playframework - 使用 Java 1.8 运行框架 1.2.7.x

Question

Java 1.8 是否支持 Play framework 1.2.7？我能够预编译应用程序，但它失败并在启动时出现以下错误

@6o4d1jh71
Internal Server Error (500) for request GET /

Oops: UnexpectedException
An unexpected error occured caused by exception UnexpectedException: While applying class play.classloading.enhancers.ContinuationEnhancer on helpers.CheatSheetHelper$2

play.exceptions.UnexpectedException: While applying play.CorePlugin@6b0c2d26 on helpers.CheatSheetHelper$2
        at play.plugins.PluginCollection.enhance(PluginCollection.java:566)
        at play.classloading.ApplicationClasses$ApplicationClass.enhance(ApplicationClasses.java:235)
        at play.classloading.ApplicationClassloader.loadApplicationClass(ApplicationClassloader.java:167)
        at play.classloading.ApplicationClassloader.getAllClasses(ApplicationClassloader.java:431)
        at play.Play.start(Play.java:526)
        at play.Play.detectChanges(Play.java:640)
        at play.Invoker$Invocation.init(Invoker.java:198)
        at Invocation.HTTP Request(Play!)
Caused by: play.exceptions.UnexpectedException: While applying class play.classloading.enhancers.ContinuationEnhancer on helpers.CheatSheetHelper$2
        at play.CorePlugin.enhance(CorePlugin.java:302)
        at play.plugins.PluginCollection.enhance(PluginCollection.java:561)
        ... 7 more
Caused by: java.lang.RuntimeException: java.io.IOException: invalid constant type: 15
        at javassist.CtClassType.getClassFile2(CtClassType.java:203)
        at javassist.CtClassType.subtypeOf(CtClassType.java:303)
        at javassist.CtClassType.subtypeOf(CtClassType.java:318)
        at play.classloading.enhancers.ContinuationEnhancer.enhanceThisClass(ContinuationEnhancer.java:49)
        at play.CorePlugin.enhance(CorePlugin.java:297)
        ... 8 more
Caused by: java.io.IOException: invalid constant type: 15
        at javassist.bytecode.ConstPool.readOne(ConstPool.java:1027)
        at javassist.bytecode.ConstPool.read(ConstPool.java:970)
        at javassist.bytecode.ConstPool.<init>(ConstPool.java:127)
        at javassist.bytecode.ClassFile.read(ClassFile.java:693)
        at javassist.bytecode.ClassFile.<init>(ClassFile.java:85)
        at javassist.CtClassType.getClassFile2(CtClassType.java:190)

Answer 1

也许这个答案来晚了，但是...... 据我所知，1.2.X 没有 java 8 支持，但遵循以下答案:Play framework 1.x with java 8您可以轻松迁移到 1.3 并使用该解决方案。我刚刚从 1.2 迁移到 1.4，没有出现大问题。