Apache Camel Web 控制台的 scalate servlet 在 WebLogic 中失败
我在 scala 邮件列表 （也此处）。它似乎与 创建 scala 解释环境时类路径管理的此更改。
就我而言，scala-library 和 scala-compiler 都包含在部署到 WebLogic 10.3 的 war 中（骆驼版本：2.8.0，jvm：oracle 1.6）。
异常情况如下所示：
com.sun.jersey.api.container.ContainerException: org.fusesource.scalate.TemplateException: object scala not found.
at org.fusesource.scalate.jersey.ScalateTemplateProcessor.writeToUsingServletTemplateEngine(ScalateTemplateProcessor.scala:190)
at org.fusesource.scalate.jersey.ScalateTemplateProcessor.writeTo(ScalateTemplateProcessor.scala:136)
at org.fusesource.scalate.jersey.ScalateTemplateProcessor.writeTo(ScalateTemplateProcessor.scala:44)
at com.sun.jersey.spi.template.ResolvedViewable.writeTo(ResolvedViewable.java:103)
at com.sun.jersey.server.impl.template.ViewableMessageBodyWriter.writeTo(ViewableMessageBodyWriter.java:83)
Truncated. see log file for complete stacktrace
Caused By: org.fusesource.scalate.TemplateException: object scala not found.
at org.fusesource.scalate.TemplateEngine.compileAndLoad(TemplateEngine.scala:784)
at org.fusesource.scalate.TemplateEngine.compileAndLoadEntry(TemplateEngine.scala:643)
at org.fusesource.scalate.TemplateEngine.liftedTree1$1(TemplateEngine.scala:374)
at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:368)
at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:426)
Truncated. see log file for complete stacktrace
Caused By: scala.tools.nsc.MissingRequirementError: object scala not found.
at scala.tools.nsc.symtab.Definitions$definitions$.getModuleOrClass(Definitions.scala:653)
at scala.tools.nsc.symtab.Definitions$definitions$.getModule(Definitions.scala:603)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackage(Definitions.scala:145)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackageClass(Definitions.scala:146)
at scala.tools.nsc.symtab.Definitions$definitions$.AnyClass(Definitions.scala:176)
问题：是否可以使camel web-console在这种环境下工作？
I've found a similar issue described in detail in the scala mailing list (also here). It seems to be related to this change in classpath management when creating scala interpretation environments.
In my case both scala-library and scala-compiler are included in the war being deployed to WebLogic 10.3 (camel version: 2.8.0, jvm: oracle 1.6).
The exception is shown below:
com.sun.jersey.api.container.ContainerException: org.fusesource.scalate.TemplateException: object scala not found.
at org.fusesource.scalate.jersey.ScalateTemplateProcessor.writeToUsingServletTemplateEngine(ScalateTemplateProcessor.scala:190)
at org.fusesource.scalate.jersey.ScalateTemplateProcessor.writeTo(ScalateTemplateProcessor.scala:136)
at org.fusesource.scalate.jersey.ScalateTemplateProcessor.writeTo(ScalateTemplateProcessor.scala:44)
at com.sun.jersey.spi.template.ResolvedViewable.writeTo(ResolvedViewable.java:103)
at com.sun.jersey.server.impl.template.ViewableMessageBodyWriter.writeTo(ViewableMessageBodyWriter.java:83)
Truncated. see log file for complete stacktrace
Caused By: org.fusesource.scalate.TemplateException: object scala not found.
at org.fusesource.scalate.TemplateEngine.compileAndLoad(TemplateEngine.scala:784)
at org.fusesource.scalate.TemplateEngine.compileAndLoadEntry(TemplateEngine.scala:643)
at org.fusesource.scalate.TemplateEngine.liftedTree1$1(TemplateEngine.scala:374)
at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:368)
at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:426)
Truncated. see log file for complete stacktrace
Caused By: scala.tools.nsc.MissingRequirementError: object scala not found.
at scala.tools.nsc.symtab.Definitions$definitions$.getModuleOrClass(Definitions.scala:653)
at scala.tools.nsc.symtab.Definitions$definitions$.getModule(Definitions.scala:603)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackage(Definitions.scala:145)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackageClass(Definitions.scala:146)
at scala.tools.nsc.symtab.Definitions$definitions$.AnyClass(Definitions.scala:176)
The question: is it possible to make camel web-console work in this environment?
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不，这是 WebLogic 的问题。 Scalaete 需要添加对 WebLogic 的特殊支持，因为 WebLogic 的类加载方式与通常的做法略有不同。
No its a problem with WebLogic. Scalaete needs to add special support for WebLogic, as WebLogic does classloading a bit differently, than the usual practice.