Remove quava dependency

hawkbit-extension-artifact-repository-azure/pom.xml

@@ -69,10 +69,6 @@
          <artifactId>hawkbit-core</artifactId>
          <scope>provided</scope>
       </dependency>
-      <dependency>
-         <groupId>com.google.guava</groupId>
-         <artifactId>guava</artifactId>
-      </dependency>
       <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>

hawkbit-extension-artifact-repository-gcs/pom.xml

@@ -27,10 +27,6 @@
             <artifactId>hawkbit-core</artifactId>
             <scope>provided</scope>
         </dependency>
-        <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>

hawkbit-extension-artifact-repository-gcs/src/main/java/org/eclipse/hawkbit/artifact/repository/GcsRepository.java

@@ -14,6 +14,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Base64;
+import java.util.HexFormat;
 
 import org.apache.commons.io.IOUtils;
 import org.eclipse.hawkbit.artifact.repository.model.AbstractDbArtifact;
@@ -27,7 +28,6 @@
 import com.google.cloud.storage.BlobId;
 import com.google.cloud.storage.BlobInfo;
 import com.google.cloud.storage.Storage;
-import com.google.common.io.BaseEncoding;
 
 /**
  * An {@link ArtifactRepository} implementation for the Gcloud GCS service. All
@@ -113,7 +113,7 @@ public AbstractDbArtifact getArtifactBySha1(final String tenant, final String sh
         // the MD5Content is stored in the ETag
         return new GcsArtifact(gcsStorage, gcsProperties, key, sha1Hash,
                 new DbArtifactHash(sha1Hash,
-                        BaseEncoding.base16().lowerCase().encode(Base64.getDecoder().decode(blob.getMd5())), null),
+                        HexFormat.of().withLowerCase().formatHex(Base64.getDecoder().decode(blob.getMd5())), null),
                 blob.getSize(), blob.getContentType());
 
     }

hawkbit-extension-artifact-repository-mongo/pom.xml

@@ -43,10 +43,6 @@
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-actuator-autoconfigure</artifactId>
       </dependency>
-      <dependency>
-         <groupId>com.google.guava</groupId>
-         <artifactId>guava</artifactId>
-      </dependency>
 
       <!-- TEST -->
       <dependency>

hawkbit-extension-artifact-repository-mongo/src/test/java/org/eclipse/hawkbit/artifact/repository/MongoDBArtifactStoreTest.java

@@ -17,6 +17,7 @@
 import java.security.DigestInputStream;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
+import java.util.HexFormat;
 import java.util.Random;
 
 import io.qameta.allure.Description;
@@ -27,8 +28,6 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 
-import com.google.common.io.BaseEncoding;
-
 import io.qameta.allure.Feature;
 import io.qameta.allure.Step;
 import io.qameta.allure.Story;
@@ -90,9 +89,10 @@ public void storeSameArtifactMultipleTimes() throws NoSuchAlgorithmException, IO
         final MessageDigest mdSHA1 = MessageDigest.getInstance("SHA1");
         final MessageDigest mdSHA256 = MessageDigest.getInstance("SHA-256");
         final MessageDigest mdMD5 = MessageDigest.getInstance("MD5");
-        final DbArtifactHash hash = new DbArtifactHash(BaseEncoding.base16().lowerCase().encode(mdSHA1.digest(bytes)),
-                BaseEncoding.base16().lowerCase().encode(mdMD5.digest(bytes)),
-                BaseEncoding.base16().lowerCase().encode(mdSHA256.digest(bytes)));
+        final HexFormat hexFormat = HexFormat.of().withLowerCase();
+        final DbArtifactHash hash = new DbArtifactHash(hexFormat.formatHex(mdSHA1.digest(bytes)),
+                hexFormat.formatHex(mdMD5.digest(bytes)),
+                hexFormat.formatHex(mdSHA256.digest(bytes)));
 
         final AbstractDbArtifact artifact1 = storeArtifact(TENANT, "file1.txt", new ByteArrayInputStream(bytes), mdSHA1,
                 mdMD5, hash);
@@ -111,8 +111,9 @@ private String storeRandomArtifactAndVerify(final String tenant) throws NoSuchAl
 
         storeArtifact(tenant, filename, generateInputStream(filelengthBytes), mdSHA1, mdMD5, null);
 
-        final String sha1Hash16 = BaseEncoding.base16().lowerCase().encode(mdSHA1.digest());
-        final String md5Hash16 = BaseEncoding.base16().lowerCase().encode(mdMD5.digest());
+        final HexFormat hexFormat = HexFormat.of().withLowerCase();
+        final String sha1Hash16 = hexFormat.formatHex(mdSHA1.digest());
+        final String md5Hash16 = hexFormat.formatHex(mdMD5.digest());
 
         final AbstractDbArtifact loaded = artifactStoreUnderTest.getArtifactBySha1(tenant, sha1Hash16);
         assertThat(loaded).isNotNull();

hawkbit-extension-artifact-repository-s3/pom.xml

@@ -33,10 +33,6 @@
          <groupId>com.amazonaws</groupId>
          <artifactId>aws-java-sdk-core</artifactId>
       </dependency>
-      <dependency>
-         <groupId>com.google.guava</groupId>
-         <artifactId>guava</artifactId>
-      </dependency>
       <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>