Hi Gábor, I used it, yes, but I never encountered such a problem. Let's hope that the error message Márton discovered helps. :-)
Cheers, Aljoscha On Mon, 9 May 2016 at 11:38 Márton Balassi <balassi.mar...@gmail.com> wrote: > Hi Gabor, > > I have checked out your branch and tried debugging WordCountPojo to > reproduce the behaviour. I am on a Mac with jdk1.8.0_91. I have received > the following error when trying to access the constructors of the class in > question: > > Exception in thread "main" java.lang.VerifyError: (class: > > org/apache/flink/api/java/typeutils/runtime/generated/Word_GeneratedSerializer, > method: deserialize signature: > > (Lorg/apache/flink/core/memory/DataInputView;)Lorg/apache/flink/examples/java/wordcount/WordCountPojo$Word;) > Register 3 contains wrong type > at java.lang.Class.getDeclaredConstructors0(Native Method) > at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) > at java.lang.Class.getConstructors(Class.java:1651) > at > > org.apache.flink.api.java.typeutils.runtime.PojoSerializerGenerator.createSerializer(PojoSerializerGenerator.java:57) > at > > org.apache.flink.api.java.typeutils.PojoTypeInfo.createSerializer(PojoTypeInfo.java:306) > at org.apache.flink.api.java.DataSet.collect(DataSet.java:407) > at org.apache.flink.api.java.DataSet.print(DataSet.java:1605) > at > > org.apache.flink.examples.java.wordcount.WordCountPojo.main(WordCountPojo.java:119) > Disconnected from the target VM, address: '127.0.0.1:52140', transport: > 'socket' > > I hope this helps. > > Marton > > On Sun, May 8, 2016 at 2:59 PM, Gábor Horváth <xazax....@gmail.com> wrote: > > > Hi! > > > > I have created a proof of concept implementation of my GSoC project [1]: > > introducing code generation to the serializers. The code is available > here > > [2]. Unfortunately I have run into a problem that I am unable to debug. I > > generated some code that I compiled using the Janino compiler [4]. I did > > not get any exception during the compilation, and I was able to get the > > Class from the compiler. Unfortunately I am unable to get the list of the > > constructors from the Class and can not debug what is the source of the > > problem. There are no exceptions thrown, no errors displayed in the event > > log, no fatal error logfile generated by the JVM, but the process > > terminates (at line [3]). I suspect that the Class generated by the > Janino > > compiler is invalid, but it does not emit any exceptions or warnings. I > am > > using Oracle JDK 8, on Arch Linux. Have you seen any similar problem? Is > > there a way to debug a situation like this? Is there a way to get extra > > diagnostics from the Janino compiler? > > > > @aljoscha: you have some experience with the Janino compiler, what do you > > think? > > > > Thanks in advance, > > Gábor > > > > [1] https://issues.apache.org/jira/browse/FLINK-3599 > > [2] https://github.com/Xazax-hun/flink/commits/serializer_codegen > > [3] > > > > > https://github.com/Xazax-hun/flink/commit/af499d5bebe5c1dba6b970977852318346636a8f#diff-7a2080515bac95cec58032655867d6cfR57 > > [4] http://unkrig.de/w/Janino > > >
