Add Equals and HashCode methods for better comparison.

oauth2/oauth2-core/src/main/java/org/springframework/security/oauth2/core/endpoint/OAuth2AuthorizationRequest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 import java.util.function.Consumer;
 import java.util.function.Function;
@@ -188,6 +189,35 @@ public static Builder authorizationCode() {
 		return new Builder(AuthorizationGrantType.AUTHORIZATION_CODE);
 	}
 
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj) {
+			return true;
+		}
+		if (obj == null || this.getClass() != obj.getClass()) {
+			return false;
+		}
+		OAuth2AuthorizationRequest that = (OAuth2AuthorizationRequest) obj;
+
+		return Objects.equals(this.authorizationUri, that.authorizationUri)
+				&& Objects.equals(this.authorizationGrantType, that.authorizationGrantType)
+				&& Objects.equals(this.responseType, that.responseType) && Objects.equals(this.clientId, that.clientId)
+				&& Objects.equals(this.redirectUri, that.redirectUri) && Objects.equals(this.scopes, that.scopes)
+				&& Objects.equals(this.state, that.state)
+				&& Objects.equals(this.additionalParameters, that.additionalParameters)
+				&& Objects.equals(this.authorizationRequestUri, that.authorizationRequestUri)
+				&& Objects.equals(this.attributes, that.attributes);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hashCode(this.authorizationUri) + Objects.hashCode(this.clientId)
+				+ Objects.hashCode(this.authorizationGrantType) + Objects.hashCode(this.responseType)
+				+ Objects.hashCode(this.redirectUri) + Objects.hashCode(this.scopes) + Objects.hashCode(this.state)
+				+ Objects.hashCode(this.additionalParameters) + Objects.hashCode(this.authorizationRequestUri)
+				+ Objects.hashCode(this.attributes);
+	}
+
 	/**
 	 * Returns a new {@link Builder}, initialized with the values from the provided
 	 * {@code authorizationRequest}.

oauth2/oauth2-core/src/test/java/org/springframework/security/oauth2/core/endpoint/OAuth2AuthorizationRequestTests.java

@@ -18,6 +18,7 @@
 
 import java.net.URI;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
@@ -28,8 +29,7 @@
 
 import org.springframework.security.oauth2.core.AuthorizationGrantType;
 
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
+import static org.assertj.core.api.Assertions.*;
 
 /**
  * Tests for {@link OAuth2AuthorizationRequest}.
@@ -365,4 +365,49 @@ public void buildWhenAdditionalParametersContainsNullThenAuthorizationRequestUri
 					+ "item1=null&item2=value2");
 	}
 
+	@Test
+	public void equalsTrueTest() {
+		OAuth2AuthorizationRequest authorizationRequest1 = TestOAuth2AuthorizationRequests.request()
+			.authorizationRequestUri("https://example.com")
+			.additionalParameters(
+					Collections.singletonMap("someAdditionalParameterKey", "someAdditionalParameterValue"))
+			.parameters((parametersMap) -> parametersMap.put("someParameterKey", "someParameterValue"))
+			.scope("someScope")
+			.build();
+
+		OAuth2AuthorizationRequest authorizationRequest2 = TestOAuth2AuthorizationRequests.request()
+			.authorizationRequestUri("https://example.com")
+			.additionalParameters(
+					Collections.singletonMap("someAdditionalParameterKey", "someAdditionalParameterValue"))
+			.parameters((parametersMap) -> parametersMap.put("someParameterKey", "someParameterValue"))
+			.scope("someScope")
+			.build();
+
+		assertThat(authorizationRequest1).isEqualTo(authorizationRequest2);
+	}
+
+	@Test
+	public void hashCodeTest() {
+		OAuth2AuthorizationRequest authorizationRequest1 = TestOAuth2AuthorizationRequests.request()
+			.authorizationRequestUri("https://example.com")
+			.additionalParameters(
+					Collections.singletonMap("someAdditionalParameterKey", "someAdditionalParameterValue"))
+			.parameters((parametersMap) -> parametersMap.put("someParameterKey", "someParameterValue"))
+			.scope("someScope")
+			.build();
+
+		OAuth2AuthorizationRequest authorizationRequest2 = TestOAuth2AuthorizationRequests.request()
+			.authorizationRequestUri("https://example.com")
+			.additionalParameters(
+					Collections.singletonMap("someAdditionalParameterKey", "someAdditionalParameterValue"))
+			.parameters((parametersMap) -> parametersMap.put("someParameterKey", "someParameterValue"))
+			.scope("someScope")
+			.build();
+
+		int authorizationRequest1HashCode = authorizationRequest1.hashCode();
+		int authorizationRequest2HashCode = authorizationRequest2.hashCode();
+
+		assertThat(authorizationRequest1HashCode).isEqualTo(authorizationRequest2HashCode);
+	}
+
 }