summaryrefslogtreecommitdiff
path: root/test/files/jvm
Commit message (Collapse)AuthorAgeFilesLines
* Simplify and correctify calculation of the InnerClass attributeLukas Rytz2015-10-202-4/+4
| | | | | | | | | | | | | The InnerClass attribute needs to contain an entry for every nested class that is defined or referenced in a class. Details are in a doc comment in BTypes.scala. Instead of collecting ClassBTypes of nested classes into a hash map during code generation, traverse the class before writing it out to disk. The previous approach was incorrect as soon as the generated bytecode was modified by the optimzier (DCE, inlining). Fixes https://github.com/scala/scala-dev/issues/21.
* Merge commit '03aaf05' into merge-2.11-to-2.12-sep-22Lukas Rytz2015-09-221-5/+3
|\
| * Update power mode bannerSom Snytt2015-09-021-5/+3
| | | | | | | | | | | | | | | | | | | | | | The classic banner is available under -Dscala.repl.power.banner=classic. ``` scala> :power Power mode enabled. :phase is at typer. import scala.tools.nsc._, intp.global._, definitions._ Try :help or completions for vals._ and power._ ```
* | Merge remote-tracking branch 'origin/2.11.x' into 2.12.xSeth Tisue2015-08-201-3/+3
|\| | | | | | | | | | | | | | | | | | | all conflicts were because the changes changed code that doesn't exist anymore in 2.12; they were resolved with `git checkout --ours` c201eac changed bincompat-forward.whitelist.conf but I dropped the change in this merge because it refers to AbstractPromise which no longer exists in 2.12
| * Merge pull request #4554 from som-snytt/issue/1931Seth Tisue2015-08-061-3/+3
| |\ | | | | | | SI-1931 Hide Predef.any2stringadd in REPL
| | * SI-1931 Hide Predef.any2stringadd in REPLSom Snytt2015-07-061-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | User imports that reference Predef are relocated to the top of the wrapping template so that they can hide implicits defined in Predef. Only one import from Predef is retained for special treatment. This is simple and sane. The test shows that `import Predef._` restores Predef implicits even if a user-defined term would normally be in scope. A smart `:import` command to turn off or quarantine imports explicitly would allow fine-grained control.
| * | SI-9393 fix modifiers of ClassBTypes for Java annotationsLukas Rytz2015-07-241-3/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Scala classfile and java source parsers make Java annotation classes (which are actually interfaces at the classfile level) look like Scala annotation classes: - the INTERFACE / ABSTRACT flags are not added - scala.annotation.Annotation is added as superclass - scala.annotation.ClassfileAnnotation is added as interface This makes type-checking @Annot uniform, whether it is defined in Java or Scala. This is a hack that leads to various bugs (SI-9393, SI-9400). Instead the type-checking should be special-cased for Java annotations. This commit fixes SI-9393 and a part of SI-9400, but it's still easy to generate invalid classfiles. Restores the assertions that were disabled in #4621. I'd like to leave these assertions in: they are valuable and helped uncovering the issue being fixed here. A new flag JAVA_ANNOTATION is introduced for Java annotation ClassSymbols, similar to the existing ENUM flag. When building ClassBTypes for Java annotations, the flags, superclass and interfaces are recovered to represent the situation in the classfile. Cleans up and documents the flags space in the area of "late" and "anti" flags. The test for SI-9393 is extended to test both the classfile and the java source parser.
* | SI-9393 fix modifiers of ClassBTypes for Java annotationsLukas Rytz2015-07-221-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Scala classfile and java source parsers make Java annotation classes (which are actually interfaces at the classfile level) look like Scala annotation classes: - the INTERFACE / ABSTRACT flags are not added - scala.annotation.Annotation is added as superclass - scala.annotation.ClassfileAnnotation is added as interface This makes type-checking @Annot uniform, whether it is defined in Java or Scala. This is a hack that leads to various bugs (SI-9393, SI-9400). Instead the type-checking should be special-cased for Java annotations. This commit fixes SI-9393 and a part of SI-9400, but it's still easy to generate invalid classfiles. Restores the assertions that were disabled in #4621. I'd like to leave these assertions in: they are valuable and helped uncovering the issue being fixed here. A new flag JAVA_ANNOTATION is introduced for Java annotation ClassSymbols, similar to the existing ENUM flag. When building ClassBTypes for Java annotations, the flags, superclass and interfaces are recovered to represent the situation in the classfile. Cleans up and documents the flags space in the area of "late" and "anti" flags. The test for SI-9393 is extended to test both the classfile and the java source parser.
