8163989: Clarify ModuleElement spec
Reviewed-by: abuckley, jjg

8178011: Automatic module warnings
Summary: Adding lints for automatic modules in requires and requires transitive directives.
Reviewed-by: jjg

8176743: tools/javac/modules/MOptionTest.java test fails on Mac
Summary: Correctly preferring classfiles over source files when timestamps match.
Reviewed-by: jjg

8175057: module-info on patch path should not produce an error
Summary: Allowing module-infos on patch paths during compilation.
Reviewed-by: jjg, ksrini

8176265: Method overload resolution on a covariant base type doesn't work in 9
Summary: Some type mappings should not be recursive
Reviewed-by: vromero, jlahoda

8072114: javac performance should be improved
Summary: Avoiding unnecessary use of Stream.empty().
Reviewed-by: mcimadamore

8175118: Revisit modeling of module directives
Reviewed-by: darcy, jlahoda

8173777: Merge javac -Xmodule into javac--patch-module
Summary: Merging -Xmodule: functionality into --patch-module.
Reviewed-by: jjg, mchung, rfield

8173393: Module system implementation refresh (2/2017)
Reviewed-by: mcimadamore, mchung, alanb
Contributed-by: alan.bateman@oracle.com, mandy.chung@oracle.com

8172901: javac: 'opens' statement cannot specify non observable package
Reviewed-by: jlahoda

8172810: ModuleElement should declare and provide appropriate modifiers
Reviewed-by: darcy

8173117: Compilation significantly slower after JDK-8169197
Summary: Only using recovery search when an error is inevitable.
Reviewed-by: jjg, mcimadamore

8171177: Compiler should issue a warning for incubating modules that are resolved
Summary: javac needs to follow ModuleResolution.DO_NOT_RESOLVE_BY_DEFAULT and ModuleResolution.WARN_INCUBATING
Reviewed-by: jjg

8169608: Compiler Tree API's Doctrees.getDocTreePath needs to accept a PackageElement
8157611: field visiblePackages is null for the unnamed module producing NPE when accessed
Reviewed-by: jjg, jlahoda

8169197: Improve error reporting for compiling against unexported package
Summary: When a type cannot be found, look into other modules, search for possible viable types, and report them conveniently to the user.
Reviewed-by: mcimadamore, jjg

8172411: -XDnoModules must be removed
Reviewed-by: jjg

8144066: StackOverflowException when computing glb
Reviewed-by: mcimadamore

8171132: Improve class reading of invalid or out-of-range ConstantValue attributes
Reviewed-by: mcimadamore

8171371: Remove redundant type-arguments from generic method calls
Reviewed-by: jjg, rfield, mchung

8181370: Convert anonymous inner classes into lambdas/method references
Reviewed-by: jjg, rfield, mchung

8170987: Module system implementation refresh (12/2016)
Reviewed-by: mcimadamore
Contributed-by: jonathan.gibbons@oracle.com, jan.lahoda@oracle.com, srikanth.adayapalam@oracle.com, alan.bateman@oracle.com, mandy.chung@oracle.com

8075793: Source incompatibility for inference using -source 7
Summary: In pre-8 sources, avoid capture variables as inference bounds, consistent with old javac behavior
Reviewed-by: vromero, mcimadamore

8170410: inference: javac doesn't implement 18.2.5 correctly
Summary: javac does not generate constraints of the kind 'throws alpha' as described in the spec
Reviewed-by: vromero, dlsmith

8169069: Module system implementation refresh (11/2016)
Reviewed-by: mcimadamore, jjg, mchung, anazarov
Contributed-by: jonathan.gibbons@oracle.com, jan.lahoda@oracle.com, alan.bateman@oracle.com, mandy.chung@oracle.com, bhavesh.x.patel@oracle.com, andrey.x.nazarov@oracle.com

8163190: Clarify JavaFileManager use of \"module location\"
Reviewed-by: jlahoda

8168312: javac throws NPE if annotation processor is specified and module is declared in a file named arbitrarily
Reviewed-by: jlahoda

8166700: NPE during invoking getEnclosedElements() on javax.lang.model.element.Element instance representing a package
Summary: Should not strip first parameter of a local class constructor for local classes in initializers.
Reviewed-by: jjg

8169074: Build is failing after JDK-8166538
Summary: Reverting d3dde3f775b8
Reviewed-by: darcy

8166538: Improve error reporting for compiling against unexported package
Summary: When a type cannot be found, look into other modules, search for possible viable types, and report them conveniently to the user.
Reviewed-by: mcimadamore, jjg

