Reviewed-by: roland, iignatyev
Contributed-by: NPavel Punegov <pavel.punegov@oracle.com>

8034781: [TESTBUG] runtime/ClassFileUnsupportedClassFileVersion.java unable to find or load main class
Summary: Passed empty string to ProcessBuilder which caused problems on Linux, fixed by checking string length
Reviewed-by: lfoltan, sla, mseledtsov

Summary: Improved the UnsupportedClassVersionError message to hopefully be more user friendly
Reviewed-by: coleenp, dholmes, twisti

Summary: Insert a nop between cbcond and CTI
Reviewed-by: kvn, twisti

Reviewed-by: mikael, tbell

Reviewed-by: kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com

Reviewed-by: kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com

Reviewed-by: kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com

8039497: Testlibrary should be updated to provide information about all VM types as well as access to Unsafe
Reviewed-by: kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com

Reviewed-by: jmasa, coleenp

Reviewed-by: jmasa, stefank

Reviewed-by: jcoomes

Reviewed-by: coleenp, kvn

Summary: Switch UseRTMXendForLockBusy flag ON by default and change code to retry RTM locking on lock busy condition by default.
Reviewed-by: roland

Summary: Remove the misleading malloc macro and cleanup the code
Reviewed-by: dsamersoff, kvn
Contributed-by: goetz.lindenmaier@sap.com

Reviewed-by: jrose, twisti

Reviewed-by: kvn, twisti

8036667: "assert(adr->is_AddP() && adr->in(AddPNode::Offset)->is_Con()) failed: offset is a constant" with FoldStableValues on
Reviewed-by: kvn

Reviewed-by: morris, kvn

Reviewed-by: iveresov, kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com

Reviewed-by: dholmes, sla