import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String fileText = "http://e...content-available-to-author-only...e.com//foo/bar http://e...content-available-to-author-only...e.com//foo/bar  1: 2/";
        String pattern = "(\\bhttps?://)|[:/]";
        Pattern r = Pattern.compile(pattern);
        Matcher m = r.matcher(fileText);
 
        StringBuffer sb = new StringBuffer();
        while (m.find()) {
        	if (m.group(1) != null)
        		m.appendReplacement(sb, m.group(1));
        	else
            	m.appendReplacement(sb, " ");
        }
        m.appendTail(sb);
        System.out.println(sb);
	}
}

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