* | Remove further references to forkjoinJason Zaugg2015-07-154-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use j.u.c.Forkjoin directly in active and disabled tests Remove bitrotted benchmarks code I was going to update these to use `java.util.concurrent.ForkJoin` directly, instead of our deprecated stubs. But most of them don't compile anymore (e.g. scala.testing.Benchmark has been removed, ClassTag imports missing). While I'm all for benchmarks, we should have large swathes of code checked in that isn't at compiled and run automatically. I'm happy to help someone resurrect these in a suitable form.
* | Remove our fork of forkjoin. Java 8 bundles it.Adriaan Moors2015-07-152-18/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide deprecated compatibility stubs for the types and static members, which forward as follows: ``` scala.concurrent.forkjoin.ForkJoinPool => java.util.concurrent.ForkJoinPool scala.concurrent.forkjoin.ForkJoinTask => java.util.concurrent.ForkJoinTask scala.concurrent.forkjoin.ForkJoinWorkerThread => java.util.concurrent.ForkJoinWorkerThread scala.concurrent.forkjoin.LinkedTransferQueue => java.util.concurrent.LinkedTransferQueue scala.concurrent.forkjoin.RecursiveAction => java.util.concurrent.RecursiveAction scala.concurrent.forkjoin.RecursiveTask => java.util.concurrent.RecursiveTask scala.concurrent.forkjoin.ThreadLocalRandom => java.util.concurrent.ThreadLocalRandom ``` To prepare for Java 9, the Scala library does not itself use `sun.misc.Unsafe`. However, for now, it provide a convenience accessor for it via `scala.concurrent.util.Unsafe`. This (deprecated) class will be removed as soon as the eco-system drops its use (akka-actor, I'm looking at you).
* | Merge remote-tracking branch 'origin/2.11.x' into ↵Jason Zaugg2015-07-134-7/+1
|\| | | | | | | | | | | | | | | | | | | | | | | | | merge/2.11.x-to-2.12.x-20150713 Conflicts: src/eclipse/partest/.classpath src/eclipse/repl/.classpath test/files/run/nothingTypeNoFramesNoDce.scala test/files/run/repl-javap-app.check Also fixup two .classpath files with updated partest, xml and parser combinators JARs.
| * Merge pull request #4596 from janekdb/2.11.x-typos-p-rSeth Tisue2015-07-011-1/+1
| |\ | | | | | | Fix 27 typos (p-r)
| | * Fix 27 typos (p-r)Janek Bogucki2015-06-301-1/+1
| | |
| * | Merge pull request #4576 from som-snytt/issue/9206-moreSeth Tisue2015-07-013-6/+0
| |\ \ | | |/ | |/| SI-9206 REPL custom bits
| | * SI-9206 Update REPL welcome messageSom Snytt2015-06-243-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Everyone knows that a `help` command will result in `more information`. This commit moves the version string to the second line and adds some verve to the welcome. If anyone can't live without the old banner, they are now able to configure it explicitly, so there is still no blood on our hands. ``` $ scala Welcome to Scala version 2.11.6 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_40). Type in expressions to have them evaluated. Type :help for more information. scala> :quit $ skala Welcome to Scala! version 2.11.7-20150623-155244-eab44dd092 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_40). Type in expressions for evaluation. Or try :help. scala> :quit ``` REPL tests now lop off the actual length of the welcome header; or, if necessary, remove the version number from a header embedded in output.
