Re: Lambda Expressions and JavaCompiler problem
Jeroen Frijters <[email protected]>
| Newsgroups | gmane.comp.java.ikvm.devel |
|---|---|
| Message-ID | <[email protected]> |
Testing is the only way. > -----Original Message----- > From: Alessandro Montanari [mailto:[email protected]] > Sent: Monday, July 7, 2014 11:22 > To: Jeroen Frijters > Cc: [email protected] > Subject: Re: [Ikvm-developers] Lambda Expressions and JavaCompiler > problem > > I copied all IKVM assemblies next to the .exe and now it works, thank > you a lot. > > Before I had only the minimum number of assemblies necessary to run the > app. > Is there a way to figure out which one was missing so I can avoid > carrying around useless assemblies? > > Thanks, > Alessandro > > > > > > 2014-07-07 10:56 GMT+02:00 Jeroen Frijters <[email protected] > <mailto:[email protected]> >: > > > Are you sure that all IKVM.OpenJDK.*.dll assemblies are available > in your application binary directory? > > > > -----Original Message----- > > From: Alessandro Montanari [mailto:[email protected] > <mailto:[email protected]> ] > > > Sent: Monday, July 7, 2014 10:44 > > To: Jeroen Frijters > > Cc: [email protected] <mailto:ikvm- > [email protected]> > > Subject: Re: [Ikvm-developers] Lambda Expressions and > JavaCompiler > > problem > > > > > Hi Jeroen, > > > > yes, the version 8.0.5296. > > > > > > Alessandro > > > > > > 2014-07-07 9:38 GMT+01:00 Jeroen Frijters <[email protected] > <mailto:[email protected]> > > > <mailto:[email protected] <mailto:[email protected]> > >: > > > > > > > Hi Alessandro, > > > > Are you using the most recent IKVM snapshot? > > > > Regards, > > Jeroen > > > > > > > -----Original Message----- > > > From: Alessandro Montanari [mailto:[email protected] > <mailto:[email protected]> > > <mailto:[email protected] <mailto:[email protected]> > ] > > > Sent: Monday, July 7, 2014 9:43 > > > > To: [email protected] <mailto:ikvm- > [email protected]> <mailto:ikvm- <mailto:ikvm-> > > [email protected] > <mailto:[email protected]> > > > > Subject: [Ikvm-developers] Lambda Expressions and > JavaCompiler > > problem > > > > > > Hi, > > > we are using IKVM to provide the .NET version of the > tuProlog > > engine > > > (http://apice.unibo.it/xwiki/bin/view/Tuprolog/). > > > In the recent weeks we added support for lambdas > expressions into > > the > > > java version, so the user can write his own lambda > ((s1,s2) -> > > > s1.indexOf(s2) for example) and use it inside a prolog > program. > > > > > > In practice what we are doing in java is the following: > > > 1 - at runtime we build the string of a class that > contains the > > user's > > > lambda, for example: > > > public class MyLambda { > > > public java.util.function.BiFunction<String, String, > > Integer> > > > getFunction() { > > > return <here the user's lambda>; > > > } > > > } > > > 2 - we use the class javax.tools.JavaCompiler to compile > the > > class on > > > the fly; > > > 3 - we instantiate the class and then we use the function > > returned by > > > the method "getFunction()". > > > > > > In order to make it run on IKVM we added the following > line > > before the > > > retrieving of the JavaCompiler: > > > > > > ikvm.runtime.Startup.addBootClassPathAssemby(Assembly.Load("IKVM.OpenJDK > > > .Tools")); > > > jc = ToolProvider.getSystemJavaCompiler(); > > > > > > Now the problem is that when we try to excute what I > described > > above > > > with a user's lambda we get this error: > > > An exception has occurred in the compiler (1.8.0- > internal). > > Please file > > > a bug at the Java Developer Connection > > > (http://java.sun.com/webapps/bugreport) after checking > the Bug > > Parade > > > for duplicates. Include your program and the following > diagnostic > > in > > > your report. Thank you. > > > java.lang.ClassCastException: Unable to cast object of > type > > > 'java.util.PropertyResourceBundle' to type > > > 'sun.util.resources.OpenListResourceBundle'. > > > at > > > > > > sun.util.resources.LocaleData.getCurrencyNames(LocaleData.java:84) > > > at > > > > > > sun.util.locale.provider.LocaleResources.getCurrencyName(LocaleResources > > > .java:216) > > > at > > > > > > sun.util.locale.provider.CurrencyNameProviderImpl.getString(CurrencyName > > > ProviderImpl.java:122) > > > at > > > > > > sun.util.locale.provider.CurrencyNameProviderImpl.getSymbol(CurrencyName > > > ProviderImpl.java:90) > > > at > > > > > > java.util.Currency$CurrencyNameGetter.getObject(Currency.java:647) > > > at > > > > > > java.util.Currency$CurrencyNameGetter.getObject(Currency.java:625) > > > at > > > > > > sun.util.locale.provider.LocaleServiceProviderPool.getLocalizedObjectImp > > > l(LocaleServiceProviderPool.java:281) > > > at > > > > > > sun.util.locale.provider.LocaleServiceProviderPool.getLocalizedObject(Lo > > > caleServiceProviderPool.java:265) > > > at > java.util.Currency.getSymbol(Currency.java:505) > > > at > > > > > > java.text.DecimalFormatSymbols.initialize(DecimalFormatSymbols.java:648) > > > at > > > > > > java.text.DecimalFormatSymbols.