Call Stack Details in Java

As I get more into Android and back into Java, I wanted to know if there was a way to find out where a method was called from. It seems that the StackTarceElement class can be used to get details about the call stack. I found a great article on this blog showing me how to to do this.

I made one addition to the code found on this blog:

public static String getCallStack(int skip)
 {
  StringBuilder sb = new StringBuilder();
  
  StackTraceElement[] stackTraceElements = 
   Thread.currentThread().getStackTrace();
  
  for (int i = 3 + skip ; i<stackTraceElements.length; i++)
  {
   StackTraceElement ste = stackTraceElements[i];
   String classname = ste.getClassName();
   String methodName = ste.getMethodName();
   int lineNumber = ste.getLineNumber();

   sb.append(classname + "." + methodName + ":" + lineNumber + "\r\n");
  }
  
  return sb.toString();
 }

Java and POP3 with Hotmail

A simple example as we learn more on the mail protocols:

package email;

import javax.mail.*;

public class MailUtils {

public static Store getStore(Account account) throws MessagingException {
 return getStore(account.Email, account.Password);
}

public static Store getStore(String email, String password) throws MessagingException {
 java.util.Properties props = new java.util.Properties();
 props.setProperty("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
 props.setProperty("mail.pop3.socketFactory.fallback", "false");
 props.setProperty("mail.pop3.socketFactory.port", "995");

 javax.mail.Session session = Session.getDefaultInstance(props);

 Store store = session.getStore("pop3");
 store.connect("pop3.live.com", email, password);

 return store;
}

public static Folder[] getFolders(Store store) throws MessagingException
{
 return store.getDefaultFolder().list("*");
}

public static Folder getFolderByUrl(Store store, String url) throws MessagingException
{
 return store.getFolder(new URLName(url));
}

public static Message[] getMessages(Folder folder) throws MessagingException {
 try {
  folder.open(Folder.READ_ONLY);
  Message[] messages = folder.getMessages();
 
  for(Message m : messages) {
   String s = m.getSubject();
   System.out.print(s);
  }
 
  return messages;
 }
 finally {
  //folder.close(false);
 }
}

}