Implement equals() and hashCode() for permissions.

guacamole-ext/src/main/java/net/sourceforge/guacamole/net/auth/permission/GuacamoleConfigurationDirectoryPermission.java

@@ -66,4 +66,26 @@ public class GuacamoleConfigurationDirectoryPermission
         return type;
     }
 
+    @Override
+    public int hashCode() {
+        return type.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+
+        // Not equal if null or wrong type
+        if (obj == null) return false;
+        if (getClass() != obj.getClass()) return false;
+
+        final GuacamoleConfigurationDirectoryPermission other =
+                (GuacamoleConfigurationDirectoryPermission) obj;
+
+        // Compare types
+        if (type != other.type)
+            return false;
+
+        return true;
+    }
+
 }

guacamole-ext/src/main/java/net/sourceforge/guacamole/net/auth/permission/GuacamoleConfigurationPermission.java

@@ -86,4 +86,36 @@ public class GuacamoleConfigurationPermission
         return type;
     }
 
+    @Override
+    public int hashCode() {
+        int hash = 5;
+        if (identifier != null) hash = 47 * hash + identifier.hashCode();
+        if (type != null)       hash = 47 * hash + type.hashCode();
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+
+        // Not equal if null or wrong type
+        if (obj == null) return false;
+        if (getClass() != obj.getClass()) return false;
+
+        final GuacamoleConfigurationPermission other =
+                (GuacamoleConfigurationPermission) obj;
+
+        // Not equal if different type
+        if (this.type != other.type)
+            return false;
+
+        // If null identifier, equality depends on whether other identifier
+        // is null
+        if (identifier == null)
+            return other.identifier != null;
+
+        // Otherwise, equality depends entirely on identifier
+        return identifier.equals(other.identifier);
+
+    }
+
 }

guacamole-ext/src/main/java/net/sourceforge/guacamole/net/auth/permission/UserDirectoryPermission.java

@@ -64,4 +64,25 @@ public class UserDirectoryPermission implements SystemPermission {
         return type;
     }
 
+    @Override
+    public int hashCode() {
+        return type.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+
+        // Not equal if null or wrong type
+        if (obj == null) return false;
+        if (getClass() != obj.getClass()) return false;
+
+        final UserDirectoryPermission other = (UserDirectoryPermission) obj;
+
+        // Compare types
+        if (type != other.type)
+            return false;
+
+        return true;
+    }
+
 }

guacamole-ext/src/main/java/net/sourceforge/guacamole/net/auth/permission/UserPermission.java

@@ -82,4 +82,35 @@ public class UserPermission implements ObjectPermission<String> {
         return type;
     }
 
+    @Override
+    public int hashCode() {
+        int hash = 5;
+        if (identifier != null) hash = 47 * hash + identifier.hashCode();
+        if (type != null)       hash = 47 * hash + type.hashCode();
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+
+        // Not equal if null or wrong type
+        if (obj == null) return false;
+        if (getClass() != obj.getClass()) return false;
+
+        final UserPermission other = (UserPermission) obj;
+
+        // Not equal if different type
+        if (this.type != other.type)
+            return false;
+
+        // If null identifier, equality depends on whether other identifier
+        // is null
+        if (identifier == null)
+            return other.identifier != null;
+
+        // Otherwise, equality depends entirely on identifier
+        return identifier.equals(other.identifier);
+
+    }
+
 }