8230626: Make UnknownFooException strings more informative Reviewed-by: jjg, mr

8230624: [TESTBUG] Problemlist JFR compiler/TestCodeSweeper.java Summary: Added the test to the problem list Reviewed-by: egahlin

8230435: Replace wildcard address with loopback or local host in tests - part 22 Summary: fixes tests to use the loopback address whenever possible. It also fixes some safe publishing issues, or add diagnostics in some of the tests. Reviewed-by: michaelm

8171405: java/net/URLConnection/ResendPostBody.java failed with "Error while cleaning up threads after test" Summary: test cleaned up to improve safe termination Reviewed-by: michaelm, vtewari, dfuchs Contributed-by: Julia Boes <julia.boes@oracle.com>

8230159: Add test to verify that com.sun.net.httpserver.BasicAuthenticator constructors throw expected exceptions Summary: new BasicAuthenticatorExceptionCheck.java test added Reviewed-by: chegar, dfuchs, vtewari Contributed-by: Patrick Concannon <patrick.concannon@oracle.com>

8229450: C2 compilation fails with assert(found_sfpt) failed Reviewed-by: roland, thartmann

8230401: ClassLoaderData::_keep_alive is read with wrong type in c2i entry barrier Reviewed-by: zgu, tschatzl, iklam

8230434: [C1, C2] Release barrier for volatile field stores in constructors implemented inconsistently Reviewed-by: shade, lucy

8209802: Garbage collectors should register JFR types themselves to avoid build errors. Reviewed-by: kbarrett, tschatzl

8230431: Move G1 trace code from gcTrace* to G1 directory Reviewed-by: kbarrett, lkorinth