Unfortunately it doesn't quite seem to work with ASM either, although this sounds like easier to fix. Here's the stack trace for a Trivial Tapestry app using 5.3.7 on Java 8:
SEVERE: Exception starting filter Tapestry org.apache.tapestry5.ioc.internal.OperationException: Error building service proxy for service 'RegistryStartup' (at org.apache.tapestry5.ioc.internal.services.RegistryStartup(Logger, List) (at RegistryStartup.java:36) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49)): java.lang.IllegalArgumentException at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:121) at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:88) at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87) at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1124) at org.apache.tapestry5.ioc.internal.ModuleImpl.create(ModuleImpl.java:332) at org.apache.tapestry5.ioc.internal.ModuleImpl.access$100(ModuleImpl.java:39) at org.apache.tapestry5.ioc.internal.ModuleImpl$1.invoke(ModuleImpl.java:191) at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withWrite(ConcurrentBarrier.java:140) at org.apache.tapestry5.ioc.internal.ModuleImpl$2.invoke(ModuleImpl.java:207) at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85) at org.apache.tapestry5.ioc.internal.ModuleImpl.findOrCreate(ModuleImpl.java:213) at org.apache.tapestry5.ioc.internal.ModuleImpl.getService(ModuleImpl.java:109) at org.apache.tapestry5.ioc.internal.RegistryImpl.getService(RegistryImpl.java:421) at org.apache.tapestry5.ioc.internal.RegistryImpl.performRegistryStartup(RegistryImpl.java:325) at org.apache.tapestry5.ioc.internal.RegistryWrapper.performRegistryStartup(RegistryWrapper.java:80) at org.apache.tapestry5.TapestryFilter.init(TapestryFilter.java:118) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:976) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1653) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.RuntimeException: Error building service proxy for service 'RegistryStartup' (at org.apache.tapestry5.ioc.internal.services.RegistryStartup(Logger, List) (at RegistryStartup.java:36) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49)): java.lang.IllegalArgumentException at org.apache.tapestry5.ioc.internal.ModuleImpl$4.invoke(ModuleImpl.java:327) at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74) ... 30 more Caused by: java.lang.IllegalArgumentException at org.apache.tapestry5.internal.plastic.asm.ClassReader.<init>(ClassReader.java:167) at org.apache.tapestry5.internal.plastic.asm.ClassReader.<init>(ClassReader.java:153) at org.apache.tapestry5.internal.plastic.PlasticInternalUtils.convertBytecodeToClassNode(PlasticInternalUtils.java:436) at org.apache.tapestry5.internal.plastic.PlasticClassPool.constructClassNodeFromBytecode(PlasticClassPool.java:481) at org.apache.tapestry5.internal.plastic.PlasticClassPool$1.convert(PlasticClassPool.java:62) at org.apache.tapestry5.internal.plastic.PlasticClassPool$1.convert(PlasticClassPool.java:59) at org.apache.tapestry5.internal.plastic.Cache.get(Cache.java:37) at org.apache.tapestry5.internal.plastic.PlasticClassPool.getTypeCategory(PlasticClassPool.java:562) at org.apache.tapestry5.internal.plastic.PlasticMethodImpl.invokeDelegateAndReturnResult(PlasticMethodImpl.java:363) at org.apache.tapestry5.internal.plastic.PlasticMethodImpl.access$000(PlasticMethodImpl.java:24) at org.apache.tapestry5.internal.plastic.PlasticMethodImpl$2.doBuild(PlasticMethodImpl.java:221) at org.apache.tapestry5.internal.plastic.InstructionBuilderImpl.doCallback(InstructionBuilderImpl.java:832) at org.apache.tapestry5.internal.plastic.PlasticMethodImpl.changeImplementation(PlasticMethodImpl.java:130) at org.apache.tapestry5.internal.plastic.PlasticMethodImpl.delegateTo(PlasticMethodImpl.java:203) at org.apache.tapestry5.ioc.internal.ModuleImpl$9.transform(ModuleImpl.java:494) at org.apache.tapestry5.plastic.PlasticManager.createProxy(PlasticManager.java:235) at org.apache.tapestry5.ioc.internal.services.PlasticProxyFactoryImpl.createProxy(PlasticProxyFactoryImpl.java:64) at org.apache.tapestry5.ioc.internal.ModuleImpl.createProxyInstance(ModuleImpl.java:465) at org.apache.tapestry5.ioc.internal.ModuleImpl.createProxy(ModuleImpl.java:459) at org.apache.tapestry5.ioc.internal.ModuleImpl.access$900(ModuleImpl.java:39) at org.apache.tapestry5.ioc.internal.ModuleImpl$4.invoke(ModuleImpl.java:311) ... 