Merge pull request scala#3313 from OlivierBlanvillain/upstream

Fix typos in documentation

Author: retronym

src/library/scala/collection/convert/DecorateAsJava.scala

@@ -287,7 +287,7 @@ trait DecorateAsJava {
    * will be visible via the Scala interface and vice versa.
    *
    * If the Scala `concurrent.Map` was previously obtained from an implicit or
-   * explicit call of `asConcurrentMap(java.util.concurrect.ConcurrentMap)`
+   * explicit call of `asConcurrentMap(java.util.concurrent.ConcurrentMap)`
    * then the original Java `ConcurrentMap` will be returned.
    *
    * @param m The Scala `concurrent.Map` to be converted.

src/library/scala/collection/convert/WrapAsJava.scala

@@ -244,7 +244,7 @@ trait WrapAsJava {
    * will be visible via the Scala interface and vice versa.
    *
    * If the Scala `concurrent.Map` was previously obtained from an implicit or
-   * explicit call of `mapAsScalaConcurrentMap(java.util.concurrect.ConcurrentMap)`
+   * explicit call of `mapAsScalaConcurrentMap(java.util.concurrent.ConcurrentMap)`
    * then the original Java ConcurrentMap will be returned.
    *
    * @param m The Scala `concurrent.Map` to be converted.

src/library/scala/ref/WeakReference.scala

@@ -10,7 +10,7 @@
 package scala.ref
 
 /**
- *  A wrapper class for java.lag.ref.WeakReference
+ *  A wrapper class for java.lang.ref.WeakReference
  *  The new functionality is (1) results are Option values, instead of using null.
  *  (2) There is an extractor that maps the weak reference itself into an option.
  *  @author Sean McDirmid

src/library/scala/sys/process/ProcessBuilder.scala

@@ -62,7 +62,7 @@ import ProcessBuilder._
   * there's a few methods that create a new `ProcessBuilder` with a
   * pre-configured input or output. They are `#<`, `#>` and `#>>`, and may take
   * as input either another `ProcessBuilder` (like the pipe described above), or
-  * something else such as a `java.io.File` or a `java.lang.InputStream`.
+  * something else such as a `java.io.File` or a `java.io.InputStream`.
   * For example:
   * {{{
   * new URL("http://databinder.net/dispatch/About") #> "grep JSON" #>> new File("About_JSON") !