public static void replaceMovedMemberTypeParameters( final PsiElement member, final Iterable<PsiTypeParameter> parametersIterable, final PsiSubstitutor substitutor, final GroovyPsiElementFactory factory) { final Map<PsiElement, PsiElement> replacement = new LinkedHashMap<PsiElement, PsiElement>(); for (PsiTypeParameter parameter : parametersIterable) { PsiType substitutedType = substitutor.substitute(parameter); if (substitutedType == null) { substitutedType = TypeConversionUtil.erasure(factory.createType(parameter)); } PsiElement scopeElement = member instanceof GrField ? member.getParent() : member; for (PsiReference reference : ReferencesSearch.search(parameter, new LocalSearchScope(scopeElement))) { final PsiElement element = reference.getElement(); final PsiElement parent = element.getParent(); if (parent instanceof PsiTypeElement) { replacement.put(parent, factory.createTypeElement(substitutedType)); } else if (element instanceof GrCodeReferenceElement && substitutedType instanceof PsiClassType) { replacement.put( element, factory.createReferenceElementByType((PsiClassType) substitutedType)); } } } for (PsiElement element : replacement.keySet()) { if (element.isValid()) { element.replace(replacement.get(element)); } } }