8167431: javac takes too long time to resolve interface dependency
Reviewed-by: mcimadamore

8168774: Polymorhic signature method check crashes javac
Summary: Check for polysig method assumes arity is greater than zero
Reviewed-by: vromero

8145471: javac changes for enhanced deprecation
Reviewed-by: smarks, tbell, mcimadamore, jlahoda

8167000: Refine handling of multiple maximally specific abstract methods
Summary: Bring the compiler in sync with spec changes in JDK-7034913
Reviewed-by: vromero, dlsmith

8167320: Trying to document only java.base causes a NPE in javac
Summary: Ensure ModuleSymbol.getDirectives completes the Symbol
Reviewed-by: ksrini, jjg

8152911: javac assertion error when compiling overlay sources
Summary: Avoid creating ModuleSymbols with unspecified name, to avoid conflicts with predefined ModuleSymbol for the java.base module.
Reviewed-by: jjg

8164519: Rendering of supertype_target for annotated extends clause
Summary: Eliminate inconsistencies in handling annotated super class.
Reviewed-by: jlahoda

8166108: VerifyError passing anonymous inner class to supertype constructor
Summary: Anonymous classes instantitated in explicit constructor calls cannot have enclosing instance
Reviewed-by: vromero

8161376: Introduce -Xlint:exports
Summary: Adding -Xlint:exports, currently not doing anything. Functionality will be added separatelly under JDK-8153362.
Reviewed-by: jjg

8160454: JSR269 jigsaw update: javax.lang.model.element.ModuleElement.getDirectives() causes NPE on unnamed modules
Reviewed-by: jjg

8164073: Javac should unconditionally warn if deprecated javadoc tag is used without @Deprecated annotation
Reviewed-by: mcimadamore

8165008: javac -Xmodule compiles the module in a way that reads the unnamed module
Summary: Ensuring proper separation between named modules and the unnamed module when using -Xmodule
Reviewed-by: jjg

8164951: Build broken after JDK-8164745
Summary: Reverting the fix for JDK-8164745 to investigate a build failure.
Reviewed-by: jjg

8164745: javac -Xmodule compiles the module in a way that reads the unnamed module
Summary: Ensuring proper separation between named modules the unnamed module when using -Xmodule
Reviewed-by: jjg

8161501: JSR269 jigsaw update: javax.lang.model.element.ModuleElement.getEnclosedElements() on unnamed module with unnamed package
Reviewed-by: jjg

8047338: javac is not correctly filtering non-members methods to obtain the function descriptor
Reviewed-by: mcimadamore

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

8144733: Iterating over elements of a Scope can return spurious inner class elements
Summary: When a Symbol is removed from a Scope while iterating over it, update the iterator as well to reflect the change.
Reviewed-by: mcimadamore

8161708: javac, consider a different way to handle access code for operators
Reviewed-by: mcimadamore

8160928: javac incorrectly copies over interior type annotations to bridge method
Reviewed-by: mcimadamore

8132446: AsssertionError in ClassSymbol.setAnnotationType
Reviewed-by: jlahoda, darcy

8159970: javac, JLS8 18.2.4 is not completely implemented by the compiler
Reviewed-by: mcimadamore

8159680: Inference failure with unchecked subtyping and arrays
Summary: Discrepancy in handling of capture conversion between Types.isSubtype and Types.isSubtypeUnchecked
Reviewed-by: vromero

8037947: functional interface causes ClassCastException when extending raw superinterface
Reviewed-by: mcimadamore

8146167: Anonymous type declarations drop supertype type parameter annotations
Reviewed-by: mcimadamore

8047024: 7 ANNOT tests in JCK9 test suite fail with an AssertionError for exception_index
Summary: Fix incorrect assertion about exception index already being set.
Reviewed-by: mcimadamore

8156950: NPE while accessing ExportsDirectives.getTargetModules
Reviewed-by: jjg

8154956: Module system implementation refresh (4/2016)
Reviewed-by: jjg, mchung, alanb
Contributed-by: jonathan.gibbons@oracle.com, jan.lahoda@oracle.com

8154283: Check for clash between package and class not working when package in a different module
Summary: Looking for any visible package when checking for package-class clash
Reviewed-by: jjg

8152832: Type inference regression in javac
Summary: Stale incoropration actions caused missing inference bounds
Reviewed-by: vromero

