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Activator start error.) java.lang.TypeNotPresentException: Type javax.xml.stream.XMLInputFactory not present
java.lang.ClassNotFoundException: javax.xml.stream.XMLInputFactory	at org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:198)	at org.apache.felix.framework.searchpolicy.R4SearchPolicy.findClass(R4SearchPolicy.java:45)	at org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClass(ContentClassLoader.java:109)	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:242)	at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:95)	at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:107)	at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:31)	at sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:370)	at sun.reflect.annotation.AnnotationParser.parseClassValue(AnnotationParser.java:351)	at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:280)	at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:222)	at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:69)	at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:52)	at java.lang.Class.initAnnotationsIfNecessary(Class.java:3031)	at java.lang.Class.getAnnotation(Class.java:2989)	at org.jvnet.hk2.component.Wombs.create(Wombs.java:51)	at com.sun.hk2.component.LazyInhabitant.createWomb(LazyInhabitant.java:102)	at com.sun.hk2.component.LazyInhabitant.fetch(LazyInhabitant.java:92)	at com.sun.hk2.component.LazyInhabitant.type(LazyInhabitant.java:78)	at org.jvnet.hk2.component.Habitat.addIndex(Habitat.java:149)