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java.lang.ClassFormatError: Duplicate method name&signature in class file EXAMPLE$ #4753
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Imported From: https://issues.scala-lang.org/browse/SI-4753?orig=1 |
Ricardo L (rmleon) said: rleon$ scala -version scala> trait A { val typeName: String }; trait B extends A { val actualType: Class[_]; final lazy val typeName = actualType.getName }; trait C extends B { final val actualType = classOf[Boolean] }; scala> object EXAMPLE extends C If I remove the "final" keyword, it works. |
@paulp said: |
Mac OSX
Scala 2.9.0-1 REPL
scala> trait A { val typeName: String }
defined trait A
scala> trait B extends A { val actualType: Class[_]; final lazy val typeName = actualType.getName }
defined trait B
scala> trait C extends B { final val actualType = classOf[Boolean] }
defined trait C
scala> object EXAMPLE extends C
java.lang.ClassFormatError: Duplicate method name&signature in class file EXAMPLE$
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.lang.ClassLoader.defineClass(ClassLoader.java:466)
at scala.tools.nsc.interpreter.AbstractFileClassLoader.findClass(AbstractFileClassLoader.scala:52)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at scala.tools.nsc.interpreter.AbstractFileClassLoader.scala$tools$nsc$util$ScalaClassLoader$$super$loadClass(AbstractFileClassLoader.scala:17)
at scala.tools.nsc.util.ScalaClassLoader$class.loadClass(ScalaClassLoader.scala:50)
at scala.tools.nsc.interpreter.AbstractFileClassLoader.loadClass(AbstractFileClassLoader.scala:17)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.privateGetPublicMethods(Class.java:2547)
at java.lang.Class.getMethods(Class.java:1410)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.evalMethod(IMain.scala:628)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:592)
at scala.tools.nsc.interpreter.IMain$Request$$anonfun$10.apply(IMain.scala:828)
at scala.tools.nsc.interpreter.Line$$anonfun$1.apply$mcV$sp(Line.scala:43)
at scala.tools.nsc.io.package$$anon$2.run(package.scala:31)
at java.lang.Thread.run(Thread.java:680)
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