javaherokujakarta-mail

java.lang.NoSuchMethodError: com.sun.mail.util.TraceInputStream

I'm trying to send an email through Java Mail API and it works fine on my laptop. When I'm doing exactly the same in Heroku, I'm getting this:

java.lang.NoSuchMethodError: com.sun.mail.util.TraceInputStream.(Ljava/io/InputStream;Lcom/sun/mail/util/MailLogger;)V
    at com.sun.mail.smtp.SMTPTransport.initStreams(SMTPTransport.java:2014)
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1936)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654)
    at javax.mail.Service.connect(Service.java:291)
    at ...

Here is what I have in pom.xml:

    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>mailapi</artifactId>
        <version>1.4.3</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.sun.mail</groupId>
        <artifactId>javax.mail</artifactId>
        <version>1.5.3</version>
        <scope>runtime</scope>
    </dependency>

I guess there is another version of Java Mail API inside Heroku JDK, which doesn't have this constructor... How can this be fixed?

Solution

  • By default, Java apps running on latest Heroku stack use OpenJDK 8.

    Your problem does not seems related to the actual JVM implementation but rather due to the missing smtp-1.5.1.jar in classpath . To be sure to load correctly TraceInputStream try this : 

    java.net.URL classUrl = this.getClass().getResource("com.sun.mail.util.TraceInputStream");
out.println(classUrl.getFile());