diff --git a/apps/addressbook/java/src/net/i2p/addressbook/AddressBook.java b/apps/addressbook/java/src/net/i2p/addressbook/AddressBook.java
index c480d8688..4a124e488 100644
--- a/apps/addressbook/java/src/net/i2p/addressbook/AddressBook.java
+++ b/apps/addressbook/java/src/net/i2p/addressbook/AddressBook.java
@@ -120,11 +120,11 @@ class AddressBook {
                 subscription.setLastFetched(I2PAppContext.getGlobalContext().clock().now());
                 subf = tmp;
             } else {
-                a = Collections.EMPTY_MAP;
+                a = Collections.emptyMap();
                 tmp.delete();
             }
         } catch (IOException ioe) {
-            a = Collections.EMPTY_MAP;
+            a = Collections.emptyMap();
         }
         this.addresses = a;
         this.subFile = subf;
@@ -148,7 +148,7 @@ class AddressBook {
         try {
             a = ConfigParser.parse(file);
         } catch (IOException exp) {
-            a = new HashMap();
+            a = new HashMap<String, String>();
         }
         this.addresses = a;
         this.subFile = null;
diff --git a/apps/addressbook/java/src/net/i2p/addressbook/ConfigIterator.java b/apps/addressbook/java/src/net/i2p/addressbook/ConfigIterator.java
index 044f41c3c..955363eaf 100644
--- a/apps/addressbook/java/src/net/i2p/addressbook/ConfigIterator.java
+++ b/apps/addressbook/java/src/net/i2p/addressbook/ConfigIterator.java
@@ -138,7 +138,8 @@ class ConfigIterator implements Iterator<Map.Entry<String, String>> {
         public boolean equals(Object o) {
             if (!(o instanceof Map.Entry))
                 return false;
-            Map.Entry e = (Map.Entry) o;
+            @SuppressWarnings("unchecked")
+            Map.Entry<Object, Object> e = (Map.Entry<Object, Object>) o;
             return key.equals(e.getKey()) && value.equals(e.getValue());
         }
     }
diff --git a/apps/addressbook/java/src/net/i2p/addressbook/ConfigParser.java b/apps/addressbook/java/src/net/i2p/addressbook/ConfigParser.java
index e80aa8c74..e6e5eefab 100644
--- a/apps/addressbook/java/src/net/i2p/addressbook/ConfigParser.java
+++ b/apps/addressbook/java/src/net/i2p/addressbook/ConfigParser.java
@@ -87,7 +87,7 @@ class ConfigParser {
      *  
      */
     public static Map<String, String>  parse(BufferedReader input) throws IOException {
-        Map<String, String>  result = new HashMap();
+        Map<String, String>  result = new HashMap<String, String>();
         String inputLine;
         inputLine = input.readLine();
         while (inputLine != null) {
@@ -179,7 +179,7 @@ class ConfigParser {
      */
     public static List<String> parseSubscriptions(BufferedReader input)
             throws IOException {
-        List<String> result = new LinkedList();
+        List<String> result = new LinkedList<String>();
         String inputLine = input.readLine();
         while (inputLine != null) {
             inputLine = ConfigParser.stripComments(inputLine).trim();
diff --git a/apps/addressbook/java/src/net/i2p/addressbook/Daemon.java b/apps/addressbook/java/src/net/i2p/addressbook/Daemon.java
index 968be7268..d22ac7534 100644
--- a/apps/addressbook/java/src/net/i2p/addressbook/Daemon.java
+++ b/apps/addressbook/java/src/net/i2p/addressbook/Daemon.java
@@ -251,7 +251,7 @@ public class Daemon {
         }
         delay *= 60 * 60 * 1000;
         
