Java Mail Sending troubleshooting

[Shounak Kundu]

Here's my code :

package shounak;


import java.security.Security;
import java.util.Properties;

//import javax.activation.DataHandler;
//import javax.activation.DataSource;
//import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;


public class MailSend {
	
	
	private static final String SMTP_HOST_NAME = "smtp.gmail.com";
	private static final String SMTP_PORT = "465";
	private static  String emailMsgTxt = null;
	private static  String emailSubjectTxt = null;
	private static  String emailFromAddress = "[e-mail]";
	private static final String SSL_FACTORY ="javax.net.ssl.SSLSocketFactory";
	private static  String sendTo = null;
	
	
	public MailSend( String recipient ,  String mailSubject , String mailBody ) throws MessagingException,SecurityException
	{
		
		sendTo = recipient;
		emailSubjectTxt = mailSubject;
		emailMsgTxt = mailBody;
		
		Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
		
		sendSSLMsg(sendTo,emailSubjectTxt,emailMsgTxt,emailFromAddress);
		
	}
	
	public void sendSSLMsg(String recipient, String mailSubject,String mailBody, String from)throws MessagingException,SecurityException
	{
		
		boolean debug = true;

		Properties props = new Properties();
		props.put("mail.smtp.host", SMTP_HOST_NAME);
		props.put("mail.smtp.auth", "true");
		props.put("mail.debug", "true");
		props.put("mail.smtp.port", SMTP_PORT);
		props.put("mail.smtp.socketFactory.port", SMTP_PORT);
		props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
		props.put("mail.smtp.socketFactory.fallback", "false");
		

		Session session = Session.getDefaultInstance(props,
		new javax.mail.Authenticator() {

		protected PasswordAuthentication getPasswordAuthentication() {
		return new PasswordAuthentication("[e-mail]", "tictdreamjobz");
		}
		});
		
		MimeMessage message1 =
			new MimeMessage(session);
			message1.setFrom(
			new InternetAddress(from));
			message1.addRecipient(
			Message.RecipientType.TO,
			new InternetAddress(recipient));

			/*message1.addRecipient(
			Message.RecipientType.TO,
			new InternetAddress(recipients[1]));*/
			
			message1.setSubject(
			mailSubject);
			
			// create the message part
			MimeBodyPart messageBodyPart =
			new MimeBodyPart();
			
			//fill message
			messageBodyPart.setText(mailBody);
			
			Multipart multipart = new MimeMultipart();
			multipart.addBodyPart(messageBodyPart);
			
			message1.setContent(multipart);

			
			Transport.send( message1 );


		
	}

	

}

This code is working fine. But , as the session object is initialized every time this class is called, it is generating a SecurityException sometimes.


How can I overcome this ?

In short , how can I check

Session session = Session.getDefaultInstance(props,
		new javax.mail.Authenticator() {

		protected PasswordAuthentication getPasswordAuthentication() {
		return new PasswordAuthentication("[e-mail]", "tictdreamjobz");
		}
		});
		

this portion has been called before or not ?

[Paul Clapham]

By setting a boolean variable to true after that code is called, and checking if that variable is true before calling that code?

[Shounak Kundu]

Actually I want to check if the session instance has been created earlier or not.

If not , then call the method of Session.getDefaultInstance();

else

destroy the session and call it.


How can I end a session ....

[Shounak Kundu]

if(isCalled=false)
		{
		
			Session session = Session.getDefaultInstance(props,
					new javax.mail.Authenticator() {

				protected PasswordAuthentication getPasswordAuthentication() {
					return new PasswordAuthentication("[e-mail]", "tictdreamjobz");
		
		
																			}
					});
		isCalled = true;
		}

But the MimeMessage object is complaining that the session object is unreachable...

How to resolve that ?

[Shounak Kundu]

All I want to do is to Authenticate my email username and password only once....

[Shounak Kundu]

One more thing :

I don't why it is happening. When I am trying to call the MailSend class from a JSP page it is showing exception. But , if call the same MailSend class from a Java program , it is not showing any exception.

Why is it happening ?


I am giving you both the JSP page and the Plain Java class.



