diff -r 000000000000 -r 6474c204b198 mobile/android/base/tokenserver/TokenServerException.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/tokenserver/TokenServerException.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,89 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.tokenserver;
+
+import java.util.List;
+
+import org.mozilla.gecko.sync.ExtendedJSONObject;
+
+public class TokenServerException extends Exception {
+  private static final long serialVersionUID = 7185692034925819696L;
+
+  public final List<ExtendedJSONObject> errors;
+
+  public TokenServerException(List<ExtendedJSONObject> errors) {
+    super();
+    this.errors = errors;
+  }
+
+  public TokenServerException(List<ExtendedJSONObject> errors, String string) {
+    super(string);
+    this.errors = errors;
+  }
+
+  public TokenServerException(List<ExtendedJSONObject> errors, Throwable e) {
+    super(e);
+    this.errors = errors;
+  }
+
+  public static class TokenServerConditionsRequiredException extends TokenServerException {
+    private static final long serialVersionUID = 7578072663150608399L;
+
+    public final ExtendedJSONObject conditionUrls;
+
+    public TokenServerConditionsRequiredException(ExtendedJSONObject urls) {
+      super(null);
+      this.conditionUrls = urls;
+    }
+  }
+
+  public static class TokenServerInvalidCredentialsException extends TokenServerException {
+    private static final long serialVersionUID = 7578072663150608398L;
+
+    public TokenServerInvalidCredentialsException(List<ExtendedJSONObject> errors) {
+      super(errors);
+    }
+
+    public TokenServerInvalidCredentialsException(List<ExtendedJSONObject> errors, String message) {
+      super(errors, message);
+    }
+  }
+
+  public static class TokenServerUnknownServiceException extends TokenServerException {
+    private static final long serialVersionUID = 7578072663150608397L;
+
+    public TokenServerUnknownServiceException(List<ExtendedJSONObject> errors) {
+      super(errors);
+    }
+
+    public TokenServerUnknownServiceException(List<ExtendedJSONObject> errors, String message) {
+      super(errors, message);
+    }
+  }
+
+  public static class TokenServerMalformedRequestException extends TokenServerException {
+    private static final long serialVersionUID = 7578072663150608396L;
+
+    public TokenServerMalformedRequestException(List<ExtendedJSONObject> errors) {
+      super(errors);
+    }
+
+    public TokenServerMalformedRequestException(List<ExtendedJSONObject> errors, String message) {
+      super(errors, message);
+    }
+  }
+
+  public static class TokenServerMalformedResponseException extends TokenServerException {
+    private static final long serialVersionUID = 7578072663150608395L;
+
+    public TokenServerMalformedResponseException(List<ExtendedJSONObject> errors, String message) {
+      super(errors, message);
+    }
+
+    public TokenServerMalformedResponseException(List<ExtendedJSONObject> errors, Throwable e) {
+      super(errors, e);
+    }
+  }
+}