8136930: Simplify use of module-system options by custom launchers
8160489: Multiple -Xpatch lines ignored by javac
8156998: javac should support new option -XinheritRuntimeEnvironment
Reviewed-by: jlahoda, ksrini

8152897: refactor ToolBox to allow reduced documented dependencies
Reviewed-by: vromero

8142968: Module System implementation
Summary: Initial integration of JEP 200, JEP 260, JEP 261, and JEP 282
Reviewed-by: jjg, jlahoda, vromero, mcimadamore, bpatel, ksrini, darcy, anazarov, dfuchs
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, jan.lahoda@oracle.com, vicente.romero@oracle.com, andreas.lundblad@oracle.com, andrey.x.nazarov@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, kumar.x.srinivasan@oracle.com, sundararajan.athijegannathan@oracle.com

8056989: Sjavac --server option should be optional
8147568: NullPointerException in option parsing
Summary: Made --server option optional (and background=true implied)
Reviewed-by: jlahoda, erikj

8141355: PackagePathMismatch.java does not use --state-dir option
Summary: Added --state-dir to the PackagePathMismatch.java test.
Reviewed-by: jlahoda

8133671: langtools tests have bad license
Summary: Dropped classpath exception from copyright notice in tests.
Reviewed-by: jjg

8076543: Add @modules as needed to the langtools tests
Reviewed-by: jjg, shurailine

8059349: Public API scanning should be implemented in the form of a TaskListener
Summary: Replaces JavaCompilerWithDeps with a TaskListener.
Reviewed-by: jfranck