8151191: javac error when running javadoc on some inner classes
Reviewed-by: jjg

Merge

8149644: Integrate VarHandles
Reviewed-by: mcimadamore, forax

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

8139474: -release 7 -verbose causes Javac exception
Reviewed-by: jjg

8148808: javac, remove unused options, step 1
Reviewed-by: mcimadamore, jjg

8148483: JEP 280: Indify String Concatenation
Reviewed-by: psandoz, mcimadamore, igerasim, forax, plevart, vlivanov, ihse
Contributed-by: Aleksey Shipilev <aleksey.shipilev@oracle.com>, Remi Forax <forax@univ-mlv.fr>, Peter Levart <peter.levart@gmail.com>

8145987: Assertion failure when compiling stream with type annotation
Reviewed-by: jlahoda

8144580: java.lang.AssertionError: Missing type variable in where clause: T
Summary: Type variable comparisons should ignore type annotations.
Reviewed-by: mcimadamore

8143852: Implement type variable renaming for functional interface most specific test
Reviewed-by: mcimadamore, vromero

8057548: Annotate.Worker should be replaced with lambdas
Summary: Anonymous Runnables (which used to be Annotate.Worker) replaced by lambdas.
Reviewed-by: mcimadamore

8142876: Javac does not correctly implement wildcards removal from functional interfaces
Summary: Rewrite code for removing wildcard from target functional interface to be in sync with JLS 9.9
Reviewed-by: vromero, dlsmith

8144832: cast conversion fails when converting a type-variable to primitive type
Reviewed-by: mcimadamore

8145342: Some copyright notices are inconsistently and ill formatted
Summary: Adjusted formatting of copyright notices.
Reviewed-by: darcy, alundblad

8138598: Incorrect reference to JLS in javadoc for Types.isSignaturePolymorphic()
Reviewed-by: mcimadamore

8144673: Suspect message regarding suitable enclosing instance not being in scope
Summary: javac incorrectly complains about missing enclosing instance while handling method references.
Reviewed-by: vromero

8059976: Convert JavacFileManager to use java.nio.file internally
Reviewed-by: jlahoda

8067767: type inference performance regression
Summary: Overhaul implememntation of inference incorporation
Reviewed-by: vromero

8142931: java compiler: type erasure doesn't work since 9-b28
Summary: Reinstate pre JDK-8055054 behavior with respect to erasing wildcard types.
Reviewed-by: mcimadamore

8136419: Type annotations in initializers and lambda bodies not written to class file
Reviewed-by: jlahoda

8142467: Remove all references Flags.IPROXY
Summary: Remove all references to flag bit IPROXY that has fallen into disuse.
Reviewed-by: mcimadamore

8141343: Subtle semantics changes for union types in cast conversion
Summary: cast applied to union types do not behave correctly and sometimes pass erroneously
Reviewed-by: jlahoda

8057685: javac should not crash compiling type annotations
Reviewed-by: jlahoda

8074803: Name clash
Summary: Javac incorrectly reports a name clash.
Reviewed-by: mcimadamore

8138729: javac -parameters should not emit parameter names for lambda expressions
Reviewed-by: mcimadamore

8138840: NPE when compiling bitwise operations with illegal operand types
8139243: compiler crashes with exception on sum operation of String var and void method call result
8139249: Compiler crashes on unary bitwise complement with non-integral operand
Summary: Certain binary operator checks are accepting more operands than required.
Reviewed-by: jlahoda

8138914: javac, method visitTypeVar() at visitor Types.hashCode generates the same hash code for different type variables
Reviewed-by: mcimadamore

8078093: Severe compiler performance regression Java 7 to 8 for nested method invocations
Summary: Add infrastructure to avoid combinatorial explosion of method argument attributions
Reviewed-by: jlahoda, vromero, dlsmith

8129962: Investigate performance improvements in langtools combo tests
Summary: New combo API that runs all combo instances in a shared javac context (whenever possible).
Reviewed-by: jjg, jlahoda, vromero

8131915: CompletionFailure during import listing crashes javac
Summary: Handling CompletionFailures during import listing properly.
Reviewed-by: mcimadamore

8080880: some docs cleanup for langtools
Summary: minor cleanup for docs
Reviewed-by: jjg

8072480: javac should support compilation for a specific platform version
Summary: Adding a new javac option for compiling for JDK N: -release N; including history data for previous version of JDK.
Reviewed-by: erikj, ihse, jjg, mcimadamore, mr
Contributed-by: jan.lahoda@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com

