diff --git a/its/core-it-suite/pom.xml b/its/core-it-suite/pom.xml
index bd5b7f3e71..d704143acd 100644
--- a/its/core-it-suite/pom.xml
+++ b/its/core-it-suite/pom.xml
@@ -77,7 +77,6 @@ under the License.
     <proxy.user />
     <proxy.pass />
     <proxy.nonProxyHosts>localhost</proxy.nonProxyHosts>
-    <slf4jVersion>1.6.1</slf4jVersion>
     <jetty9Version>9.4.55.v20240627</jetty9Version>
 
     <stubPluginVersion>0.1-stub-SNAPSHOT</stubPluginVersion>
@@ -129,11 +128,6 @@ under the License.
       <version>${jetty9Version}</version>
     </dependency>
 
-    <dependency>
-      <groupId>com.google.guava</groupId>
-      <artifactId>guava</artifactId>
-      <version>16.0</version>
-    </dependency>
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-repository-metadata</artifactId>
@@ -597,13 +591,11 @@ under the License.
         <dependency>
           <groupId>org.slf4j</groupId>
           <artifactId>slf4j-api</artifactId>
-          <version>${slf4jVersion}</version>
           <scope>test</scope>
         </dependency>
         <dependency>
           <groupId>org.slf4j</groupId>
           <artifactId>slf4j-simple</artifactId>
-          <version>${slf4jVersion}</version>
           <scope>test</scope>
         </dependency>
       </dependencies>
diff --git a/its/core-it-suite/src/test/java/org/apache/maven/it/HttpServer.java b/its/core-it-suite/src/test/java/org/apache/maven/it/HttpServer.java
index c93ec9ff0e..085e48c50f 100644
--- a/its/core-it-suite/src/test/java/org/apache/maven/it/HttpServer.java
+++ b/its/core-it-suite/src/test/java/org/apache/maven/it/HttpServer.java
@@ -30,7 +30,6 @@ import java.io.OutputStream;
 import java.net.URL;
 import java.util.Collections;
 
-import com.google.common.io.ByteStreams;
 import org.eclipse.jetty.security.ConstraintMapping;
 import org.eclipse.jetty.security.ConstraintSecurityHandler;
 import org.eclipse.jetty.security.HashLoginService;
@@ -217,7 +216,7 @@ public class HttpServer {
             response.setStatus(HttpServletResponse.SC_OK);
             try (InputStream in = source.stream(target.substring(1));
                     OutputStream out = response.getOutputStream()) {
-                ByteStreams.copy(in, out);
+                in.transferTo(out);
             }
             baseRequest.setHandled(true);
         }
diff --git a/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6255FixConcatLines.java b/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6255FixConcatLines.java
index 02f3f882cc..9136c37690 100644
--- a/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6255FixConcatLines.java
+++ b/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6255FixConcatLines.java
@@ -19,11 +19,9 @@
 package org.apache.maven.it;
 
 import java.io.File;
+import java.nio.file.Files;
 import java.util.Properties;
 
-import com.google.common.base.Charsets;
-import com.google.common.base.Joiner;
-import com.google.common.io.Files;
 import org.apache.maven.shared.verifier.Verifier;
 import org.apache.maven.shared.verifier.util.ResourceExtractor;
 import org.junit.jupiter.api.Test;
@@ -89,7 +87,7 @@ public class MavenITmng6255FixConcatLines extends AbstractMavenIntegrationTestCa
     }
 
     protected void createJvmConfigFile(File jvmConfig, String lineEndings, String... lines) throws Exception {
-        String content = Joiner.on(lineEndings).join(lines);
-        Files.write(content, jvmConfig, Charsets.UTF_8);
+        String content = String.join(lineEndings, lines);
+        Files.writeString(jvmConfig.toPath(), content);
     }
 }
diff --git a/its/core-it-suite/src/test/resources-filtered/bootstrap.txt b/its/core-it-suite/src/test/resources-filtered/bootstrap.txt
index b2542cf9a5..372cebd860 100644
--- a/its/core-it-suite/src/test/resources-filtered/bootstrap.txt
+++ b/its/core-it-suite/src/test/resources-filtered/bootstrap.txt
@@ -78,6 +78,7 @@ org.apache.maven.plugin-tools:maven-plugin-annotations:3.3
 org.apache.maven.plugins:maven-antrun-plugin:3.0.0
 org.apache.maven.plugins:maven-antrun-plugin:3.1.0
 org.apache.maven.plugins:maven-assembly-plugin:3.1.0
+org.apache.maven.plugins:maven-assembly-plugin:3.4.0
 org.apache.maven.plugins:maven-clean-plugin:${stubPluginVersion}
 org.apache.maven.plugins:maven-clean-plugin:2.5
 org.apache.maven.plugins:maven-clean-plugin:3.1.0
diff --git a/its/core-it-support/core-it-javaagent/pom.xml b/its/core-it-support/core-it-javaagent/pom.xml
index 0a74ee5e93..85a11398f6 100644
--- a/its/core-it-support/core-it-javaagent/pom.xml
+++ b/its/core-it-support/core-it-javaagent/pom.xml
@@ -31,17 +31,17 @@ under the License.
     <dependency>
       <groupId>org.ow2.asm</groupId>
       <artifactId>asm</artifactId>
-      <version>9.7.1</version>
+      <version>${asmVersion}</version>
     </dependency>
     <dependency>
       <groupId>org.ow2.asm</groupId>
       <artifactId>asm-commons</artifactId>
-      <version>7.3.1</version>
+      <version>${asmVersion}</version>
     </dependency>
     <dependency>
       <groupId>org.ow2.asm</groupId>
       <artifactId>asm-util</artifactId>
-      <version>7.3.1</version>
+      <version>${asmVersion}</version>
     </dependency>
   </dependencies>
 
@@ -62,7 +62,6 @@ under the License.
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
-        <version>3.4.1</version>
         <executions>
           <execution>
             <goals>
diff --git a/its/core-it-support/core-it-support-artifacts/pom.xml b/its/core-it-support/core-it-support-artifacts/pom.xml
index ac26ab88fb..26b35abc84 100644
--- a/its/core-it-support/core-it-support-artifacts/pom.xml
+++ b/its/core-it-support/core-it-support-artifacts/pom.xml
@@ -35,7 +35,6 @@ under the License.
     <plugins>
       <plugin>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>3.4.0</version>
         <configuration>
           <descriptors>
             <descriptor>src/main/assembly/repo.xml</descriptor>
diff --git a/its/pom.xml b/its/pom.xml
index 6c0118be10..9068953447 100644
--- a/its/pom.xml
+++ b/its/pom.xml
@@ -153,7 +153,6 @@ under the License.
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>3.0.0-M9</version>
           <configuration>
             <environmentVariables>
               <JENKINS_MAVEN_AGENT_DISABLED>true</JENKINS_MAVEN_AGENT_DISABLED>
@@ -207,11 +206,6 @@ under the License.
             </lifecycleMappingMetadata>
           </configuration>
         </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-resources-plugin</artifactId>
-          <version>3.2.0</version>
-        </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-plugin-plugin</artifactId>