diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 40bebb87a8..63c09554ba 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -33,7 +33,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up JDK
-        uses: actions/setup-java@v2.1.0
+        uses: actions/setup-java@v2
         with:
           java-version: 8
           distribution: adopt-hotspot
@@ -42,7 +42,7 @@ jobs:
         run: mvn apache-rat:check "-Drat.consoleOutput"
 
       - name: Build with Maven
-        run: mvn verify --errors --batch-mode --no-transfer-progress -Pdocs
+        run: mvn verify --show-version --errors --batch-mode --no-transfer-progress -Pdocs
 
   build-all:
     needs: build
@@ -65,12 +65,12 @@ jobs:
             dist: adopt-openj9
           - version: 11
             dist: zulu
-          # 16
-          - version: 16
-            dist: adopt-hotspot
+          # 17 (16 fallback)
+          - version: 17
+            dist: temurin
           - version: 16
             dist: adopt-openj9
-          - version: 16
+          - version: 17
             dist: zulu
         exclude:
           # was already built
@@ -83,7 +83,7 @@ jobs:
           - os: macOS-latest
             java:
               version: 16
-          # exclude adopt-hotspot on MacOS. zulu (also hotspot) and OpenJ9 are sufficient.
+          # exclude temurin on MacOS. zulu (also hotspot) and OpenJ9 are sufficient.
           - os: macOS-latest
             java:
               dist: adopt-hotspot
@@ -107,10 +107,10 @@ jobs:
             maven-${{ matrix.os }}-
 
       - name: Set up JDK
-        uses: actions/setup-java@v2.1.0
+        uses: actions/setup-java@v2
         with:
           java-version: ${{ matrix.java.version }}
           distribution: ${{ matrix.java.dist }}
 
       - name: Build with Maven
-        run: mvn verify --errors --batch-mode --no-transfer-progress -Pdocs
+        run: mvn verify --show-version --errors --batch-mode --no-transfer-progress -Pdocs
diff --git a/.jenkins.groovy b/.jenkins.groovy
index 769baeec6e..b60cc61f27 100644
--- a/.jenkins.groovy
+++ b/.jenkins.groovy
@@ -93,7 +93,7 @@ pipeline {
                     stage('Build') {
                         steps {
                             echo 'Building'
-                            sh 'mvn --update-snapshots --batch-mode --errors clean verify -Pdocs -Dmaven.test.failure.ignore=true'
+                            sh 'mvn clean verify --show-version --errors --batch-mode --no-transfer-progress -Pdocs -Dmaven.test.failure.ignore=true'
                         }
                         post {
                             always {
diff --git a/integration-tests/guice3/pom.xml b/integration-tests/guice3/pom.xml
index e335cbb6e2..29d62a6c60 100644
--- a/integration-tests/guice3/pom.xml
+++ b/integration-tests/guice3/pom.xml
@@ -135,5 +135,16 @@
 				<failsafe.argLine>--illegal-access=permit</failsafe.argLine>
 			</properties>
 		</profile>
+		<profile>
+			<id>jdk17</id>
+			<activation>
+				<jdk>[17,)</jdk>
+			</activation>
+			<properties>
+				<!-- needed by guice until it is compatible with jdk17+. -->
+				<surefire.argLine>--add-opens java.base/java.lang=ALL-UNNAMED</surefire.argLine>
+				<failsafe.argLine>--add-opens java.base/java.lang=ALL-UNNAMED</failsafe.argLine>
+			</properties>
+		</profile>
 	</profiles>
 </project>
diff --git a/integration-tests/guice4/pom.xml b/integration-tests/guice4/pom.xml
index 0e5af10062..4d4c3b0ebe 100644
--- a/integration-tests/guice4/pom.xml
+++ b/integration-tests/guice4/pom.xml
@@ -140,5 +140,16 @@
 				<failsafe.argLine>--illegal-access=permit</failsafe.argLine>
 			</properties>
 		</profile>
+		<profile>
+			<id>jdk17</id>
+			<activation>
+				<jdk>[17,)</jdk>
+			</activation>
+			<properties>
+				<!-- needed by guice until it is compatible with jdk17+. -->
+				<surefire.argLine>--add-opens java.base/java.lang=ALL-UNNAMED</surefire.argLine>
+				<failsafe.argLine>--add-opens java.base/java.lang=ALL-UNNAMED</failsafe.argLine>
+			</properties>
+		</profile>
 	</profiles>
 </project>
diff --git a/pom.xml b/pom.xml
index 2011d5a573..61204c9f2f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -109,17 +109,17 @@
         <log4j.version>1.2.17</log4j.version>
         <spring.version>5.2.8.RELEASE</spring.version>
         <spring-boot.version>2.3.2.RELEASE</spring-boot.version>
-        <guice.version>4.2.2</guice.version>
+        <guice.version>4.2.3</guice.version>
         <jaxrs.api.version>2.1.6</jaxrs.api.version>
         <htmlunit.version>2.39.0</htmlunit.version>
         <bouncycastle.version>1.68</bouncycastle.version>
 