* | | Fix some tests, move others to pending/Lukas Rytz2015-07-016-302/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move run/t8960 to pending It tests the serialVersionUID field on closure classes. The field doesn't exist for indyLambda closures. See https://issues.scala-lang.org/browse/SI-9373 Move some reify tests to pending They fail at runtime in GenBCode since scala is built with indyLambda enabled: java.lang.AssertionError: assertion failed: Bad superClass for trait JFunction1: class Any at scala.tools.nsc.Global.assert(Global.scala:261) at scala.tools.nsc.backend.jvm.BTypesFromSymbols.setClassInfo(BTypesFromSymbols.scala:228) Noted in https://issues.scala-lang.org/browse/SI-9374 force t6546 to GenASM - no closure elimination in GenBCode yet Noted in https://issues.scala-lang.org/browse/SI-9364. Fix or disable some tests that fail because of the old optimizer The old inliner fails more often when the library is built with indylambda. Noted in https://issues.scala-lang.org/browse/SI-9374. Example: List.foreach ➜ sandbox git:(jfun) ✗ qs -Ybackend:GenASM -optimize -Yinline-warnings Welcome to Scala version 2.12.0-20150630-220939-1cb032d806 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_45). Type in expressions to have them evaluated. Type :help for more information. scala> List(1,2,3).foreach(x => x + 1) <console>:11: warning: Could not inline required method foreach because bytecode unavailable. List(1,2,3).foreach(x => x + 1) ^ <console>:11: warning: At the end of the day, could not inline @inline-marked method foreach List(1,2,3).foreach(x => x + 1) ^ Upate a number of tests for having indyLambda enabled The delambdafyLambdaClassNames tests was removed, there's nothing to tests with indyLambda.
* | | Default to delambdafy:method and backend:GenBCodeLukas Rytz2015-06-263-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch the defaults of `-Ydelambdafy` and `-Ybackend`. Rewrite t6288b-jump-position test - no more icode Don't crash GenBCode beyond JVM code size limits A similar patch is in GenASM, see 3fa2c97 Fix check files for GenBCode / delambdafy:method defaults Force copy propagation test to ASM, see SI-9364 Force inline-ex-handlers test to GenASM, see SI-9364 Move t6613 test to pending - still broken in GenBCode Adding a `flags` file with `-Ybackend:GenASM` doesn't seem to have the desired effect. SI-6613 is re-opened. Force a few tests to GenASM, see SI-9364
* | | Merge branch '2.11.x' into merge/2.11.x-to-2.12.x-20150624Jason Zaugg2015-06-2415-80/+85
|\| |
| * | Merge pull request #4574 from janekdb/2.11.x-typos-g-iJason Zaugg2015-06-232-2/+2
| |\ \ | | |/ | |/| Fix 25 typos (g-i)
| | * Fix 25 typos (g-i)Janek Bogucki2015-06-222-2/+2
| | |
| * | Merge pull request #4564 from som-snytt/issue/promptv2.11.7Adriaan Moors2015-06-221-9/+9
| |\ \ | | |/ | |/| SI-9206 Fix REPL code indentation
| | * SI-9206 Fix REPL code indentationSom Snytt2015-06-191-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To make code in error messages line up with the original line of code, templated code is indented by the width of the prompt. Use the raw prompt (without ANSI escapes or newlines) to determine the indentation. Also, indent only once per line.
| * | Fix 36 typos (d-f)Janek Bogucki2015-06-211-1/+1
| |/
| * Fix some typos (a-c)Janek Bogucki2015-06-182-2/+2
| |
| * Make two tests work under -Ydelambdafy:methodJason Zaugg2015-05-264-61/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recently, in 029cce7, I changed uncurry to selectively fallback to the old method of emitting lambdas when we detect that `-Ydelambdafy:method`. The change in classfile names breaks the expectations of the test `innerClassAttribute`. This commit changes that test to avoid using specialized functions, so that under -Ydelambdafy:method all functions are uniform. This changes a few fresh suffixes for anonymous class names under both `-Ydelambdafy:{inline,method}`, so the expectations have been duly updated. Similarly, I have changed `javaReflection` in the same manner. Its checkfiles remained unchanged.
