}
            }

            tasks.register('checkSignature') {
                doLast {
                    def signedClass = org.bouncycastle.jce.provider.BouncyCastleProvider.class
                    assert signedClass.signers != null
                }
            }
        """

        when:
        succeeds 'checkSignature'

        then:
        noExceptionThrown()
    }