I've been putting together a simple sketch to filter tweets by location and return the user profile images. These forums have been very helpful. No problems with the sketch in processing, however, I am getting an error message when I try to run the exported applet.

I have signed the .jar files per instructions at this link:

http://wiki.processing.org/w/Sign_an_Applet

When running the applet index.html I receive this error in the java console:

2. Exception in thread "Animation Thread" java.lang.AssertionError: java.lang.reflect.InvocationTargetException
3. at twitter4j.TwitterFactory.<clinit>(TwitterFactory.java:76)
4. at test4.setup(test4.java:78)
5. at processing.core.PApplet.handleDraw(Unknown Source)
6. at processing.core.PApplet.run(Unknown Source)
7. at java.lang.Thread.run(Unknown Source)
8. Caused by: java.lang.reflect.InvocationTargetException
9. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
10. at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
11. at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
12. at java.lang.reflect.Constructor.newInstance(Unknown Source)
13. at twitter4j.TwitterFactory.<clinit>(TwitterFactory.java:70)
14. ... 4 more
15. Caused by: java.lang.ExceptionInInitializerError
16. at twitter4j.internal.http.HttpClientWrapper.<init>(HttpClientWrapper.java:48)
17. at twitter4j.TwitterBaseImpl.init(TwitterBaseImpl.java:86)
18. at twitter4j.TwitterBaseImpl.<init>(TwitterBaseImpl.java:65)
19. at twitter4j.TwitterImpl.<init>(TwitterImpl.java:50)
20. ... 9 more
21. Caused by: java.security.AccessControlException: access denied (java.util.PropertyPermission twitter4j.http.httpClient read)
22. at java.security.AccessControlContext.checkPermission(Unknown Source)
23. at java.security.AccessController.checkPermission(Unknown Source)
24. at java.lang.SecurityManager.checkPermission(Unknown Source)
25. at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
26. at java.lang.System.getProperty(Unknown Source)
27. at twitter4j.internal.http.HttpClientFactory.<clinit>(HttpClientFactory.java:33)
28. ... 13 more

And lastly, here's my code out of processing. Many thanks for any help.

2. import twitter4j.conf.*;
3. import twitter4j.internal.async.*;
4. import twitter4j.internal.org.json.*;
5. import twitter4j.internal.logging.*;
6. import twitter4j.json.*;
7. import twitter4j.internal.util.*;
8. import twitter4j.management.*;
9. import twitter4j.auth.*;
10. import twitter4j.api.*;
11. import twitter4j.util.*;
12. import twitter4j.internal.http.*;
13. import twitter4j.*;
14. import twitter4j.internal.json.*;
15. 
    
16. ArrayList<String> username = new ArrayList();
17. ArrayList<String> imgs = new ArrayList();
18. 
    
19. 
    
20. double lat;
21. double lon;
22. double res;
23. String resUnit;
24. 
    
25. PImage twitimg;
26. 
    
27. void setup() {
28.   size(990, 480);
29.   background(255);
30.   smooth();
31.   noStroke();
32. 
    
33.   ConfigurationBuilder cb = new ConfigurationBuilder();
34.   cb.setOAuthConsumerKey("XXXXX");
35.   cb.setOAuthConsumerSecret("XXXXXXX");
36.   cb.setOAuthAccessToken("XXXXXXX ");
37.   cb.setOAuthAccessTokenSecret(" XXXXXXX ");
38. 
    
39.   lat = 40.7404;
40.   lon =74.0070;
41.   res = 1;
42.   resUnit="mi";
43. 
    
44.   try {
45. 
    
46.     Twitter twitter = new TwitterFactory(cb.build()).getInstance();
47. 
    
48.     Query query = new Query();
49.     GeoLocation nyc = new GeoLocation(lat, lon);
50.     query.setGeoCode(nyc, res, resUnit);
51.     query.setRpp(200);
52. 
    
53.     QueryResult result = twitter.search(query);
54. 
    
55. 
    
56.     ArrayList tweets = (ArrayList) result.getTweets();
57. 
    
58. 
    
59.     for (int i = 0; i < tweets.size(); i++) {
60.       Tweet t = (Tweet) tweets.get(i);
61.       String user = t.getFromUser();
62.       Long id = t.getFromUserId();
63.       String url = t.getProfileImageUrl();
64.       String msg = t.getText();
65.       Date d = t.getCreatedAt();
66. 
    
67.       username.add(user);
68. 
    
69.       imgs.add(url);
70.     };
71.   }
72. 
    
73.   catch (TwitterException te) {
74.     println("Couldn't connect: " + te);
75.   };
76. }
77. 
    
78. 
    
79. void draw() {
80. 
    
81.   int k = (frameCount % imgs.size()); 
82.   String pix = imgs.get(k);
83.   String users = username.get(k);
84. 
    
85.   PFont font;
86.   font = loadFont("FuturaLT-ExtraBoldOblique-18.vlw"); 
87.   fill(0);
88.   textFont(font);
89.   text(k + " " + users, 0, 35);
90. 
    
91.   fill(255, 200);
92. 
    
93.   rect(0, 0, 220, 45);
94. 
    
95.   twitimg = loadImage(pix, "png");
96.   image(twitimg, random(width), random(height));
97.   //text(users, twitimg.x, twitimg.y);
98. 
    
99.   fill(255, 1);
100.   rect(0, 0, width, height);
101. 
     
102.   fill(222, random(50, 150));
103.   textSize(random(10, 30));
104. }