| * Fix several tests under GenBCodeLukas Rytz2015-05-265-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - private-inline, t8601-closure-elim, inline-in-constructors - test closure inlining / elimination, which is not yet implemented in GenBCode. noted in https://github.com/scala-opt/scala/issues/14. - constant-optimization, t7006 - no constant folding in GenBCode yet. noted in https://github.com/scala-opt/scala/issues/29. - patmat_opt_ignore_underscore, patmat_opt_no_nullcheck, patmat_opt_primitive_typetest - not all optimizations in GenBCode yet. noted in https://github.com/scala-opt/scala/issues/30. - t3234 - tests a warning of trait inlining - trait inlining works in GenBCode - synchronized - ignore inliner warnings (they changed a bit) - t6102 - account for the changed outputo of -Ydebug has under GenBCode
* | Merge remote-tracking branch 'origin/2.11.x' into ↵Jason Zaugg2015-05-012-3/+3
|\| | | | | | | merge/2.11.x-to-2.12.x-20150501
| * Fix many typosMichał Pociecha2015-04-212-3/+3
| | | | | | | | | | This commit corrects many typos found in scaladocs and comments. There's also fixed the name of a private method in ICodeCheckers.
* | Remove scala.actors and the actors migration module dependencyLukas Rytz2015-04-2376-2269/+0
| |
* | Merge pull request #4436 from adriaanm/rebase-4082Adriaan Moors2015-04-131-0/+43
|\ \ | | | | | | SI-8336: add `fold` & `toEither` to `util.Try`
| * | SI-8336: add `fold` & `toEither` to `util.Try`cchantep2015-04-071-0/+43
| | | | | | | | | | | | | | | | | | | | | `res.fold(fa, fb)` evaluates to `fa(e)` if `res` is a `Failure(e)`, or `fb(value)` if `res` is a `Success(value)`. (If `fb` throws an exception `e` when applied, `fa(e)`.)
* | | Merge commit '32f520f' into merge/2.11-to-2.12-apr-1Lukas Rytz2015-04-011-2/+7
|\ \ \ | | |/ | |/|
| * | SI-8689 Make a Future test case determisticJason Zaugg2015-03-311-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | As discussed: https://groups.google.com/forum/#!topic/scala-internals/m8I_3GQR4vQ We need to ensure a happens-before relationship between the callback that prints "success" and the end of the main method.
* | | Merge commit 'fcc20fe' into merge/2.11-to-2.12-apr-1Lukas Rytz2015-04-0112-37/+566
|\| | | |/ |/|
| * Merge commit 'ad845ff' into merge/2.10.x-to-2.11.x-20150224Jason Zaugg2015-02-243-8/+81
| |\ | | | | | | | | | | | | | | | Conflicts: src/library/scala/concurrent/Promise.scala test/files/jvm/future-spec/PromiseTests.scala
| | * SI-8689 Avoid internal error in Promise after sequence of completionsViktor Klang2015-02-043-9/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Calling `completeWith` when the `DefaultPromise` is already completed, leads to callbacks not being properly executed. This happened because `Future.InternalCallbackExecutor` extends `BatchingExecutor`[1] which assumes `unbatchedExecute` to be async, when in this case it is sync, and if there is an exception thrown by executing the batch, it creates a new batch with the remaining items from the current batch and submits that to `unbatchedExecute` and then rethrows, but if you have a sync `unbatchedExecute`, it will fail since it is not reentrant, as witnessed by the failed `require` as reported in this issue. This commit avoids problem by delegating `completeWith` to `tryComplete`, which has the effect of using `onComplete` + `tryComplete` i.s.o. `complete`, which means that when it fails (because of a benign race condition between completers) it won't throw an exception. It has been tested by the minimized reproducer. [1] Actually, in the 2.10.x branch where this patch is starting out, "The BatchingExecutor trait had to be inlined into InternalCallbackExecutor for binary compatibility.". This comment will be more literally correct in the context of 2.11.x and beyond
| * | Test java reflection on scala library / reflect / compiler jarsLukas Rytz2015-02-071-0/+65
| | | | | | | | | | | | | | | | | | | | | Run a number of Java reflection operations on all classes in scala library / reflect / compiler. The test is based on a draft by Jason.
