diff --git a/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java b/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java
index f597e2d..b56363d 100644
--- a/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java
+++ b/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java
@@ -419,7 +419,8 @@ public class HTTPVaultConnector implements VaultConnector {
     }
 
     @Override
-    public final SecretResponse readSecretVersion(final String mount, final String key, final Integer version) throws VaultConnectorException {
+    public final SecretResponse readSecretVersion(final String mount, final String key, final Integer version)
+            throws VaultConnectorException {
         requireAuth();
         /* Request HTTP response and parse secret metadata */
         Map<String, String> args = mapOfStrings("version", version);
@@ -428,7 +429,8 @@ public class HTTPVaultConnector implements VaultConnector {
     }
 
     @Override
-    public final MetadataResponse readSecretMetadata(final String mount, final String key) throws VaultConnectorException {
+    public final MetadataResponse readSecretMetadata(final String mount, final String key)
+            throws VaultConnectorException {
         requireAuth();
 
         /* Request HTTP response and parse secret metadata */
@@ -436,7 +438,10 @@ public class HTTPVaultConnector implements VaultConnector {
     }
 
     @Override
-    public void updateSecretMetadata(final String mount, final String key, final Integer maxVersions, final boolean casRequired) throws VaultConnectorException {
+    public void updateSecretMetadata(final String mount,
+                                     final String key,
+                                     final Integer maxVersions,
+                                     final boolean casRequired) throws VaultConnectorException {
         requireAuth();
 
         Map<String, Object> payload = mapOf(
@@ -448,7 +453,10 @@ public class HTTPVaultConnector implements VaultConnector {
     }
 
     @Override
-    public final SecretVersionResponse writeSecretData(final String mount, final String key, final Map<String, Object> data, final Integer cas) throws VaultConnectorException {
+    public final SecretVersionResponse writeSecretData(final String mount,
+                                                       final String key,
+                                                       final Map<String, Object> data,
+                                                       final Integer cas) throws VaultConnectorException {
         requireAuth();
 
         if (key == null || key.isEmpty()) {
@@ -480,7 +488,8 @@ public class HTTPVaultConnector implements VaultConnector {
     }
 
     @Override
-    public final void write(final String key, final Map<String, Object> data, final Map<String, Object> options) throws VaultConnectorException {
+    public final void write(final String key, final Map<String, Object> data, final Map<String, Object> options)
+            throws VaultConnectorException {
         requireAuth();
 
         if (key == null || key.isEmpty()) {
@@ -521,17 +530,20 @@ public class HTTPVaultConnector implements VaultConnector {
     }
 
     @Override
-    public final void deleteSecretVersions(final String mount, final String key, final int... versions) throws VaultConnectorException {
+    public final void deleteSecretVersions(final String mount, final String key, final int... versions)
+            throws VaultConnectorException {
         handleSecretVersions(mount, PATH_DELETE, key, versions);
     }
 
     @Override
-    public final void undeleteSecretVersions(final String mount, final String key, final int... versions) throws VaultConnectorException {
+    public final void undeleteSecretVersions(final String mount, final String key, final int... versions)
+            throws VaultConnectorException {
         handleSecretVersions(mount, PATH_UNDELETE, key, versions);
     }
 
     @Override
-    public final void destroySecretVersions(final String mount, final String key, final int... versions) throws VaultConnectorException {
+    public final void destroySecretVersions(final String mount, final String key, final int... versions)
+            throws VaultConnectorException {
         handleSecretVersions(mount, PATH_DESTROY, key, versions);
     }
 
@@ -545,7 +557,10 @@ public class HTTPVaultConnector implements VaultConnector {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    private void handleSecretVersions(final String mount, final String pathPart, final String key, final int... versions) throws VaultConnectorException {
+    private void handleSecretVersions(final String mount,
+                                      final String pathPart,
+                                      final String key,
+                                      final int... versions) throws VaultConnectorException {
         requireAuth();
 
         /* Request HTTP response and expect empty result */
@@ -698,7 +713,7 @@ public class HTTPVaultConnector implements VaultConnector {
      */
     private static Map<String, String> mapOfStrings(Object... keyValues) {
         Map<String, String> map = new HashMap<>(keyValues.length / 2, 1);
-        for (int i = 0; i < keyValues.length -1; i = i + 2) {
+        for (int i = 0; i < keyValues.length - 1; i = i + 2) {
             Object key = keyValues[i];
             Object val = keyValues[i + 1];
             if (key instanceof String && val != null) {
diff --git a/src/main/java/de/stklcode/jvault/connector/VaultConnector.java b/src/main/java/de/stklcode/jvault/connector/VaultConnector.java
index a8b1694..d3f89e1 100644
--- a/src/main/java/de/stklcode/jvault/connector/VaultConnector.java
+++ b/src/main/java/de/stklcode/jvault/connector/VaultConnector.java
@@ -422,7 +422,9 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    default SecretVersionResponse writeSecretData(final String mount, final String key, final Map<String, Object> data) throws VaultConnectorException {
+    default SecretVersionResponse writeSecretData(final String mount,
+                                                  final String key,
+                                                  final Map<String, Object> data) throws VaultConnectorException {
         return writeSecretData(mount, key, data, null);
     }
 
