diff --git a/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospector.java b/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospector.java
index 111af46596..81e9795d0b 100644
--- a/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospector.java
+++ b/oauth2/oauth2-resource-server/src/main/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospector.java
@@ -40,6 +40,7 @@ import org.springframework.http.client.support.BasicAuthenticationInterceptor;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.oauth2.core.OAuth2AuthenticatedPrincipal;
+import org.springframework.security.oauth2.core.OAuth2TokenIntrospectionClaimNames;
 import org.springframework.util.Assert;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
@@ -158,7 +159,7 @@ public class SpringOpaqueTokenIntrospector implements OpaqueTokenIntrospector {
 		Map<String, Object> claims = responseEntity.getBody();
 		// relying solely on the authorization server to validate this token (not checking
 		// 'exp', for example)
-		boolean active = (boolean) claims.compute(OAuth2IntrospectionClaimNames.ACTIVE, (k, v) -> {
+		boolean active = (boolean) claims.compute(OAuth2TokenIntrospectionClaimNames.ACTIVE, (k, v) -> {
 			if (v instanceof String) {
 				return Boolean.parseBoolean((String) v);
 			}
@@ -175,22 +176,22 @@ public class SpringOpaqueTokenIntrospector implements OpaqueTokenIntrospector {
 	}
 
 	private OAuth2AuthenticatedPrincipal convertClaimsSet(Map<String, Object> claims) {
-		claims.computeIfPresent(OAuth2IntrospectionClaimNames.AUDIENCE, (k, v) -> {
+		claims.computeIfPresent(OAuth2TokenIntrospectionClaimNames.AUD, (k, v) -> {
 			if (v instanceof String) {
 				return Collections.singletonList(v);
 			}
 			return v;
 		});
-		claims.computeIfPresent(OAuth2IntrospectionClaimNames.CLIENT_ID, (k, v) -> v.toString());
-		claims.computeIfPresent(OAuth2IntrospectionClaimNames.EXPIRES_AT,
+		claims.computeIfPresent(OAuth2TokenIntrospectionClaimNames.CLIENT_ID, (k, v) -> v.toString());
+		claims.computeIfPresent(OAuth2TokenIntrospectionClaimNames.EXP,
 				(k, v) -> Instant.ofEpochSecond(((Number) v).longValue()));
-		claims.computeIfPresent(OAuth2IntrospectionClaimNames.ISSUED_AT,
+		claims.computeIfPresent(OAuth2TokenIntrospectionClaimNames.IAT,
 				(k, v) -> Instant.ofEpochSecond(((Number) v).longValue()));
-		claims.computeIfPresent(OAuth2IntrospectionClaimNames.ISSUER, (k, v) -> issuer(v.toString()));
-		claims.computeIfPresent(OAuth2IntrospectionClaimNames.NOT_BEFORE,
+		claims.computeIfPresent(OAuth2TokenIntrospectionClaimNames.ISS, (k, v) -> issuer(v.toString()));
+		claims.computeIfPresent(OAuth2TokenIntrospectionClaimNames.NBF,
 				(k, v) -> Instant.ofEpochSecond(((Number) v).longValue()));
 		Collection<GrantedAuthority> authorities = new ArrayList<>();
-		claims.computeIfPresent(OAuth2IntrospectionClaimNames.SCOPE, (k, v) -> {
+		claims.computeIfPresent(OAuth2TokenIntrospectionClaimNames.SCOPE, (k, v) -> {
 			if (v instanceof String) {
 				Collection<String> scopes = Arrays.asList(((String) v).split(" "));
 				for (String scope : scopes) {
@@ -209,7 +210,7 @@ public class SpringOpaqueTokenIntrospector implements OpaqueTokenIntrospector {
 		}
 		catch (Exception ex) {
 			throw new OAuth2IntrospectionException(
-					"Invalid " + OAuth2IntrospectionClaimNames.ISSUER + " value: " + uri);
+					"Invalid " + OAuth2TokenIntrospectionClaimNames.ISS + " value: " + uri);
 		}
 	}
 
diff --git a/oauth2/oauth2-resource-server/src/test/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospectorTests.java b/oauth2/oauth2-resource-server/src/test/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospectorTests.java
index 7a49839a8d..0fd6a4934f 100644
--- a/oauth2/oauth2-resource-server/src/test/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospectorTests.java
+++ b/oauth2/oauth2-resource-server/src/test/java/org/springframework/security/oauth2/server/resource/introspection/SpringOpaqueTokenIntrospectorTests.java
