Allow reflection access to sun.security.util.HostnameChecker

changelog.md

@@ -5,7 +5,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
-### Added
+### Fixed
+ - [[#1136] Allow reflection access to sun.security.util.HostnameChecker](https://github.com/ballerina-platform/ballerina-standard-library/issues/1136)
+
+## [1.1.0-alpha8] - 2021-04-22
 
+### Added
 - [[#1248] Make possible to identify Compiler Plugin when email listener is given as a variable to the service](https://github.com/ballerina-platform/ballerina-standard-library/issues/1248)
 - [[#1113] Add compiler extension for Email module](https://github.com/ballerina-platform/ballerina-standard-library/issues/1113)

email-native/src/main/java/org/ballerinalang/stdlib/email/client/EmailAccessClient.java

@@ -40,6 +40,8 @@
 import javax.mail.Store;
 import javax.mail.search.FlagTerm;
 
+import static org.ballerinalang.stdlib.email.util.EmailConstants.HOSTNAME_CHECKER_CLASS;
+
 /**
  * Contains the functionality of email reading with POP and IMAP clients.
  *
@@ -52,6 +54,20 @@ public class EmailAccessClient {
 
     private EmailAccessClient() {}
 
+    static {
+        Class<?> hostNameCheckerClass = null;
+        try {
+            hostNameCheckerClass = Class.forName(HOSTNAME_CHECKER_CLASS);
+        } catch (ClassNotFoundException e) {
+            log.error("sun.security.util.HostnameChecker class was not found from EmailAccessClient.");
+        }
+        if (hostNameCheckerClass != null) {
+            String hostNameCheckerPackageName = hostNameCheckerClass.getPackageName();
+            Module emailAccessClientModule = EmailAccessClient.class.getModule();
+            hostNameCheckerClass.getModule().addOpens(hostNameCheckerPackageName, emailAccessClientModule);
+        }
+    }
+
     /**
      * Initializes the BObject object with the POP properties.
      * @param clientEndpoint Represents the POP Client class

email-native/src/main/java/org/ballerinalang/stdlib/email/client/SmtpClient.java

@@ -36,6 +36,8 @@
 import javax.mail.Session;
 import javax.mail.Transport;
 
+import static org.ballerinalang.stdlib.email.util.EmailConstants.HOSTNAME_CHECKER_CLASS;
+
 /**
  * Contains functionality of SMTP Client.
  *
@@ -47,6 +49,20 @@ public class SmtpClient {
 
     private SmtpClient() {}
 
+    static {
+        Class<?> hostNameCheckerClass = null;
+        try {
+            hostNameCheckerClass = Class.forName(HOSTNAME_CHECKER_CLASS);
+        } catch (ClassNotFoundException e) {
+            log.error("sun.security.util.HostnameChecker class was not found from SmtpClient.");
+        }
+        if (hostNameCheckerClass != null) {
+            String hostNameCheckerPackageName = hostNameCheckerClass.getPackageName();
+            Module smtpClientModule = SmtpClient.class.getModule();
+            hostNameCheckerClass.getModule().addOpens(hostNameCheckerPackageName, smtpClientModule);
+        }
+    }
+
     /**
      * Initializes the BObject object with the SMTP Properties.
      * @param clientEndpoint Represents the SMTP Client class

email-native/src/main/java/org/ballerinalang/stdlib/email/util/EmailConstants.java

@@ -54,6 +54,7 @@ private EmailConstants() {}
                                                                  MODULE_VERSION);
     public static final String HTML_CONTENT_TYPE = "text/html";
     public static final String DEFAULT_TRANSPORT_PROTOCOL = "TLS";
+    public static final String HOSTNAME_CHECKER_CLASS = "sun.security.util.HostnameChecker";
     public static final String SSL_SOCKET_FACTORY_CLASS = "javax.net.ssl.SSLSocketFactory";
     public static final BString ATTACHMENT_FILE_PATH = StringUtils.fromString("filePath");
     public static final BString ATTACHMENT_CONTENT_TYPE = StringUtils.fromString("contentType");