diff --git a/api/pom.xml b/api/pom.xml
index fac58aa6e..27fa55273 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -50,4 +50,4 @@
         </plugins>
     </build>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/api/src/main/java9/module-info.java b/api/src/main/java9/module-info.java
new file mode 100644
index 000000000..266df2845
--- /dev/null
+++ b/api/src/main/java9/module-info.java
@@ -0,0 +1,6 @@
+module io.jsonwebtoken.jjwt.api {
+    exports io.jsonwebtoken;
+    exports io.jsonwebtoken.io;
+    exports io.jsonwebtoken.lang;
+    exports io.jsonwebtoken.security;
+}
diff --git a/extensions/gson/pom.xml b/extensions/gson/pom.xml
index 35e458e27..2d06c99ea 100644
--- a/extensions/gson/pom.xml
+++ b/extensions/gson/pom.xml
@@ -53,4 +53,4 @@
         </plugins>
     </build>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/extensions/gson/src/main/java9/module-info.java b/extensions/gson/src/main/java9/module-info.java
new file mode 100644
index 000000000..158678acb
--- /dev/null
+++ b/extensions/gson/src/main/java9/module-info.java
@@ -0,0 +1,11 @@
+module io.jsonwebtoken.jjwt.ext.gson {
+    requires transitive com.google.gson;
+    requires io.jsonwebtoken.jjwt.api;
+
+    exports io.jsonwebtoken.gson.io;
+
+    provides io.jsonwebtoken.io.Deserializer with
+            io.jsonwebtoken.gson.io.GsonDeserializer;
+    provides io.jsonwebtoken.io.Serializer with
+            io.jsonwebtoken.gson.io.GsonSerializer;
+}
diff --git a/extensions/jackson/pom.xml b/extensions/jackson/pom.xml
index 469789f61..6f00d32c2 100644
--- a/extensions/jackson/pom.xml
+++ b/extensions/jackson/pom.xml
@@ -69,4 +69,5 @@
             </plugin>
         </plugins>
     </build>
-</project>
\ No newline at end of file
+
+</project>
diff --git a/extensions/jackson/src/main/java9/module-info.java b/extensions/jackson/src/main/java9/module-info.java
new file mode 100644
index 000000000..ae4b8870e
--- /dev/null
+++ b/extensions/jackson/src/main/java9/module-info.java
@@ -0,0 +1,13 @@
+module io.jsonwebtoken.jjwt.ext.jackson {
+    requires transitive com.fasterxml.jackson.core;
+    requires transitive com.fasterxml.jackson.databind;
+    requires io.jsonwebtoken.jjwt.api;
+
+    exports io.jsonwebtoken.jackson.io;
+
+    provides io.jsonwebtoken.io.Deserializer with
+            io.jsonwebtoken.jackson.io.JacksonDeserializer;
+    provides io.jsonwebtoken.io.Serializer with
+            io.jsonwebtoken.jackson.io.JacksonSerializer;
+
+}
diff --git a/extensions/orgjson/pom.xml b/extensions/orgjson/pom.xml
index 5d9da307f..acd666844 100644
--- a/extensions/orgjson/pom.xml
+++ b/extensions/orgjson/pom.xml
@@ -69,4 +69,5 @@
             </plugin>
         </plugins>
     </build>
-</project>
\ No newline at end of file
+
+</project>
diff --git a/extensions/orgjson/src/main/java9/module-info.java b/extensions/orgjson/src/main/java9/module-info.java
new file mode 100644
index 000000000..7f38196bb
--- /dev/null
+++ b/extensions/orgjson/src/main/java9/module-info.java
@@ -0,0 +1,9 @@
+module io.jsonwebtoken.jjwt.ext.orgjson {
+    requires transitive org.json;
+    requires io.jsonwebtoken.jjwt.api;
+
+    exports io.jsonwebtoken.orgjson.io;
+
+    provides io.jsonwebtoken.io.Deserializer with io.jsonwebtoken.orgjson.io.OrgJsonDeserializer;
+    provides io.jsonwebtoken.io.Serializer with io.jsonwebtoken.orgjson.io.OrgJsonSerializer;
+}
diff --git a/impl/pom.xml b/impl/pom.xml
index 4d10f5581..24f50b3dc 100644
--- a/impl/pom.xml
+++ b/impl/pom.xml
@@ -68,4 +68,4 @@
         </dependency>
     </dependencies>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/impl/src/main/java9/module-info.java b/impl/src/main/java9/module-info.java
new file mode 100644
index 000000000..7d0e57c26
--- /dev/null
+++ b/impl/src/main/java9/module-info.java
@@ -0,0 +1,15 @@
+module io.jsonwebtoken.jjwt.impl {
+    requires io.jsonwebtoken.jjwt.api;
+
+    exports io.jsonwebtoken.impl;
+    exports io.jsonwebtoken.impl.compression;
+    exports io.jsonwebtoken.impl.lang;
+
+    provides io.jsonwebtoken.CompressionCodec with
+            io.jsonwebtoken.impl.compression.DeflateCompressionAlgorithm,
+            io.jsonwebtoken.impl.compression.GzipCompressionAlgorithm;
+
+    uses io.jsonwebtoken.CompressionCodec;
+    uses io.jsonwebtoken.io.Deserializer;
+    uses io.jsonwebtoken.io.Serializer;
+}
diff --git a/integration-tests/pom.xml b/integration-tests/pom.xml
new file mode 100644
index 000000000..b98a01f9e
--- /dev/null
+++ b/integration-tests/pom.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>io.jsonwebtoken</groupId>
+        <artifactId>jjwt-root</artifactId>
+        <version>0.12.7-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>jjwt-integration-tests</artifactId>
+    <name>JJWT :: Integration-Tests</name>
+    <packaging>pom</packaging>
+
+    <properties>
+        <maven.deploy.skip>true</maven.deploy.skip>
+    </properties>
+
+    <modules>
+        <module>unsigned-jackson</module>
+    </modules>
+    
+</project>
diff --git a/integration-tests/unsigned-jackson/pom.xml b/integration-tests/unsigned-jackson/pom.xml
new file mode 100644
index 000000000..52d398d85
--- /dev/null
+++ b/integration-tests/unsigned-jackson/pom.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>io.jsonwebtoken</groupId>
+        <artifactId>jjwt-integration-tests</artifactId>
+        <version>0.12.7-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>jjwt-integration-tests-unsigned-jackson</artifactId>
+    <name>JJWT :: Integration-Tests :: unsigned-jackson</name>
+    <description>Create and parse an unsigned JWT using Jackson and JPMS.</description>
+    <packaging>jar</packaging>
+
+    <properties>
+        <maven.compiler.release>9</maven.compiler.release>
+        <maven.deploy.skip>true</maven.deploy.skip>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-api</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-impl</artifactId>
+            <version>${project.version}</version>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-jackson</artifactId>
+            <version>${project.version}</version>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <configuration>
+                    <skip>true</skip>
+                    <detectJavaApiLink>false</detectJavaApiLink>
+                </configuration>
+            </plugin>
+            <!--
+                this plugin needs to be disabled as long as we are stuck with plugin version 3.3.0, as it cannot
+                handle Java 9 module-info.class files.
+                This will also use an empty MANIFEST.MF file, since there is no way in maven to unsetting
+                an entry (like archive/manifestFile for the jar plugin).