@@ -41,6 +41,7 @@ import org.springframework.http.MediaType;
 import org.springframework.http.RequestEntity;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.oauth2.core.OAuth2AuthenticatedPrincipal;
+import org.springframework.security.oauth2.core.OAuth2TokenIntrospectionClaimNames;
 import org.springframework.web.client.RestOperations;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -144,15 +145,15 @@ public class SpringOpaqueTokenIntrospectorTests {
 			// @formatter:off
 			assertThat(authority.getAttributes())
 					.isNotNull()
-					.containsEntry(OAuth2IntrospectionClaimNames.ACTIVE, true)
-					.containsEntry(OAuth2IntrospectionClaimNames.AUDIENCE,
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.ACTIVE, true)
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.AUD,
 							Arrays.asList("https://protected.example.net/resource"))
-					.containsEntry(OAuth2IntrospectionClaimNames.CLIENT_ID, "l238j323ds-23ij4")
-					.containsEntry(OAuth2IntrospectionClaimNames.EXPIRES_AT, Instant.ofEpochSecond(1419356238))
-					.containsEntry(OAuth2IntrospectionClaimNames.ISSUER, new URL("https://server.example.com/"))
-					.containsEntry(OAuth2IntrospectionClaimNames.SCOPE, Arrays.asList("read", "write", "dolphin"))
-					.containsEntry(OAuth2IntrospectionClaimNames.SUBJECT, "Z5O3upPC88QrAjx00dis")
-					.containsEntry(OAuth2IntrospectionClaimNames.USERNAME, "jdoe")
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.CLIENT_ID, "l238j323ds-23ij4")
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.EXP, Instant.ofEpochSecond(1419356238))
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.ISS, new URL("https://server.example.com/"))
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.SCOPE, Arrays.asList("read", "write", "dolphin"))
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.SUB, "Z5O3upPC88QrAjx00dis")
+					.containsEntry(OAuth2TokenIntrospectionClaimNames.USERNAME, "jdoe")
 					.containsEntry("extension_field", "twenty-seven");
 			// @formatter:on
 		}
@@ -186,9 +187,9 @@ public class SpringOpaqueTokenIntrospectorTests {
 	@Test
 	public void introspectWhenActiveTokenThenParsesValuesInResponse() {
 		Map<String, Object> introspectedValues = new HashMap<>();
-		introspectedValues.put(OAuth2IntrospectionClaimNames.ACTIVE, true);
-		introspectedValues.put(OAuth2IntrospectionClaimNames.AUDIENCE, Arrays.asList("aud"));
-		introspectedValues.put(OAuth2IntrospectionClaimNames.NOT_BEFORE, 29348723984L);
+		introspectedValues.put(OAuth2TokenIntrospectionClaimNames.ACTIVE, true);
+		introspectedValues.put(OAuth2TokenIntrospectionClaimNames.AUD, Arrays.asList("aud"));
+		introspectedValues.put(OAuth2TokenIntrospectionClaimNames.NBF, 29348723984L);
 		RestOperations restOperations = mock(RestOperations.class);
 		OpaqueTokenIntrospector introspectionClient = new SpringOpaqueTokenIntrospector(INTROSPECTION_URL,
 				restOperations);
@@ -198,11 +199,11 @@ public class SpringOpaqueTokenIntrospectorTests {
 		// @formatter:off
 		assertThat(authority.getAttributes())
 				.isNotNull()
-				.containsEntry(OAuth2IntrospectionClaimNames.ACTIVE, true)
-				.containsEntry(OAuth2IntrospectionClaimNames.AUDIENCE, Arrays.asList("aud"))
-				.containsEntry(OAuth2IntrospectionClaimNames.NOT_BEFORE, Instant.ofEpochSecond(29348723984L))
-				.doesNotContainKey(OAuth2IntrospectionClaimNames.CLIENT_ID)
-				.doesNotContainKey(OAuth2IntrospectionClaimNames.SCOPE);
+				.containsEntry(OAuth2TokenIntrospectionClaimNames.ACTIVE, true)
+				.containsEntry(OAuth2TokenIntrospectionClaimNames.AUD, Arrays.asList("aud"))
+				.containsEntry(OAuth2TokenIntrospectionClaimNames.NBF, Instant.ofEpochSecond(29348723984L))
+				.doesNotContainKey(OAuth2TokenIntrospectionClaimNames.CLIENT_ID)
+				.doesNotContainKey(OAuth2TokenIntrospectionClaimNames.SCOPE);
 		// @formatter:on
 	}