PsiClass (@NotNull String classFQN, @NotNull CreateClassKind classKind, @NotNull PsiDirectory rootDir, @NotNull PsiElement contextElement, @Nullable String superClassName) { String packageName = StringUtil.getPackageName(classFQN); int lastDot = classFQN.lastIndexOf('.'); String className = lastDot >= 0 ? classFQN.substring(lastDot + 1) : classFQN; PsiDirectory packageDir = getOrCreatePackageDirInRoot(packageName, rootDir); if (packageDir == null) return null; return CreateFromUsageUtils.createClass(classKind, packageDir, className, contextElement.getManager(), contextElement, null, superClassName); }