Here is the content of testmail.jsp :

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="javax.sql.*,java.sql.*,java.io.*,java.util.*,javax.naming.*,shounak.*,javax.mail.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Mail test::</title>
</head>
<body>

<%
try {
	MailSend m = new MailSend("[e-mail]","Hi ","Hey , wassup");
} catch (SecurityException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
} catch (MessagingException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}


%>


</body>
</html>

And the stacktrace while running testMail.jsp

No , IT IS NOT CALLEDjava.lang.SecurityException

	at javax.mail.Session.getDefaultInstance(Session.java:137)
	at shounak.MailSend.sendSSLMsg(MailSend.java:82)
	at shounak.MailSend.<init>(MailSend.java:43)
	at org.apache.jsp.test.testMail_jsp._jspService(testMail_jsp.java:71)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke(DefaultSubjectValve.java:56)
	at org.apache.geronimo.tomcat.GeronimoStandardContext$SystemMethodValve.invoke(GeronimoStandardContext.java:406)
	at org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke(GeronimoBeforeAfterValve.java:47)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
	at org.apache.geronimo.tomcat.valve.ThreadCleanerValve.invoke(ThreadCleanerValve.java:40)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:636)

And here is the MailTest2.java , which works perfectly fine:

import javax.mail.MessagingException;

import shounak.MailSend;
public class MailTest2 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		try {
			MailSend m = new MailSend("[e-mail]","Hi","Hey , wassup");
		} catch (SecurityException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (MessagingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

}

I am puzzled , can you tell me why this is happening . They are calling the same instance , while one is working fine , another one is generating exception.

[Shounak Kundu]

And here is my modified MailSend class :

package shounak;


import java.security.Security;
import java.util.Properties;

//import javax.activation.DataHandler;
//import javax.activation.DataSource;
//import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;


public class MailSend {
	
	
	private static final String SMTP_HOST_NAME = "smtp.gmail.com";
	private static final String SMTP_PORT = "465";
	private static  String emailMsgTxt = null;
	private static  String emailSubjectTxt = null;
	private static  String emailFromAddress = "[e-mail]";
	private static final String SSL_FACTORY ="javax.net.ssl.SSLSocketFactory";
	private static  String sendTo = null;
	
	
	public MailSend( String recipient ,  String mailSubject , String mailBody ) throws MessagingException,SecurityException
	{
		
		sendTo = recipient;
		emailSubjectTxt = mailSubject;
		emailMsgTxt = mailBody;
		
		Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
		
		sendSSLMsg(sendTo,emailSubjectTxt,emailMsgTxt,emailFromAddress);
		
	}
	
	public void sendSSLMsg(String recipient, String mailSubject,String mailBody, String from)throws MessagingException,SecurityException
	{
		
		boolean debug = true;
		 boolean isCalled  = false;

		Properties props = new Properties();
		props.put("mail.smtp.host", SMTP_HOST_NAME);
		props.put("mail.smtp.auth", "true");
		props.put("mail.debug", "true");
		props.put("mail.smtp.port", SMTP_PORT);
		props.put("mail.smtp.socketFactory.port", SMTP_PORT);
		props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
		props.put("mail.smtp.socketFactory.fallback", "false");
		
		if(isCalled=false)
		{
			
			System.out.println(" the session .getDefaultInstance(props,new javax.mail.Authenticator())  called  ");
		
			Session session = Session.getDefaultInstance(props,
					new javax.mail.Authenticator() {

				protected PasswordAuthentication getPasswordAuthentication() {
					return new PasswordAuthentication("[e-mail]", "tictdreamjobz");
		
		
																			}
					});
		isCalled = true;
		}
		else
		{
			
		System.out.println("No , IT IS NOT CALLED");	
		Session	session = Session.getDefaultInstance(props,new javax.mail.Authenticator() {

			protected PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication("[e-mail]", "tictdreamjobz");
	
	
																		}
				});

			
			MimeMessage message1 =
			new MimeMessage(session);
			message1.setFrom(
			new InternetAddress(from));
			message1.addRecipient(
			Message.RecipientType.TO,
			new InternetAddress(recipient));

			/*message1.addRecipient(
			Message.RecipientType.TO,
			new InternetAddress(recipients[1]));*/
			
			message1.setSubject(
			mailSubject);
			
			// create the message part
			MimeBodyPart messageBodyPart =
			new MimeBodyPart();
			
			//fill message
			messageBodyPart.setText(mailBody);
			
			Multipart multipart = new MimeMultipart();
			multipart.addBodyPart(messageBodyPart);
			
			message1.setContent(multipart);

			
			Transport.send( message1 );


		}
	}

	

}

[Shounak Kundu]

Can anyone help me please ?

This problem is seriously driving me nuts....

[Ulf Dittmer]

It's a Security exception - that means the servlet container is running with a security manager enabled that forbids something you're trying to do. Try running the servlet container with a less restrictive security manager (or no security manager at all).

Desktop apps are typically run without a security manager, which is why you don't get the exception there.

[Shounak Kundu]

I am using IBM WebSphere Community Edition as my server. Any idea , how to disable security manager in it ?