Unable to Parse RSA Public Key in PEM Format

Doing my best to piece together a proper setup for BC with Nimbus, I followed instructions on the following pages:

But, despite seemingly having everything set up property, I could not get Nimbus to parse an RSA public key in PEM format.

Dependencies:

com.nimbusds:nimbus-jose-jwt:9.15.2
org.bouncycastle:bcprov-jdk15on:1.69
org.bouncycastle:bcpkix-jdk15on:1.69

Data format:

-----BEGIN RSA PUBLIC KEY-----
(redacted)
-----END RSA PUBLIC KEY-----

Parse code:

JWK.parseFromPEMEncodedObjects(rsaPemString);

Error:

problem extracting key: java.lang.IllegalArgumentException: illegal object in getInstance: org.bouncycastle.asn1.DLSequence
com.nimbusds.jose.JOSEException: problem extracting key: java.lang.IllegalArgumentException: illegal object in getInstance: org.bouncycastle.asn1.DLSequence
at app//com.nimbusds.jose.jwk.PEMEncodedKeyParser.parseKeys(PEMEncodedKeyParser.java:108)
at app//com.nimbusds.jose.jwk.JWK.parseFromPEMEncodedObjects(JWK.java:764)

Also, tried adding this, but it did not make a difference:

Security.addProvider(BouncyCastleProviderSingleton.getInstance());

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