<init>(DecimalFormatSymbols.java:113) > > > at > > > > > > sun.util.locale.provider.DecimalFormatSymbolsProviderImpl.getInstance > > > (DecimalFormatSymbolsProviderImpl.java:85) > > > at > > > > > > java.text.DecimalFormatSymbols.getInstance(DecimalFormatSymbols.java:181 > > > ) > > > at > java.util.Formatter.getZero(Formatter.java:2283) > > > at > java.util.Formatter.<init>(Formatter.java:1892) > > > at > java.util.Formatter.<init>(Formatter.java:1914) > > > at > java.lang.StringHelper.format(StringHelper.java:2534) > > > at > > > > > > com.sun.tools.javac.comp.DeferredAttr$DeferredTypeMap.<init>(DeferredAtt > > > r.java:677) > > > at > > com.sun.tools.javac.comp.Attr.checkMethod(Attr.java:3789) > > > at > > com.sun.tools.javac.comp.Attr.checkIdInternal(Attr.java:3583) > > > at > > > > > > com.sun.tools.javac.comp.Attr.checkMethodIdInternal(Attr.java:3494) > > > at > > com.sun.tools.javac.comp.Attr.checkMethodId(Attr.java:3468) > > > at > com.sun.tools.javac.comp.Attr.checkId(Attr.java:3455) > > > at > > com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1815) > > > at > > > > > > com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:14 > > > 59) > > > at > > com.sun.tools.javac.comp.Attr.attribTree(Attr.java:597) > > > at > > com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:645) > > > at > > com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1596) > > > at > > > > > > com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java > > > :1290) > > > at > > com.sun.tools.javac.comp.Attr.attribTree(Attr.java:597) > > > at > > com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665) > > > at > > com.sun.tools.javac.comp.Attr.attribStats(Attr.java:680) > > > at > > com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1127) > > > at > > > > com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:903) > > > at > > com.sun.tools.javac.comp.Attr.attribTree(Attr.java:597) > > > at > > com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665) > > > at > > com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1020) > > > at > > > > > > com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:772) > > > at > > com.sun.tools.javac.comp.Attr.attribTree(Attr.java:597) > > > at > > com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665) > > > at > > com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4308) > > > at > > com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4217) > > > at > > com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4149) > > > at > com.sun.tools.javac.comp.Attr.attrib(Attr.java:4124) > > > at > > > > > > com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1252) > > > at > > > > > > com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:904) > > > at > > > > > > com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:864) > > > at > com.sun.tools.javac.main.Main.compile(Main.java:530) > > > at > > > > > > com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129) > > > at > > > > > > com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138) > > > at > > > > alice.util.proxyGenerator.Generator.compile(Generator.java:58) > > > at > > alice.util.proxyGenerator.Generator.make(Generator.java:48) > > > at > > alice.tuprolog.lib.OOLibrary.new_lambda_3(OOLibrary.java:287) > > > at > java.lang.reflect.Method.invoke(Method.java:472) > > > at > > > > > > alice.tuprolog.PrimitiveInfo.evalAsPredicate(PrimitiveInfo.java:123) > > > at > > > > > > alice.tuprolog.StateGoalEvaluation.doJob(StateGoalEvaluation.java:42) > > > at alice.tuprolog.Engine.run(Engine.java:78) > > > at > > alice.tuprolog.EngineRunner.solve(EngineRunner.java:179) > > > at > > alice.tuprolog.EngineManager.solve(EngineManager.java:227) > > > at alice.tuprolog.Prolog.solve(Prolog.java:435) > > > at alice.tuprolog.Prolog.solve(Prolog.java:455) > > > at > > alice.tuprologx.ide.EngineThread.run(EngineThread.java:52) > > > Compile failed: > > > public class MyLambdaFunction1 { > > > public > java.util.function.BiFunction<String,String,Integer> > > > getFunction() { > > > return (s1,s2) -> s1.indexOf(s2); > > > } > > > } > > > > > > Does anybody have any idea? > > > > > > Thank you, > > > Alessandro > > > > > > > ------------------------------------------------------------------------------ Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner 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