Newer versions of Solaris 11 seem to offer functionality at pkcs11 level which allows for extra pkcs11 testing.

e.g. on Solaris 11.3, the following message is displayed:
====
Beginning test run TestKATForGCM...
Running test with provider SunPKCS11-Solaris (security manager disabled) ...
Skip testing SunPKCS11-Solaris, no support for AES/GCM/NoPadding
Completed test with provider SunPKCS11-Solaris (262 ms).
====

On Solaris 11.4, the SunPKCS11-Solaris provider is not skipped:
e.g.
====
Beginning test run TestKATForGCM...
Running test with provider SunPKCS11-Solaris (security manager disabled) ...
Failed Test Vector: key=11754cd72aec309bf52f7687212e8957, iv=3c819d9a9bed087615030b65, pt=null,aad=null, ct=null, tag=250327c674aaf477aef2675748cf6971
====

On Solaris 11.4, the following tests seem to fail :
sun/security/pkcs11/Cipher/ReinitCipher.java
sun/security/pkcs11/Cipher/Test4512704.java
sun/security/pkcs11/Cipher/TestCICOWithGCM.java
sun/security/pkcs11/Cipher/TestCICOWithGCMAndAAD.java
sun/security/pkcs11/Cipher/TestGCMKeyAndIvCheck.java
sun/security/pkcs11/Cipher/TestKATForGCM.java
sun/security/pkcs11/Cipher/TestSymmCiphers.java
sun/security/pkcs11/Cipher/TestSymmCiphersNoPad.java
sun/security/pkcs11/Mac/MacSameTest.java
sun/security/pkcs11/MessageDigest/ByteBuffers.java
sun/security/pkcs11/ec/ReadCertificates.java

Errors such as following are seen:

----------System.err:(611/41794)----------
java.security.InvalidKeyException: Could not initialize cipher
at jdk.crypto.cryptoki/sun.security.pkcs11.P11AEADCipher.implInit(P11AEADCipher.java:327)
at jdk.crypto.cryptoki/sun.security.pkcs11.P11AEADCipher.engineInit(P11AEADCipher.java:247)
at java.base/javax.crypto.Cipher.init(Cipher.java:1445)
at java.base/javax.crypto.Cipher.init(Cipher.java:1378)
at TestKATForGCM.execute(TestKATForGCM.java:261)
at TestKATForGCM.main(TestKATForGCM.java:318)
at PKCS11Test.premain(PKCS11Test.java:183)
at PKCS11Test.testDefault(PKCS11Test.java:270)
at PKCS11Test.main(PKCS11Test.java:218)
at TestKATForGCM.main(TestKATForGCM.java:303)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:830)
Caused by: sun.security.pkcs11.wrapper.PKCS11Exception: CKR_MECHANISM_PARAM_INVALID
at jdk.crypto.cryptoki/sun.security.pkcs11.wrapper.PKCS11.C_EncryptInit(Native Method)
at jdk.crypto.cryptoki/sun.security.pkcs11.P11AEADCipher.initialize(P11AEADCipher.java:394)
at jdk.crypto.cryptoki/sun.security.pkcs11.P11AEADCipher.implInit(P11AEADCipher.java:325)
... 15 more

Backports of PKCS11 v2.40 would also be impacted.