diff --git a/gradle/test/junit5.gradle b/gradle/test/junit5.gradle
index cbfd0c4..615acc1 100644
--- a/gradle/test/junit5.gradle
+++ b/gradle/test/junit5.gradle
@@ -18,7 +18,8 @@ test {
             '--add-opens=java.base/java.lang.reflect=ALL-UNNAMED',
             '--add-opens=java.base/java.io=ALL-UNNAMED',
             '--add-opens=java.base/java.nio=ALL-UNNAMED',
-            '--add-opens=java.base/java.util=ALL-UNNAMED'
+            '--add-opens=java.base/java.util=ALL-UNNAMED',
+            '--add-opens=java.base/sun.security.util=ALL-UNNAMED'
     systemProperty 'java.util.logging.config.file', 'src/test/resources/logging.properties'
     environment 'NOTIFY_SOCKET', '/run/systemd/notify'
     testLogging {
diff --git a/net-mail/src/main/java/jakarta/mail/Session.java b/net-mail/src/main/java/jakarta/mail/Session.java
index 41572ad..847a89d 100644
--- a/net-mail/src/main/java/jakarta/mail/Session.java
+++ b/net-mail/src/main/java/jakarta/mail/Session.java
@@ -1133,9 +1133,7 @@ public final class Session {
                             currLine);
                     continue;
                 }
-                Provider provider = new Provider(type, protocol, className,
-                        vendor, version);
-
+                Provider provider = new Provider(type, protocol, className, vendor, version);
                 // add the newly-created Provider to the lookup tables
                 addProvider(provider);
             }
diff --git a/net-mail/src/test/java/org/xbib/net/mail/test/util/MimeMultipartParseTest.java b/net-mail/src/test/java/org/xbib/net/mail/test/util/MimeMultipartParseTest.java
index 70baa5f..99723e9 100644
--- a/net-mail/src/test/java/org/xbib/net/mail/test/util/MimeMultipartParseTest.java
+++ b/net-mail/src/test/java/org/xbib/net/mail/test/util/MimeMultipartParseTest.java
@@ -40,7 +40,7 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
  */
 
 public class MimeMultipartParseTest {
-    private static Session session =
+    private static final Session session =
             Session.getInstance(new Properties(), null);
 
     private static final int maxsize = 10000;
@@ -63,7 +63,7 @@ public class MimeMultipartParseTest {
      * although it still takes about 30 seconds, which is on the long side
      * for a unit test.
      */
-    public void test(boolean shared) throws Exception {
+    private void test(boolean shared) throws Exception {
         testMessage(1, shared);
         testMessage(2, shared);
         testMessage(62, shared);
@@ -73,11 +73,12 @@ public class MimeMultipartParseTest {
         testMessage(1023, shared);
         testMessage(1024, shared);
         testMessage(1025, shared);
-        for (int size = 8100; size <= maxsize; size++)
+        for (int size = 8100; size <= maxsize; size++) {
             testMessage(size, shared);
+        }
     }
 
-    public void testMessage(int size, boolean shared) throws Exception {
+    private void testMessage(int size, boolean shared) throws Exception {
         //System.out.println("SIZE: " + size);
         /*
          * Construct a multipart message with a part of the
diff --git a/net-mail/src/test/resources/META-INF/javamail.default.providers b/net-mail/src/test/resources/META-INF/javamail.default.providers
new file mode 100644
index 0000000..c3e9f8d
--- /dev/null
+++ b/net-mail/src/test/resources/META-INF/javamail.default.providers
@@ -0,0 +1,6 @@
+protocol=imap; type=store; class=org.xbib.net.mail.imap.IMAPStore; vendor=xbib;
+protocol=imaps; type=store; class=org.xbib.net.mail.imap.IMAPSSLStore; vendor=xbib;
+protocol=pop3; type=store; class=org.xbib.net.mail.pop3.POP3Store; vendor=xbib;
+protocol=pop3s; type=store; class=org.xbib.net.mail.pop3.POP3SSLStore; vendor=xbib;
+protocol=smtp; type=transport; class=org.xbib.net.mail.smtp.SMTPTransport; vendor=xbib;
+protocol=smtps; type=transport; class=org.xbib.net.mail.smtp.SMTPSSLTransport; vendor=xbib;
diff --git a/net-mail/src/test/resources/META-INF/services/jakarta.mail.Provider b/net-mail/src/test/resources/META-INF/services/jakarta.mail.Provider
new file mode 100644
index 0000000..2f8a6a6
--- /dev/null
+++ b/net-mail/src/test/resources/META-INF/services/jakarta.mail.Provider
@@ -0,0 +1,4 @@
+org.xbib.net.mail.pop3.POP3Provider
+org.xbib.net.mail.pop3.POP3SSLProvider
+org.xbib.net.mail.smtp.SMTPProvider
+org.xbib.net.mail.smtp.SMTPSSLProvider
diff --git a/net-mail/src/test/resources/META-INF/services/jakarta.mail.util.StreamProvider b/net-mail/src/test/resources/META-INF/services/jakarta.mail.util.StreamProvider
new file mode 100644
index 0000000..45c1577
--- /dev/null
+++ b/net-mail/src/test/resources/META-INF/services/jakarta.mail.util.StreamProvider
@@ -0,0 +1 @@
+org.xbib.net.mail.util.MailStreamProvider
\ No newline at end of file
diff --git a/net-mail/src/test/resources/logging.properties b/net-mail/src/test/resources/logging.properties
index f9ad0c6..b5665ac 100644
--- a/net-mail/src/test/resources/logging.properties
+++ b/net-mail/src/test/resources/logging.properties
@@ -1,4 +1,4 @@
 handlers=java.util.logging.ConsoleHandler
-.level=ALL
-java.util.logging.ConsoleHandler.level=ALL
+.level=INFO
+java.util.logging.ConsoleHandler.level=INFO
 java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter