diff --git a/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/context/properties/ConfigurationPropertiesReportEndpointWebIntegrationTests.java b/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/context/properties/ConfigurationPropertiesReportEndpointWebIntegrationTests.java
index 606dc5e9e21..2e47a696eba 100644
--- a/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/context/properties/ConfigurationPropertiesReportEndpointWebIntegrationTests.java
+++ b/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/context/properties/ConfigurationPropertiesReportEndpointWebIntegrationTests.java
@@ -17,6 +17,7 @@
 package org.springframework.boot.actuate.context.properties;
 
 import java.util.Collections;
+import java.util.List;
 
 import org.junit.jupiter.api.BeforeEach;
 
@@ -30,8 +31,7 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.test.web.reactive.server.WebTestClient;
 
-import static org.hamcrest.Matchers.greaterThanOrEqualTo;
-import static org.hamcrest.Matchers.hasSize;
+import static org.assertj.core.api.Assertions.assertThat;
 
 /**
  * Integration tests for {@link ConfigurationPropertiesReportEndpoint} exposed by Jersey,
@@ -50,6 +50,7 @@ class ConfigurationPropertiesReportEndpointWebIntegrationTests {
 	}
 
 	@WebEndpointTest
+	@SuppressWarnings("unchecked")
 	void noFilters() {
 		this.client.get()
 			.uri("/actuator/configprops")
@@ -58,7 +59,7 @@ class ConfigurationPropertiesReportEndpointWebIntegrationTests {
 			.isOk()
 			.expectBody()
 			.jsonPath("$..beans[*]")
-			.value(hasSize(greaterThanOrEqualTo(2)))
+			.value(List.class, (beans) -> assertThat(beans).hasSizeGreaterThanOrEqualTo(2))
 			.jsonPath("$..beans['fooDotCom']")
 			.exists()
 			.jsonPath("$..beans['barDotCom']")
@@ -66,6 +67,7 @@ class ConfigurationPropertiesReportEndpointWebIntegrationTests {
 	}
 
 	@WebEndpointTest
+	@SuppressWarnings("unchecked")
 	void filterByExactPrefix() {
 		this.client.get()
 			.uri("/actuator/configprops/com.foo")
@@ -74,12 +76,13 @@ class ConfigurationPropertiesReportEndpointWebIntegrationTests {
 			.isOk()
 			.expectBody()
 			.jsonPath("$..beans[*]")
-			.value(hasSize(1))
+			.value(List.class, (beans) -> assertThat(beans).hasSize(1))
 			.jsonPath("$..beans['fooDotCom']")
 			.exists();
 	}
 
 	@WebEndpointTest
+	@SuppressWarnings("unchecked")
 	void filterByGeneralPrefix() {
 		this.client.get()
 			.uri("/actuator/configprops/com.")
@@ -88,7 +91,7 @@ class ConfigurationPropertiesReportEndpointWebIntegrationTests {
 			.isOk()
 			.expectBody()
 			.jsonPath("$..beans[*]")
-			.value(hasSize(2))
+			.value(List.class, (beans) -> assertThat(beans).hasSize(2))
 			.jsonPath("$..beans['fooDotCom']")
 			.exists()
 			.jsonPath("$..beans['barDotCom']")
diff --git a/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/logging/LoggersEndpointWebIntegrationTests.java b/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/logging/LoggersEndpointWebIntegrationTests.java
index 42c03924dbb..107b0fbf2fd 100644
--- a/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/logging/LoggersEndpointWebIntegrationTests.java
+++ b/integration-test/spring-boot-actuator-integration-tests/src/test/java/org/springframework/boot/actuate/logging/LoggersEndpointWebIntegrationTests.java
@@ -24,7 +24,6 @@ import java.util.List;
 import java.util.Map;
 
 import net.minidev.json.JSONArray;
-import org.hamcrest.collection.IsIterableContainingInAnyOrder;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.mockito.Mockito;
@@ -39,9 +38,11 @@ import org.springframework.boot.logging.LoggingSystem;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.http.MediaType;
 import org.springframework.test.web.reactive.server.WebTestClient;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.BDDMockito.then;
 import static org.mockito.Mockito.mock;
@@ -64,6 +65,9 @@ class LoggersEndpointWebIntegrationTests {
 
 	private static final String V3_JSON = ApiVersion.V3.getProducedMimeType().toString();
 