| * | Fix InnerClass / EnclosingMethod for closures nested in value classesLukas Rytz2015-02-074-13/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Members of value classes are moved over to the companion object early. This change ensures that closure classes nested in value classes appear that way to Java reflection. This commit also changes the EnclosingMethod attribute for classes (and anonymous functions) nested in anonymous function bodies. Before, the enclosing method was in some cases the function's apply method. Not always though: () => { class C ... val a = { class D ...} } The class C used to be nested in the function's apply method, but not D, because the value definition for a was lifted out of the apply. After this commit, we uniformly set the enclosing method of classes nested in function bodies to `null`. This is consistent with the source-level view of the code. Note that under delambdafy:method, closures never appear as enclosing classes (this didn't change in this commit).
| * | Fix InnerClass/EnclosingMethod for trait impl and specialized classesLukas Rytz2015-02-072-2/+124
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trait implementation classes and specialized classes are always considered top-level in terms of the InnerClass / EnclosingMethod attributes. These attributes describe source-level properties, and such classes are a compilation artifact. Note that the same is true for delambdafy:method closure classes (they are always top-level).
| * | SI-9124 fix EnclosingMethod of classes nested in implOnly trait defsLukas Rytz2015-02-072-0/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Private trait methods are not added to the generated interface, they end up only in the implementation class. For classes nested in such methods, the EnclosingMethod attribute was incorrect. Since the EnclosingMethod attribute expresses a source-level property, but the actual enclosing method does not exist in the bytecode, we set the enclosing method to null.
| * | SI-9105 Fix EnclosingMethod for classes defined in lambdasLukas Rytz2015-02-075-19/+167
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change fixes both GenASM and GenBCode, except for the change to renaming in LamdaLift mentioned below. The reason for an inconsistent EnclosingMethod attribute was the symbol owner chain. Initially, closure class symbols don't exist, they are only created in UnCurry (delambdafy:inline). So walking the originalOwner of a definition does not yield closure classes. The commit also fixes uses of isAnonymousClass, isAnonymousFunction and isDelambdafyFunction in two ways: 1. by phase-travelling to an early phase. after flatten, the name includes the name of outer classes, so the properties may become accidentally true (they check for a substring in the name) 2. by ensuring that the (destructive) renames during LambdaLift don't make the above properties accidentally true. This was in fact the cause for SI-8900.
| * | Merge pull request #4233 from kanielc/SI-7770Lukas Rytz2015-02-032-2/+2
| |\ \ | | | | | | | | SI-7770 mutable.BitSet.toImmutable isn't immutable
| | * | SI-7770 mutable.BitSet.toImmutable isn't immutableDenton Cockburn2015-01-072-2/+2
| | | | | | | | | | | | | | | | | | | | Mark method as deprecated due to it not providing the expected result, while fixing it will break existing code.
* | | | Merge remote-tracking branch 'origin/2.11.x' into ↵Jason Zaugg2015-01-294-20/+25
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | merge/2.11.x-to-2.12.x-20150129 Conflicts: build.number src/library/scala/concurrent/Future.scala versions.properties
| * | | Construct ClassBTypes from parsed classfilesLukas Rytz2015-01-163-20/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This infrastructure is required for the inliner: when inlining code from a classfile, the corresponding ClassBType is needed for various things (eg access checks, InnerClass attribute). The test creates two ClassBTypes for the same class: once using the (unpickled) Symbol, once using the parsed ASM ClassNode, and verifies that the two are the same. There's a cleanup to the InnerClass attribute: object T { class Member; def foo = { class Local } } class T For Java compatibility the InnerClass entry for Member says the class is nested in T (not in the module class T$). We now make sure to add that entry only to T, not to T$ (unless Member is actually referenced in the classfile T$, in that case it will be added, as required).
| * | | SI-9044 Fix order of interfaces in classfilesLukas Rytz2014-12-181-0/+6
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | It was reversed since ced3ca8ae1. The reason is that the backend used `mixinClasses` to obtain the parents of a class, which returns them in linearization order. `mixinClasses` als returns all ancestors (not only direct parents), which means more work for `minimizeInterfaces`. This was introduced in cd62f52 for unclear reasons. So we switch back to using `parents`.
