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Eclipse Luna(4.4.1) + Aptana 3にClassCastExceptionで起動時エラー

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Eclipse 4.4.1(2014/11/04時点の最新)にAptana3をインストールしたら、起動時エラーが発生した。

ClassCastExceptionだそうだ
luna+aptana.png

Rubleのスタートアップで失敗しているようだが、「Eclipse:Start Ruble bundle managerで内部エラー(NullPointerException)」とは違う。
(ちなみに、この状態だとメニューバーのCommandが空っぽ)

(内容はよくわからないけど)関係ない内容のはずのDocker開発環境をつくる - Emacs24とEclimからEclipseに接続するJava開発環境でもまったく同じエラーログが吐かれている。

!ENTRY org.eclipse.m2e.logback.configuration 2 0 2014-10-27 15:09:41.613
!MESSAGE Exception while setting up logging:org.eclipse.osgi.internal.framework.EquinoxConfiguration$1 cannot be cast to java.lang.String
!STACK 0
java.lang.ClassCastException: org.eclipse.osgi.internal.framework.EquinoxConfiguration$1 cannot be cast to java.lang.String
at org.eclipse.m2e.logback.configuration.LogHelper.logJavaProperties(LogHelper.java:26)
at org.eclipse.m2e.logback.configuration.LogPlugin.loadConfiguration(LogPlugin.java:189)
at org.eclipse.m2e.logback.configuration.LogPlugin.configureLogback(LogPlugin.java:144)
at org.eclipse.m2e.logback.configuration.LogPlugin.access$2(LogPlugin.java:107)
at org.eclipse.m2e.logback.configuration.LogPlugin$1.run(LogPlugin.java:62)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

Eclipseのバージョンを4.4.0に落としてAptanaを入れ直したらエラーが起きなくなった。
4.4.1のバグかな?

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