Schema redirect - opaque URI strange check - URIUtils

URIUtils schema URI checker used for URITranslatorConfigurationBuilder.addSchemaRedirect() checks path of URI not ending with slash.

json-schema-core/src/main/java/com/github/fge/jsonschema/core/util/URIUtils.java

Line 201 in 8934db5

BUNDLE.checkArgumentPrintf(!argument.getPath().endsWith("/"),

This is problem for opaque URI (e.g. URN) where there is no path and such call throws NullPointerException.
This path check seems unnecessary as normalization use only scheme, scheme specific part and fragment of URI (not path).

json-schema-core/src/main/java/com/github/fge/jsonschema/core/util/URIUtils.java

Line 143 in 8934db5

return new URI(uri.getScheme(), uri.getSchemeSpecificPart(),

Please verify check and normalization correlation. Or maybe just NPE aid will do the thing.
Thanks