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