* | | Merge commit '7ba38a0' into merge/2.11.x-to-2.12.x-20150129Jason Zaugg2015-01-292-5/+5
|\| | | | | | | | | | | | | | | | | | | | | | | Conflicts: build.number src/compiler/scala/tools/nsc/transform/ExtensionMethods.scala src/library/scala/collection/Iterator.scala versions.properties
| * | Fix lambda names under delambdafy:method in innerClassAttribute testLukas Rytz2014-10-101-3/+3
| | | | | | | | | | | | This should have been done in 63207e1
| * | Update check files for -Ydelambdafy:methodLukas Rytz2014-10-101-2/+2
| | | | | | | | | | | | Should have been done in 63207e1.
* | | Add missing canonical combinators:Viktor Klang2014-10-205-2/+400
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - `def transform[S](f: Try[T] => Try[S])(implicit executor: ExecutionContext): Future[S]` - `def transformWith[S](f: Try[T] => Future[S])(implicit executor: ExecutionContext): Future[S]` - `def flatten[S](implicit ev: T <:< Future[S]): Future[S]` - `def zipWith[U, R](that: Future[U])(f: (T, U) => R)(implicit executor: ExecutionContext): Future[R]` Add missing utilities: - `val unit: Future[Unit]` in `object Future` - `object never extends Future[Nothing]` in `object Future` - `def defaultBlockContext: BlockContext` in `object BlockContext` - `def toString: String` on stdlib implementations of `Future` Refactors: - the `scala.concurrent.Future` trait to not explicit create any `Promises`, so that implementations can control implementation type, this is mainly facilitated through adding of the `transform` and `transformWith` methods. - the implementation of `ExecutionContextImpl` has been cleaned up - the `scala.concurrent.impl.DefaultPromise` has been reimplemented to not use `sun.misc.Unsafe` Securing: - Add a self-check in `completeWith` and `tryCompleteWith` to avoid cycles in trait Promise - Capping the maximum number of threads for the global `ExecutionContext` to the max parallelism - Implementing (almost) all `Future` combinators on `transformWith` and `transform` means that `DefaultPromise` linking works on both `(flat)map` and `recover(With)` - Nested `blocking {}` should not spawn extra threads beyond the first. Removes: - the private `internalExecutor` method in favor of an import in trait `Future` - the private `internalExecutor` method in favor of an import in trait `Promise` - the `AtomicReferenceFieldUpdater` in `AbstractPromise` since we're using `Unsafe` - `scala.concurrent.impl.Future` is no longer needed Deprecates: - `Future.onSuccess` - discourage the use of callbacks (and is also redundant considering `foreach` and `onComplete`) - `Future.onFailure` - discourage the use of callbacks (and is also redundant considering `onComplete` and `failed.foreach`) - `ExecutionContext.prepare` - it was ill specced and it is too easy to forget to call it (or even know when to call it or call it more times than needed) - All classes in scala.concurrent.forkjoin. Scala 2.12 will be Java 8+ and as such the jsr166e should be used as included in java.util.concurrent. Reimplements: - `failed` - in terms of `transform` - `map` - in terms of `transform` - `flatMap` - in terms of `transformWith` - `recover` - in terms of `transform` - `recoverWith` - in terms of `transformWith` - `zip` - in terms of `flatMap` + `map` - `fallbackTo` - in terms of `recoverWith` + `recoverWith` - `andThen` - in terms of `transform` Miscellaneous: - Giving the threads of `ExecutionContext.global` sensible names - Optimizes `object Future.successful` and `object Future.failed` are now separate implementations, to optimize for the result, avoiding doing work for the "other branch". - Optimizes `compressedRoot()` by avoiding double-calls to volatile get. Documentation: - Almost all methods on `Future` and `Promise` have been revisited and had their ScalaDoc updated Tests: - Yes