JNI: wrap wolfSSL_SessionIsSetup() in WolfSSLSession

[cconlon]

This PR wraps the native wolfSSL API: wolfSSL_SessionIsSetup(WOLFSSL_SESSION* session); in the static Java method WolfSSLSession.sessionIsSetup(long session).

The native session pointer can be obtained from a calling Java application by calling WolfSSLSession.getSession(). WolfSSLSession.getSession() behaves like wolfSSL_get1_session() and returns a duplicate/copy of the WOLFSSL_SESSION. Calling applications must take care to free the session pointer when done by calling WolfSSLSession.freeSession(long session).

Native wolfSSL_SessionIsSetup() was added after wolfSSL 5.7.0 with wolfSSL/wolfssl#7430. If using native wolfSSL LIBWOLFSSL_VERSION_HEX in wolfssl/version.h is not greater than 0x05007000, then WOLFSSL_PR7430_PATCH_APPLIED must be defined when compiling wolfssljni native JNI sources. java.sh can be edited to define WOLFSSL_PR7430_PATCH_APPLIED in cflags if needed.

Other changes in this PR:

• Refactor WolfSSLSessionTest to use Junit test method annotations
• Add test method for WolfSSLSession.get/set/freeSession()
• In WolfSSLSession.getSession() JNI wrapper, check if session has ticket for TLS 1.3 before calling wolfSSL_peek()
• Correctly close client/server SSLSocket in WolfSSLSocketTest.protocolConnectionTestExtendedSocket(), prevents test hang with --enable-jni --enable-all on some JDK versions
• Fix Infer thread safety violation warnings in WolfSSLSession and WolfSSLSocket
• Remove Java 8 testing from Temurin JDK in GitHub Actions. It looks like Java 8 was removed for Mac OSX runners, error Error: Could not find satisfied version for SemVer '8'..

ZD 17557

[NitzDKoder]

@cconlon can we please have java test code for this api usage, wolfSSL_SessionIsSetup, getSession and freeSession?

[cconlon]

Hi @NitzDKoder, initial Java test code for the mentioned APIs has been added. Please see wolfssljni/src/test/com/wolfssl/test/WolfSSLSessionTest.java, specifically the method test_WolfSSLSession_getSetSession().

For general usage, after a WolfSSLSession.connect() call succeeds, you can call WolfSSLSession.getSession() to retrieve a long representing a native WOLFSSL_SESSION pointer. You can pass that long to WolfSSLSession.sessionIsSetup(long) which wraps the native wolfSSL_SessionIsSetup() API.