcs11.SunPKCS11.<init>(jdk.crypto.pkcs11@9-ea/SunPKCS11.java:318)
... 14 more

JavaTest Message: Test threw exception: java.security.ProviderException: Initialization failed