-        List<String> defaultSubs = new LinkedList();
+        List<String> defaultSubs = new LinkedList<String>();
         // defaultSubs.add("http://i2p/NF2RLVUxVulR3IqK0sGJR0dHQcGXAzwa6rEO4WAWYXOHw-DoZhKnlbf1nzHXwMEJoex5nFTyiNMqxJMWlY54cvU~UenZdkyQQeUSBZXyuSweflUXFqKN-y8xIoK2w9Ylq1k8IcrAFDsITyOzjUKoOPfVq34rKNDo7fYyis4kT5bAHy~2N1EVMs34pi2RFabATIOBk38Qhab57Umpa6yEoE~rbyR~suDRvD7gjBvBiIKFqhFueXsR2uSrPB-yzwAGofTXuklofK3DdKspciclTVzqbDjsk5UXfu2nTrC1agkhLyqlOfjhyqC~t1IXm-Vs2o7911k7KKLGjB4lmH508YJ7G9fLAUyjuB-wwwhejoWqvg7oWvqo4oIok8LG6ECR71C3dzCvIjY2QcrhoaazA9G4zcGMm6NKND-H4XY6tUWhpB~5GefB3YczOqMbHq4wi0O9MzBFrOJEOs3X4hwboKWANf7DT5PZKJZ5KorQPsYRSq0E3wSOsFCSsdVCKUGsAAAA/i2p/hosts.txt");
         defaultSubs.add("http://www.i2p2.i2p/hosts.txt");
         
@@ -331,7 +331,7 @@ public class Daemon {
             homeFile = new SecureDirectory(System.getProperty("user.dir"));
         }
         
-        Map<String, String> defaultSettings = new HashMap();
+        Map<String, String> defaultSettings = new HashMap<String, String>();
         defaultSettings.put("proxy_host", "127.0.0.1");
         defaultSettings.put("proxy_port", "4444");
         defaultSettings.put("master_addressbook", "../userhosts.txt");
diff --git a/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionIterator.java b/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionIterator.java
index 22113f52e..cf7b04fc0 100644
--- a/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionIterator.java
+++ b/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionIterator.java
@@ -81,7 +81,7 @@ class SubscriptionIterator implements Iterator<AddressBook> {
             //                   DataHelper.formatDuration(I2PAppContext.getGlobalContext().clock().now() - sub.getLastFetched()) +
             //                   " ago but the minimum delay is " +
             //                   DataHelper.formatDuration(this.delay));
-            return new AddressBook(Collections.EMPTY_MAP);
+            return new AddressBook(Collections.<String, String> emptyMap());
         }
     }
 
diff --git a/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionList.java b/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionList.java
index 9b64bb316..6aab49b22 100644
--- a/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionList.java
+++ b/apps/addressbook/java/src/net/i2p/addressbook/SubscriptionList.java
@@ -69,7 +69,7 @@ class SubscriptionList {
     public SubscriptionList(File locationsFile, File etagsFile,
             File lastModifiedFile, File lastFetchedFile, long delay, List<String> defaultSubs, String proxyHost, 
             int proxyPort) {
-        this.subscriptions = new LinkedList();
+        this.subscriptions = new LinkedList<Subscription>();
         this.etagsFile = etagsFile;
         this.lastModifiedFile = lastModifiedFile;
         this.lastFetchedFile = lastFetchedFile;
@@ -84,17 +84,17 @@ class SubscriptionList {
         try {
             etags = ConfigParser.parse(etagsFile);
         } catch (IOException exp) {
-            etags = new HashMap();
+            etags = new HashMap<String, String>();
         }
         try {
             lastModified = ConfigParser.parse(lastModifiedFile);
         } catch (IOException exp) {
-            lastModified = new HashMap();
+            lastModified = new HashMap<String, String>();
         }
         try {
             lastFetched = ConfigParser.parse(lastFetchedFile);
         } catch (IOException exp) {
-            lastFetched = new HashMap();
+            lastFetched = new HashMap<String, String>();
         }
         for (String location : locations) {
             this.subscriptions.add(new Subscription(location, etags.get(location),
@@ -121,9 +121,9 @@ class SubscriptionList {
      * won't be read back correctly; the '=' should be escaped.
      */
     public void write() {
-        Map<String, String> etags = new HashMap();
-        Map<String, String>  lastModified = new HashMap();
-        Map<String, String>  lastFetched = new HashMap();
+        Map<String, String> etags = new HashMap<String, String>();
+        Map<String, String>  lastModified = new HashMap<String, String>();
+        Map<String, String>  lastFetched = new HashMap<String, String>();
         for (Subscription sub : this.subscriptions) {
             if (sub.getEtag() != null) {
                 etags.put(sub.getLocation(), sub.getEtag());