Merge branch 'master' into develop

Author: qwwdfsad

README.md

@@ -3,11 +3,11 @@
 [![official JetBrains project](https://jb.gg/badges/official.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
 [![GitHub license](https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg?style=flat)](https://www.apache.org/licenses/LICENSE-2.0)
 [![Download](https://img.shields.io/maven-central/v/org.jetbrains.kotlinx/kotlinx-coroutines-core/1.6.1)](https://search.maven.org/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core/1.6.1/pom)
-[![Kotlin](https://img.shields.io/badge/kotlin-1.6.1-blue.svg?logo=kotlin)](http://kotlinlang.org)
+[![Kotlin](https://img.shields.io/badge/kotlin-1.6.0-blue.svg?logo=kotlin)](http://kotlinlang.org)
 [![Slack channel](https://img.shields.io/badge/chat-slack-green.svg?logo=slack)](https://kotlinlang.slack.com/messages/coroutines/)
 
 Library support for Kotlin coroutines with [multiplatform](#multiplatform) support.
-This is a companion version for the Kotlin `1.6.1` release.
+This is a companion version for the Kotlin `1.6.0` release.
 
 ```kotlin
 suspend fun main() = coroutineScope {

kotlinx-coroutines-core/common/src/channels/ConflatedChannel.kt

@@ -19,7 +19,7 @@ import kotlinx.coroutines.selects.*
  */
 internal open class ConflatedChannel<E>(onUndeliveredElement: OnUndeliveredElement<E>?) : AbstractChannel<E>(onUndeliveredElement) {
     protected final override val isBufferAlwaysEmpty: Boolean get() = false
-    protected final override val isBufferEmpty: Boolean get() = value === EMPTY
+    protected final override val isBufferEmpty: Boolean get() = lock.withLock { value === EMPTY }
     protected final override val isBufferAlwaysFull: Boolean get() = false
     protected final override val isBufferFull: Boolean get() = false
 
@@ -139,5 +139,5 @@ internal open class ConflatedChannel<E>(onUndeliveredElement: OnUndeliveredEleme
     // ------ debug ------
 
     override val bufferDebugString: String
-        get() = "(value=$value)"
+        get() = lock.withLock { "(value=$value)" }
 }

kotlinx-coroutines-test/README.md

@@ -362,7 +362,7 @@ This API is experimental and it is may change before migrating out of experiment
 Changes during experimental may have deprecation applied when possible, but it is not
 advised to use the API in stable code before it leaves experimental due to possible breaking changes.
 
-If you have any suggestions for improvements to this experimental API please share them them on the
+If you have any suggestions for improvements to this experimental API please share them on the
 [issue tracker](https://github.com/Kotlin/kotlinx.coroutines/issues).
 
 <!--- MODULE kotlinx-coroutines-core -->