@@ -440,7 +442,10 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    SecretVersionResponse writeSecretData(final String mount, final String key, final Map<String, Object> data, final Integer cas) throws VaultConnectorException;
+    SecretVersionResponse writeSecretData(final String mount,
+                                          final String key,
+                                          final Map<String, Object> data,
+                                          final Integer cas) throws VaultConnectorException;
 
     /**
      * Retrieve secret data from Vault.
@@ -455,7 +460,8 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    SecretResponse readSecretVersion(final String mount, final String key, final Integer version) throws VaultConnectorException;
+    SecretResponse readSecretVersion(final String mount, final String key, final Integer version)
+            throws VaultConnectorException;
 
     /**
      * Retrieve secret metadata from Vault.
@@ -484,7 +490,10 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    void updateSecretMetadata(final String mount, final String key, final Integer maxVersions, final boolean casRequired) throws VaultConnectorException;
+    void updateSecretMetadata(final String mount,
+                              final String key,
+                              final Integer maxVersions,
+                              final boolean casRequired) throws VaultConnectorException;
 
     /**
      * List available nodes from Vault.
@@ -529,7 +538,8 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8 {@code options} parameter added
      */
-    void write(final String key, final Map<String, Object> data, final Map<String, Object> options) throws VaultConnectorException;
+    void write(final String key, final Map<String, Object> data, final Map<String, Object> options)
+            throws VaultConnectorException;
 
     /**
      * Delete key from Vault.
@@ -576,7 +586,8 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    void deleteSecretVersions(final String mount, final String key, final int... versions) throws VaultConnectorException;
+    void deleteSecretVersions(final String mount, final String key, final int... versions)
+            throws VaultConnectorException;
 
     /**
      * Undelete (restore) secret versions from Vault.
@@ -588,7 +599,8 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    void undeleteSecretVersions(final String mount, final String key, final int... versions) throws VaultConnectorException;
+    void undeleteSecretVersions(final String mount, final String key, final int... versions)
+            throws VaultConnectorException;
 
     /**
      * Destroy secret versions from Vault.
@@ -600,7 +612,8 @@ public interface VaultConnector extends AutoCloseable, Serializable {
      * @throws VaultConnectorException on error
      * @since 0.8
      */
-    void destroySecretVersions(final String mount, final String key, final int... versions) throws VaultConnectorException;
+    void destroySecretVersions(final String mount, final String key, final int... versions)
+            throws VaultConnectorException;
 
     /**
      * Revoke given lease immediately.
diff --git a/src/main/java/de/stklcode/jvault/connector/internal/RequestHelper.java b/src/main/java/de/stklcode/jvault/connector/internal/RequestHelper.java
index ee3d0fc..724640f 100644
--- a/src/main/java/de/stklcode/jvault/connector/internal/RequestHelper.java
+++ b/src/main/java/de/stklcode/jvault/connector/internal/RequestHelper.java
@@ -127,7 +127,8 @@ public final class RequestHelper implements Serializable {
      * @throws VaultConnectorException on connection error
      * @since 0.8
      */
-    public void postWithoutResponse(final String path, final Object payload, final String token) throws VaultConnectorException {
+    public void postWithoutResponse(final String path, final Object payload, final String token)
+            throws VaultConnectorException {
         if (!post(path, payload, token).isEmpty()) {
             throw new InvalidResponseException(Error.UNEXPECTED_RESPONSE);
         }
@@ -143,7 +144,8 @@ public final class RequestHelper implements Serializable {
      * @throws VaultConnectorException on connection error
      * @since 0.8 Added {@code token} parameter.
      */
-    public String put(final String path, final Map<String, String> payload, final String token) throws VaultConnectorException {
+    public String put(final String path, final Map<String, String> payload, final String token)
+            throws VaultConnectorException {
         // Initialize PUT.
         var req = HttpRequest.newBuilder(URI.create(baseURL + path));
 