+	private static final ParameterizedTypeReference<List<String>> STRING_LIST = new ParameterizedTypeReference<>() {
+	};
+
 	private WebTestClient client;
 
 	private LoggingSystem loggingSystem;
@@ -134,6 +138,7 @@ class LoggersEndpointWebIntegrationTests {
 	}
 
 	@WebEndpointTest
+	@SuppressWarnings("unchecked")
 	void getLoggerGroupShouldReturnConfiguredLogLevelAndMembers() {
 		setLogLevelToDebug("test");
 		this.client.get()
@@ -145,7 +150,8 @@ class LoggersEndpointWebIntegrationTests {
 			.jsonPath("$.length()")
 			.isEqualTo(2)
 			.jsonPath("members")
-			.value(IsIterableContainingInAnyOrder.containsInAnyOrder("test.member1", "test.member2"))
+			.value(STRING_LIST,
+					(members) -> assertThat(members).containsExactlyInAnyOrder("test.member1", "test.member2"))
 			.jsonPath("configuredLevel")
 			.isEqualTo("DEBUG");
 	}
@@ -293,6 +299,7 @@ class LoggersEndpointWebIntegrationTests {
 	}
 
 	@WebEndpointTest
+	@SuppressWarnings("unchecked")
 	void logLevelForLoggerGroupWithNameThatCouldBeMistakenForAPathExtension() {
 		setLogLevelToDebug("group.png");
 		this.client.get()
@@ -306,7 +313,8 @@ class LoggersEndpointWebIntegrationTests {
 			.jsonPath("configuredLevel")
 			.isEqualTo("DEBUG")
 			.jsonPath("members")
-			.value(IsIterableContainingInAnyOrder.containsInAnyOrder("png.member1", "png.member2"));
+			.value(STRING_LIST,
+					(members) -> assertThat(members).containsExactlyInAnyOrder("png.member1", "png.member2"));
 	}
 
 	private void setLogLevelToDebug(String name) {
diff --git a/module/spring-boot-graphql/src/test/java/org/springframework/boot/graphql/autoconfigure/reactive/GraphQlWebFluxAutoConfigurationTests.java b/module/spring-boot-graphql/src/test/java/org/springframework/boot/graphql/autoconfigure/reactive/GraphQlWebFluxAutoConfigurationTests.java
index f29a9eb2ca0..f405e8755a5 100644
--- a/module/spring-boot-graphql/src/test/java/org/springframework/boot/graphql/autoconfigure/reactive/GraphQlWebFluxAutoConfigurationTests.java
+++ b/module/spring-boot-graphql/src/test/java/org/springframework/boot/graphql/autoconfigure/reactive/GraphQlWebFluxAutoConfigurationTests.java
@@ -22,6 +22,7 @@ import java.util.Map;
 import java.util.function.Consumer;
 
 import graphql.schema.idl.TypeRuntimeWiring;
+import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.Test;
 import reactor.core.publisher.Mono;
 
@@ -53,7 +54,6 @@ import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.web.reactive.function.server.RouterFunction;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.hamcrest.Matchers.containsString;
 
 /**
  * Tests for {@link GraphQlWebFluxAutoConfiguration}
@@ -209,7 +209,7 @@ class GraphQlWebFluxAutoConfigurationTests {
 			.expectHeader()
 			.contentType(MediaType.TEXT_PLAIN)
 			.expectBody(String.class)
-			.value(containsString("type Book")));
+			.value((Consumer<@Nullable String>) (body) -> assertThat(body).contains("type Book")));
 	}
 
 	@Test