タイプセーフティ・アクチベータ1.3.9動作しなくなりました（バージョン無制限）

Question

activator 1.3.9 Play-Scala 2.3.8の新鮮なUbuntu 15.10ボックス（jdk 8、scala 2.11.6が既にインストールされています） ）。

j3d@gonzo:~$ activator 
Getting com.typesafe.activator activator-launcher 1.3.9 ... 

:: problems summary :: 
:::: WARNINGS 
     module not found: com.typesafe.activator#activator-launcher;1.3.9 

    ==== local: tried 

     /home/j3d/.ivy2/local/com.typesafe.activator/activator-launcher/1.3.9/ivys/ivy.xml 

     -- artifact com.typesafe.activator#activator-launcher;1.3.9!activator-launcher.jar: 

     /home/j3d/.ivy2/local/com.typesafe.activator/activator-launcher/1.3.9/jars/activator-launcher.jar 

    ==== activator-launcher-local: tried 

     file:/opt/activator-1.3.9-minimal/repository/com.typesafe.activator/activator-launcher/1.3.9/ivys/ivy.xml 

    ==== Maven Central: tried 

     https://repo1.maven.org/maven2/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.pom 

     -- artifact com.typesafe.activator#activator-launcher;1.3.9!activator-launcher.jar: 

     https://repo1.maven.org/maven2/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.jar 

    ==== typesafe-releases: tried 

     https://repo.typesafe.com/typesafe/releases/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.pom 

     -- artifact com.typesafe.activator#activator-launcher;1.3.9!activator-launcher.jar: 

     https://repo.typesafe.com/typesafe/releases/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.jar 

    ==== typesafe-ivy-releasez: tried 

     https://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.activator/activator-launcher/1.3.9/ivys/ivy.xml 

     :::::::::::::::::::::::::::::::::::::::::::::: 

     ::   UNRESOLVED DEPENDENCIES   :: 

     :::::::::::::::::::::::::::::::::::::::::::::: 

     :: com.typesafe.activator#activator-launcher;1.3.9: not found 

     :::::::::::::::::::::::::::::::::::::::::::::: 


:::: ERRORS 
    Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo1.maven.org/maven2/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.pom 

    Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo1.maven.org/maven2/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.jar 

    Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.typesafe.com/typesafe/releases/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.pom 

    Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.typesafe.com/typesafe/releases/com/typesafe/activator/activator-launcher/1.3.9/activator-launcher-1.3.9.jar 

    Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.activator/activator-launcher/1.3.9/ivys/ivy.xml 


:: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS 
unresolved dependency: com.typesafe.activator#activator-launcher;1.3.9: not found 
Error during sbt execution: Error retrieving required libraries 
    (see /home/j3d/.sbt/boot/update.log for complete log) 
Error: Could not retrieve activator-launcher 1.3.9 

.sbt、 .ivy2を削除しようとしました

...しかし決して：

問題は（さえactivatorの最新バージョンで）activatorは、もはや作品と私は常に次のエラーが出るということではありません。どんな助けでも本当に感謝しています。

Answer 1

よろしくお願いします。問題はJDKでした。私のUbuntuボックスにはOpenJDK-8がインストールされていましたが、アクチベータはそれに対応していません（どうして私に質問しないでください）。最終的にOpenJDK-8を削除し、OracleのJava 8をインストールしました。これで動作します。