+            -->
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>bundle-manifest</id>
+                        <phase>none</phase>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+    
+</project>
diff --git a/integration-tests/unsigned-jackson/src/main/java/io/jsonwebtoken/it/unsigned/UnsignedJwtCreator.java b/integration-tests/unsigned-jackson/src/main/java/io/jsonwebtoken/it/unsigned/UnsignedJwtCreator.java
new file mode 100644
index 000000000..85baa25f5
--- /dev/null
+++ b/integration-tests/unsigned-jackson/src/main/java/io/jsonwebtoken/it/unsigned/UnsignedJwtCreator.java
@@ -0,0 +1,33 @@
+package io.jsonwebtoken.it.unsigned;
+
+import io.jsonwebtoken.*;
+
+import java.time.Instant;
+import java.util.Date;
+import java.util.List;
+
+public class UnsignedJwtCreator {
+
+    public UnsignedJwtCreator() {
+        // explicit
+    }
+
+    public String create() {
+        return Jwts.builder()
+                .claim("roles", List.of("admin"))
+                .subject("jjwt")
+                .id("jjwt-0")
+                .issuedAt(Date.from(Instant.now()))
+                .notBefore(Date.from(Instant.now()))
+                .compact();
+    }
+
+    public Jwt<Header, Claims> read(String jwt) {
+        final JwtParser jwtParser = Jwts.parser()
+                .unsecured()
+                .requireSubject("jjwt")
+                .build();
+
+        return jwtParser.parseUnsecuredClaims(jwt);
+    }
+}
diff --git a/integration-tests/unsigned-jackson/src/main/java/module-info.java b/integration-tests/unsigned-jackson/src/main/java/module-info.java
new file mode 100644
index 000000000..71d5b72a0
--- /dev/null
+++ b/integration-tests/unsigned-jackson/src/main/java/module-info.java
@@ -0,0 +1,4 @@
+module io.jsonwebtoken.jjwt.it.unsigned {
+    requires io.jsonwebtoken.jjwt.api;
+
+}
diff --git a/integration-tests/unsigned-jackson/src/main/resources/META-INF/MANIFEST.MF b/integration-tests/unsigned-jackson/src/main/resources/META-INF/MANIFEST.MF
new file mode 100644
index 000000000..e69de29bb
diff --git a/integration-tests/unsigned-jackson/src/test/java/io/jsonwebtoken/it/unsigned/UnsignedJwtCreatorTest.java b/integration-tests/unsigned-jackson/src/test/java/io/jsonwebtoken/it/unsigned/UnsignedJwtCreatorTest.java
new file mode 100644
index 000000000..4f56cec39
--- /dev/null
+++ b/integration-tests/unsigned-jackson/src/test/java/io/jsonwebtoken/it/unsigned/UnsignedJwtCreatorTest.java
@@ -0,0 +1,32 @@
+package io.jsonwebtoken.it.unsigned;
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Header;
+import io.jsonwebtoken.Jws;
+import io.jsonwebtoken.Jwt;
+import org.junit.Test;
+
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+
+public class UnsignedJwtCreatorTest {
+
+    @Test
+    public void testUnsignedJwt() {
+        // given:
+        final UnsignedJwtCreator jwtCreator = new UnsignedJwtCreator();
+        final String jwtString = jwtCreator.create();
+
+        // when
+        final Jwt<Header, Claims> readBackJws = jwtCreator.read(jwtString);
+
+        // then
+        final Claims jwtBody = readBackJws.getPayload();
+        assertEquals("jjwt-0", jwtBody.getId());
+        assertEquals("jjwt", jwtBody.getSubject());
+        assertTrue(jwtBody.get("roles", List.class).contains("admin"));
+    }
+
+}
diff --git a/pom.xml b/pom.xml
index 9827e61e6..74f37aa07 100644
--- a/pom.xml
+++ b/pom.xml
@@ -555,8 +555,6 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>${maven.compiler.version}</version>
                 <configuration>
-                    <source>${jdk.version}</source>
-                    <target>${jdk.version}</target>
                     <encoding>${project.build.sourceEncoding}</encoding>
                 </configuration>
             </plugin>
@@ -689,6 +687,8 @@
                 <jdk>[1.8,)</jdk>
             </activation>
             <properties>
+                <maven.compiler.source>${jdk.version}</maven.compiler.source>
+                <maven.compiler.target>${jdk.version}</maven.compiler.target>
                 <gmavenplus.version>3.0.2</gmavenplus.version>
                 <groovy.version>3.0.19</groovy.version>
                 <easymock.version>4.2</easymock.version>
@@ -733,7 +733,32 @@
                 <surefire.useModulePath>false</surefire.useModulePath>
                 <maven.javadoc.additionalOptions>-html5</maven.javadoc.additionalOptions>
                 <surefire.argLine>${test.addOpens}, --illegal-access=debug</surefire.argLine>
+                <maven.compiler.release>${jdk.version}</maven.compiler.release>
             </properties>
+            <modules>
+                <module>integration-tests</module>
+            </modules>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-compiler-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <id>compile-module-info</id>
+                                <phase>compile</phase>
+                                <goals>
+                                    <goal>compile</goal>
+                                </goals>
+                                <configuration>
+                                    <release>9</release>
+                                    <compileSourceRoots>${project.basedir}/src/main/java9</compileSourceRoots>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
         </profile>
         <profile>
             <id>jdk17AndLater</id>