         <!-- Test 3rd-party dependencies: -->
         <easymock.version>4.0.2</easymock.version>
-        <mockito.version>3.7.0</mockito.version>
-        <gmaven.version>1.12.0</gmaven.version>
-        <groovy.version>3.0.7</groovy.version>
-        <junit.version>5.6.2</junit.version>
+        <mockito.version>3.12.4</mockito.version>
+        <gmaven.version>1.13.0</gmaven.version>
+        <groovy.version>3.0.9</groovy.version>
+        <junit.version>5.8.1</junit.version>
         <junit.server.jetty.version>0.11.0</junit.server.jetty.version>
         <hibernate.version>5.4.3.Final</hibernate.version>
         <taglibs.standard.version>1.2.5</taglibs.standard.version>
@@ -334,7 +334,7 @@
                 <plugin>
                     <groupId>org.jacoco</groupId>
                     <artifactId>jacoco-maven-plugin</artifactId>
-                    <version>0.8.6</version>
+                    <version>0.8.7</version>
                 </plugin>
                 <plugin>
                     <groupId>com.mycila</groupId>
diff --git a/samples/guice/pom.xml b/samples/guice/pom.xml
index f1bcaeb0ff..50afb36a60 100644
--- a/samples/guice/pom.xml
+++ b/samples/guice/pom.xml
@@ -125,5 +125,16 @@
 				<failsafe.argLine>--illegal-access=permit</failsafe.argLine>
 			</properties>
 		</profile>
+		<profile>
+			<id>jdk17</id>
+			<activation>
+				<jdk>[17,)</jdk>
+			</activation>
+			<properties>
+				<!-- needed by guice until it is compatible with jdk17+. -->
+				<surefire.argLine>--add-opens java.base/java.lang=ALL-UNNAMED</surefire.argLine>
+				<failsafe.argLine>--add-opens java.base/java.lang=ALL-UNNAMED</failsafe.argLine>
+			</properties>
+		</profile>
 	</profiles>
 </project>
diff --git a/support/guice/pom.xml b/support/guice/pom.xml
index 26d332c542..7c76e2b55d 100644
--- a/support/guice/pom.xml
+++ b/support/guice/pom.xml
@@ -128,12 +128,22 @@
         <profile>
             <id>jdk16</id>
             <activation>
-                <jdk>[16,)</jdk>
+                <jdk>[16,17)</jdk>
             </activation>
             <properties>
                 <!-- needed by guice until it is compatible with jdk16+. -->
                 <surefire.argLine>--illegal-access=permit</surefire.argLine>
             </properties>
         </profile>
+        <profile>
+            <id>jdk17</id>
+            <activation>
+                <jdk>[17,)</jdk>
+            </activation>
+            <properties>
+                <!-- needed by guice until it is compatible with jdk17+. -->
+                <surefire.argLine>--add-opens java.base/java.lang=ALL-UNNAMED</surefire.argLine>
+            </properties>
+        </profile>
     </profiles>
 </project>