Polish tests

oauth2/oauth2-client/src/test/java/org/springframework/security/oauth2/client/registration/ClientRegistrationsTest.java

@@ -140,7 +140,7 @@ public class ClientRegistrationsTest {
 	@Test
 	public void issuerWhenContainsTrailingSlashThenSuccess() throws Exception {
 		assertThat(registration("")).isNotNull();
-		assertThat(this.issuer.endsWith("/")).isTrue();
+		assertThat(this.issuer).endsWith("/");
 	}
 
 	/**

oauth2/oauth2-jose/src/test/java/org/springframework/security/oauth2/jwt/JwtDecodersTests.java

@@ -97,7 +97,7 @@ public class JwtDecodersTests {
 		prepareOpenIdConfigurationResponse();
 		this.server.enqueue(new MockResponse().setBody(JWK_SET));
 		assertThat(JwtDecoders.fromOidcIssuerLocation(this.issuer)).isNotNull();
-		assertThat(this.issuer.endsWith("/")).isTrue();
+		assertThat(this.issuer).endsWith("/");
 	}
 
 	@Test