To clarify, I think it works in our systems because we have 1.6.0_31 installed. I don't think it's related to Windows per se.
On 25 avr. 2012, at 00:17, Emmanuel Bernard wrote: > Sanne caught that one recently but your bisect helped a lot. > > It seems that we are a bit optimistic with out generic Russian dolls > > http://stackoverflow.com/questions/2431334/java-generics-what-is-the-compilers-issue-here-no-unique-maximal-instance > > /** > * Creates the proxy for an annotation using Hibernate Commons > Annotations > * @param annotation the AnnotationDescriptor > * @return the proxy > */ > private static <T extends Annotation> T > createAnnotation(AnnotationDescriptor annotation) { > //This is a filthy workaround for the Annotations proxy > generation, > //which is using the ContextClassLoader to define the proxy > classes > //(not working fine in modular environments when Search is used > by > //other services such as CapeDwarf). > //See HSEARCH-1084 > > //use annotation's own classloader > try { > return AnnotationFactory.create( annotation, > annotation.type().getClassLoader() ); > } > catch ( Exception e ) { > //first try, but we have another trick > } > //Use TCCL > return > org.hibernate.annotations.common.annotationfactory.AnnotationFactory.create( > annotation ); > } > > Basically the compiler cannot guarantee that T in the outer method is the > same as T in the AnnotationFactory.create methods. Unfortunately it yells in > some strange language. > It looks like the compiler is a bit more stupid on Windows for some obscure > reason. Could you try 1.6.0_31 (the latest)? > > On 24 avr. 2012, at 23:48, Nicolas Helleringer wrote: > >> Hi all, >> >> Fetching last master tonight I was not able to build : >> >> [ERROR] Failed to execute goal >> org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile >> (default-compile) on project hibernate-search-engine: Compilation failure: >> Compilation failure: >> [ERROR] >> \hibernate-search\hibernate-search-engine\src\main\java\org\hibernate\search\impl\MappingModelMetadataProvider.java:[251,34] >> type parameters of <T>T cannot be determined; no unique maximal instance >> exists for type variable T with upper bounds >> T,java.lang.annotation.Annotation >> [ERROR] >> \hibernate-search\hibernate-search-engine\src\main\java\org\hibernate\search\impl\MappingModelMetadataProvider.java:[257,84] >> type parameters of <T>T cannot be determined; no unique maximal instance >> exists for type variable T with upper bounds >> T,java.lang.annotation.Annotation >> >> After a goo bisect it seems 31b485c1aaabd9b0ff178505067147e5628e3010 is the >> first bad commit. >> >> It is HSEARCH-1084 Annotation proxies created by Programmatic Mapping >> >> I m still on windows 7 x64 with 1.6.0_24 jvm >> >> Hope it helps. >> >> Niko >> _______________________________________________ >> hibernate-dev mailing list >> hibernate-dev@lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/hibernate-dev > > > _______________________________________________ > hibernate-dev mailing list > hibernate-dev@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
