public static ComponentLibraryCatalogService get() {
        if (REF == null) {
            throw new IllegalStateException("REF is not initialized");
        }
        return REF;
    }
ComponentLibraryCatalogUtil provides convenience access for {@link ComponentLibraryCatalogService} service in the
core module's default provider.
Notice, this util should not be used out of the core module's default provide, otherwise, it breaks the isolation
cross modules.

@since 9.4.0
oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/ComponentLibraryCatalogUtil.java