31 more Kalle On Thu, Sep 19, 2013 at 11:30 AM, Kalle Korhonen <kalle.o.korho...@gmail.com > wrote: > On Thu, Sep 19, 2013 at 11:18 AM, Howard Lewis Ship <hls...@gmail.com>wrote: > >> That's a problem; any idea if the ASM code inside Plastic (for Tapestry >> 5.3+) works on JDK 8? >> Javassist is 100% gone in 5.4. >> > > Not yet but I'll try that out. > > Kalle > > >> >> I've seen some troubling discussions about bytecode changes in JDK 8 that >> are going to cause a lot of havoc. >> >> >> On Thu, Sep 19, 2013 at 11:12 AM, Kalle Korhonen < >> kalle.o.korho...@gmail.com >> > wrote: >> >> > Just a heads up for anybody venturing to try running Tapestry 5 webapp >> on >> > JRE8. Looks like the latest Javassist is incompatible, I'm getting a >> stack >> > trace copied below on advised classes. Looks like a straight-up issue >> with >> > Javassist. I didn't find any relevant bug open but I'll follow up with >> > them. Let me know if anybody has more info. >> > >> > Kalle >> > >> > 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 >> > >> javassist.compiler.MemberResolver.compareSignature(MemberResolver.java:247) >> > at >> > javassist.compiler.MemberResolver.lookupMethod(MemberResolver.java:119) >> > at >> > javassist.compiler.MemberResolver.lookupMethod(MemberResolver.java:96) >> > at >> > javassist.compiler.TypeChecker.atMethodCallCore(TypeChecker.java:704) >> > at >> javassist.compiler.TypeChecker.atCallExpr(TypeChecker.java:681) >> > at >> > javassist.compiler.JvstTypeChecker.atCallExpr(JvstTypeChecker.java:156) >> > at javassist.compiler.ast.CallExpr.accept(CallExpr.java:45) >> > at >> > >> javassist.compiler.JvstTypeChecker.atCastToRtype(JvstTypeChecker.java:112) >> > at >> > javassist.compiler.JvstTypeChecker.atCastExpr(JvstTypeChecker.java:93) >> > at javassist.compiler.ast.CastExpr.accept(CastExpr.java:54) >> > at javassist.compiler.CodeGen.doTypeCheck(CodeGen.java:241) >> > at javassist.compiler.CodeGen.compileExpr(CodeGen.java:228) >> > at javassist.compiler.CodeGen.atReturnStmnt2(CodeGen.java:597) >> > at >> > javassist.compiler.JvstCodeGen.atReturnStmnt(JvstCodeGen.java:424) >> > at javassist.compiler.CodeGen.atStmnt(CodeGen.java:362) >> > at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49) >> > at javassist.compiler.CodeGen.atMethodBody(CodeGen.java:291) >> > at javassist.compiler.Javac.compileBody(Javac.java:222) >> > at javassist.CtBehavior.setBody(CtBehavior.java:401) >> > at javassist.CtBehavior.setBody(CtBehavior.java:375) >> > at >> > >> > >> org.apache.tapestry5.ioc.internal.services.ClassFabImpl.addMethod(ClassFabImpl.java:226) >> > ... 176 more >> > Caused by: java.io.IOException: invalid constant type: 15 >> > at javassist.bytecode.ConstPool.readOne(ConstPool.java:1090) >> > at javassist.bytecode.ConstPool.read(ConstPool.java:1033) >> > at javassist.bytecode.ConstPool.<init>(ConstPool.java:149) >> > at javassist.bytecode.ClassFile.read(ClassFile.java:737) >> > at javassist.bytecode.ClassFile.<init>(ClassFile.java:108) >> > at javassist.CtClassType.getClassFile2(CtClassType.java:190) >> > ... 199 more >> > >> >> >> >> -- >> Howard M. Lewis Ship >> >> Creator of Apache Tapestry >> >> The source for Tapestry training, mentoring and support. Contact me to >> learn how I can get you up and productive in Tapestry fast! >> >> (971) 678-5210 >> http://howardlewisship.com >> > >