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via Google Groups by William Colen, 1 year ago
/webapp/WebAppClassLoader) of the current class, org/jboss/weld/Weld, and its superclass loader (instance of org/codehaus/plexus/classworlds/realm/ClassRealm), have different Class objects for the type tion/Annotation;)Ljavax/enterprise
java.lang.LinkageError: loader constraint violation: when resolving 
 overridden method 
 "org.jboss.weld.Weld.select(Ljavax/enterprise/util/TypeLiteral;[Ljava/lang/annotation/Annotation;)Ljavax/enterprise/inject/Instance;" 
 the class loader (instance of org/eclipse/jetty/webapp/WebAppClassLoader) 
 of the current class, org/jboss/weld/Weld, and its superclass loader 
 (instance of org/codehaus/plexus/classworlds/realm/ClassRealm), have 
 different Class objects for the type 
 tion/Annotation;)Ljavax/enterprise/inject/Instance; used in the signature
  at 
 org.jboss.weld.servlet.StaticWeldProvider$WeldSingleton.<clinit>(StaticWeldProvider.java:29)
 at 
 org.jboss.weld.servlet.StaticWeldProvider.getCDI(StaticWeldProvider.java:49)	at javax.enterprise.inject.spi.CDI.current(CDI.java:60)