@@ -254,8 +256,8 @@ public final class RequestHelper implements Serializable {
 
         if (!payload.isEmpty()) {
             uriBuilder.append("?").append(
-                    payload.entrySet().stream().map(
-                            par -> URLEncoder.encode(par.getKey(), UTF_8) + "=" + URLEncoder.encode(par.getValue(), UTF_8)
+                    payload.entrySet().stream().map(par ->
+                            URLEncoder.encode(par.getKey(), UTF_8) + "=" + URLEncoder.encode(par.getValue(), UTF_8)
                     ).collect(Collectors.joining("&"))
             );
         }
@@ -386,7 +388,8 @@ public final class RequestHelper implements Serializable {
             }
 
             return sslContext;
-        } catch (CertificateException | NoSuchAlgorithmException | KeyStoreException | IOException | KeyManagementException e) {
+        } catch (CertificateException | NoSuchAlgorithmException | KeyStoreException | IOException |
+                 KeyManagementException e) {
             throw new TlsException(Error.INIT_SSL_CONTEXT, e);
         }
     }
diff --git a/src/main/java/de/stklcode/jvault/connector/model/TokenRole.java b/src/main/java/de/stklcode/jvault/connector/model/TokenRole.java
index 5c136f1..574bae1 100644
--- a/src/main/java/de/stklcode/jvault/connector/model/TokenRole.java
+++ b/src/main/java/de/stklcode/jvault/connector/model/TokenRole.java
@@ -264,7 +264,7 @@ public final class TokenRole implements Serializable {
     @Override
     public int hashCode() {
         return Objects.hash(name, allowedPolicies, allowedPoliciesGlob, disallowedPolicies, disallowedPoliciesGlob,
-                orphan, renewable,  pathSuffix, allowedEntityAliases, tokenBoundCidrs, tokenExplicitMaxTtl,
+                orphan, renewable, pathSuffix, allowedEntityAliases, tokenBoundCidrs, tokenExplicitMaxTtl,
                 tokenNoDefaultPolicy, tokenNumUses, tokenPeriod, tokenType);
     }
 
diff --git a/src/main/java/de/stklcode/jvault/connector/model/response/MetaSecretResponse.java b/src/main/java/de/stklcode/jvault/connector/model/response/MetaSecretResponse.java
index 3d88992..3b49579 100644
--- a/src/main/java/de/stklcode/jvault/connector/model/response/MetaSecretResponse.java
+++ b/src/main/java/de/stklcode/jvault/connector/model/response/MetaSecretResponse.java
@@ -41,7 +41,7 @@ public class MetaSecretResponse extends SecretResponse {
 
     @Override
     public final Map<String, Serializable> getData() {
-        if (secret !=  null) {
+        if (secret != null) {
             return secret.getData();
         } else {
             return Collections.emptyMap();
@@ -50,7 +50,7 @@ public class MetaSecretResponse extends SecretResponse {
 
     @Override
     public final VersionMetadata getMetadata() {
-        if (secret !=  null) {
+        if (secret != null) {
             return secret.getMetadata();
         } else {
             return null;
diff --git a/src/main/java/de/stklcode/jvault/connector/model/response/embedded/SecretMetadata.java b/src/main/java/de/stklcode/jvault/connector/model/response/embedded/SecretMetadata.java
index a4fd4c2..2773bcb 100644
--- a/src/main/java/de/stklcode/jvault/connector/model/response/embedded/SecretMetadata.java
+++ b/src/main/java/de/stklcode/jvault/connector/model/response/embedded/SecretMetadata.java
@@ -37,7 +37,8 @@ import java.util.Objects;
 public final class SecretMetadata implements Serializable {
     private static final long serialVersionUID = 1684891108903409038L;
 
-    private static final DateTimeFormatter TIME_FORMAT = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSSXXX");
+    private static final DateTimeFormatter TIME_FORMAT =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSSXXX");
 
     @JsonProperty("created_time")
     private String createdTimeString;
diff --git a/src/main/java/de/stklcode/jvault/connector/model/response/embedded/VersionMetadata.java b/src/main/java/de/stklcode/jvault/connector/model/response/embedded/VersionMetadata.java
index 7ad8a48..be9f3f9 100644
--- a/src/main/java/de/stklcode/jvault/connector/model/response/embedded/VersionMetadata.java
+++ b/src/main/java/de/stklcode/jvault/connector/model/response/embedded/VersionMetadata.java
@@ -36,7 +36,8 @@ import java.util.Objects;
 public final class VersionMetadata implements Serializable {
     private static final long serialVersionUID = -5286693953873839611L;
 
-    private static final DateTimeFormatter TIME_FORMAT = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSSXXX");
+    private static final DateTimeFormatter TIME_FORMAT =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSSXXX");
 
     @JsonProperty("created_time")
     private String createdTimeString;