I'm trying to use the code found here
to send an email from an Android app.
I'm using ADT Build 22.0.5
I've seen many people having this issue but for different reasons and I really can't get my head around it.
This is the complete error log
09-14 15:53:49.001: E/AndroidRuntime(4611): FATAL EXCEPTION: main
09-14 15:53:49.001: E/AndroidRuntime(4611): java.lang.IllegalStateException: Could not execute method of the activity
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View$1.onClick(View.java:3599)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View.performClick(View.java:4204)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View$PerformClick.run(View.java:17355)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.os.Handler.handleCallback(Handler.java:725)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.os.Handler.dispatchMessage(Handler.java:92)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.os.Looper.loop(Looper.java:137)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.app.ActivityThread.main(ActivityThread.java:5041)
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invokeNative(Native Method)
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invoke(Method.java:511)
09-14 15:53:49.001: E/AndroidRuntime(4611): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
09-14 15:53:49.001: E/AndroidRuntime(4611): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
09-14 15:53:49.001: E/AndroidRuntime(4611): at dalvik.system.NativeStart.main(Native Method)
09-14 15:53:49.001: E/AndroidRuntime(4611): Caused by: java.lang.reflect.InvocationTargetException
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invokeNative(Native Method)
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invoke(Method.java:511)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View$1.onClick(View.java:3594)
09-14 15:53:49.001: E/AndroidRuntime(4611): ... 11 more
09-14 15:53:49.001: E/AndroidRuntime(4611): Caused by: java.lang.NoClassDefFoundError: com.example.naghe.Mail
09-14 15:53:49.001: E/AndroidRuntime(4611): at com.example.naghe.NagheMainActivity.sendMessage(NagheMainActivity.java:21)
and this is my main activity
package com.example.naghe;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class NagheMainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_naghe_main);
}
public void sendMessage (View view) {
Mail m = new Mail("test", "test");
String[] toArr = {"mail};
m.setTo(toArr);
m.setFrom("wooo@wooo.com");
m.setSubject("This is an email sent using my Mail JavaMail wrapper from an Android device.");
m.setBody("Email body.");
try {
m.addAttachment("/sdcard/filelocation");
if(m.send()) {
Toast.makeText(NagheMainActivity.this, "Email was sent successfully.", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(NagheMainActivity.this, "Email was not sent.", Toast.LENGTH_LONG).show();
}
} catch(Exception e) {
//Toast.makeText(MailApp.this, "There was a problem sending the email.", Toast.LENGTH_LONG).show();
Log.e("MailApp", "Could not send email", e);
}
}
}
This is the XML, it's only a button, since i'm testing this
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".NagheMainActivity" >
<Button
android:id="@+id/send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="84dp"
android:onClick="sendMessage"
android:text="Button" />
</RelativeLayout>
and YES, I do have the class Mail in my project. You can find that class on the very first link on this post, but here it is
Mail.java
package com.example.naghe;
import java.util.Date;
import java.util.Properties;
import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.activation.MailcapCommandMap;
import javax.mail.BodyPart;
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 Mail extends javax.mail.Authenticator {
private String _user;
private String _pass;
private String[] _to;
private String _from;
private String _port;
private String _sport;
private String _host;
private String _subject;
private String _body;
private boolean _auth;
private boolean _debuggable;
private Multipart _multipart;
public Mail() {
_host = "smtp.gmail.com"; // default smtp server
_port = "465"; // default smtp port
_sport = "465"; // default socketfactory port
_user = ""; // username
_pass = ""; // password
_from = ""; // email sent from
_subject = ""; // email subject
_body = ""; // email body
_debuggable = false; // debug mode on or off - default off
_auth = true; // smtp authentication - default on
_multipart = new MimeMultipart();
// There is something wrong with MailCap, javamail can not find a handler for the multipart/mixed part, so this bit needs to be added.
MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap();
mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
CommandMap.setDefaultCommandMap(mc);
}
public Mail(String user, String pass) {
this();
_user = user;
_pass = pass;
}
public boolean send() throws Exception {
Properties props = _setProperties();
if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") && !_subject.equals("") && !_body.equals("")) {
Session session = Session.getInstance(props, this);
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(_from));
InternetAddress[] addressTo = new InternetAddress[_to.length];
for (int i = 0; i < _to.length; i++) {
addressTo[i] = new InternetAddress(_to[i]);
}
msg.setRecipients(MimeMessage.RecipientType.TO, addressTo);
msg.setSubject(_subject);
msg.setSentDate(new Date());
// setup message body
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(_body);
_multipart.addBodyPart(messageBodyPart);
// Put parts in message
msg.setContent(_multipart);
// send email
Transport.send(msg);
return true;
} else {
return false;
}
}
public void addAttachment(String filename) throws Exception {
BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
_multipart.addBodyPart(messageBodyPart);
}
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(_user, _pass);
}
private Properties _setProperties() {
Properties props = new Properties();
props.put("mail.smtp.host", _host);
if(_debuggable) {
props.put("mail.debug", "true");
}
if(_auth) {
props.put("mail.smtp.auth", "true");
}
props.put("mail.smtp.port", _port);
props.put("mail.smtp.socketFactory.port", _sport);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
return props;
}
// the getters and setters
public String getBody() {
return _body;
}
public void setBody(String _body) {
this._body = _body;
}
public void setTo(String[] _to) {
this._to = _to;
}
public void setFrom(String _from){
this._from = _from;
}
public void setSubject(String _subject){
this._subject = _subject;
}
// more of the getters and setters …..
}
any help would be very much apreciated!