8039262: Java compiler performance degradation jdk1.7 vs. jdk1.6 should be amended
Summary: Avoiding Scope listener leak by avoiding cache misses in Types.MembersClosureCache
Reviewed-by: mcimadamore, vromero
Contributed-by: maurizio.cimadamore@oracle.com

8080842: Using Lambda Expression with name clash results in ClassFormatError
Summary: Ensure ScopeImpl can cope properly with remove when a field and method share the name
Reviewed-by: mcimadamore, jlahoda

8080726: Redundant error message on private abstract interface method with body.
Reviewed-by: mcimadamore

8044196: Incorrect applying of repeatable annotations with incompatible target to type parameter
Summary: Additional applicability checks added.
Reviewed-by: jlahoda

8078600: Infinite loop when compiling annotations with -XDcompletionDeps
Summary: Added Completer::isTerminal and added NULL_COMPLETER.
Reviewed-by: jlahoda, mcimadamore

8068737: ArrayType prints element type post order
Summary: Rewrote ArrayType.toString
Reviewed-by: jlahoda, ksrini

8031744: Annotations on many Language Model elements are not returned
Reviewed-by: jfranck, mcimadamore, emc, jlahoda, jjg
Contributed-by: joel.franck@oracle.com, maurizio.cimadamore@oracle.com

8062373: Project Coin: diamond and anonymous classes
Summary: Allow diamond inference in combination with anonymous class instance creation
Reviewed-by: mcimadamore, vromero
Contributed-by: srikanth.adayapalam@oracle.com, maurizio.cimadamore@oracle.com

8075184: javac is mistakenly considering an missing enclosing instance error as an overload error
Reviewed-by: mcimadamore

8048838: type inference performance regression
Summary: Reduce redundant bounds before attempting to do pairwise lub computation during bound incorporation.
Reviewed-by: vromero

8074100: Turn Type.Mapping into a true visitor
Summary: replace Type.Mapping with a true visitor in Types
Reviewed-by: jlahoda, vromero

8073432: Object.getClass() throws stackless NPE, due to C2 intrinsic
Summary: Javac should generate NPE checks using Objects.requireNonNull if -target >= 7
Reviewed-by: jlahoda
Contributed-by: aleksey.shipilev@oracle.com

8073645: Add lambda-based lazy eval versions of Assert.check methods
Summary: Enhance Assert so that lazy string computation can occurr where needed; enhance static roding rule checkers to make sure the right version of the method is called.
Reviewed-by: jlahoda

8071453: Allow interface methods to be private
Reviewed-by: mcimadamore
Contributed-by: maurizio.cimadamore@oracle.com, srikanth.adayapalam@oracle.com

8073842: Invalid method reference when referencing a method on a wildcard type
Summary: Method rteference lookup logic doesn't skip type-variables as required by javac.
Reviewed-by: jlahoda

8067886: Inaccessible nested classes can be incorrectly imported
Summary: Check type accessibility at the point of import when importing the type using type-import-on-demand.
Reviewed-by: mcimadamore, jfranck

8071291: Compiler crashes trying to cast UnionType to IntersectionClassType
Summary: Compiler tests for .isCompound but then cast to a more specific Type subclass, resulting in CCE
Reviewed-by: vromero, jlahoda

8039214: Inference should not map capture variables to their upper bounds
Summary: Update to Types.containsType; related adjustment to most-specific test
Reviewed-by: mcimadamore, vromero

8071241: Investigate alternate strategy for type-checking operators
Summary: Separat operator lookup logic from overload resolution.
Reviewed-by: jjg, jlahoda, sadayapalam

8069265: ClassCastException when compiled with JDK 9b08+, JDK8 compiles OK.
Summary: Alternate fix for 8015499 to eliminate extra checkcast (by working around a limitation in Types#asSuper) without the side effect that results in 8069265
Reviewed-by: mcimadamore, jjg
Contributed-by: srikanth.adayapalam@oracle.com

8068517: Compiler may generate wrong InnerClasses attribute for static enum reference
Summary: Making sure enum's abstractness is resolved before writing InnerClasses entry about it.
Reviewed-by: mcimadamore

8068995: Cleanup method reference lookup code
Summary: Simplify method reference code lookup and generate better/more uniform diagnostics
Reviewed-by: vromero

8062358: ClassCastException in TransTypes.visitApply
Summary: Incorrect handling of subtype relations involving lower bounded wildcard causes ClassCastException
Reviewed-by: vromero, dlsmith
Contributed-by: srikanth.adayapalam@oracle.com