2.0.3 release.

ChangeLog.txt

@@ -1,3 +1,10 @@
+---------------------------------------------
+2.0.3 (2016-05-07)
+- Fix Bad JSON error on ProGuard optimized APKs when deserializing error responses.
+  - All 2.0.x versions before 2.0.3 are affected and should be upgraded immediately.
+  - Only affects Android apps that enable ProGuard.
+  - Affected apps may crash when deserializing an error response from Dropbox servers.
+
 ---------------------------------------------
 2.0.2 (2016-04-28)
 - Update to latest API specs:

ReadMe.md

@@ -14,7 +14,7 @@ If you're using Maven, then edit your project's "pom.xml" and add this to the `<
 <dependency>
     <groupId>com.dropbox.core</groupId>
     <artifactId>dropbox-core-sdk</artifactId>
-    <version>2.0.2</version>
+    <version>2.0.3</version>
 </dependency>
 ```
 
@@ -23,7 +23,7 @@ If you are using Gradle, then edit your project's "build.gradle" and add this to
 ```groovy
 dependencies {
     // ...
-    compile 'com.dropbox.core:dropbox-core-sdk:2.0.2'
+    compile 'com.dropbox.core:dropbox-core-sdk:2.0.3'
 }
 ```
 
@@ -183,3 +183,5 @@ Jackson Databind makes use of reflection and annotations to map Java objects to
 -dontwarn com.fasterxml.jackson.databind.**
 -adaptresourcefilenames com/dropbox/core/http/trusted-certs.raw
 ```
+
+**IMPORTANT: If you are running version 2.0.x before 2.0.3, you should update to the latest Dropbox SDK version to avoid a deserialization bug that can cause Android apps that use ProGuard to crash.**

examples/android/build.gradle

@@ -23,7 +23,7 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "23.0.2"
+    buildToolsVersion "23.0.3"
 
     defaultConfig {
         applicationId "com.dropbox.core.examples.android"
@@ -34,12 +34,14 @@ android {
     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
+            shrinkResources true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
         debug {
             // to debug ProGuard rules
             minifyEnabled false
+            shrinkResources false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
@@ -57,8 +59,8 @@ dependencies {
     compile 'com.android.support:appcompat-v7:23.1.1'
     compile 'com.android.support:design:23.1.1'
     compile 'com.android.support:recyclerview-v7:23.1.1'
-    compile 'com.fasterxml.jackson.core:jackson-core:2.5.4'
-    compile 'com.fasterxml.jackson.core:jackson-annotations:2.5.4'
+    compile 'com.fasterxml.jackson.core:jackson-core:2.7.1'
+    compile 'com.fasterxml.jackson.core:jackson-annotations:2.7.1'
     compile 'com.squareup.picasso:picasso:2.5.2'
     compile 'com.squareup.okhttp:okhttp:2.4.0'
 }

src/main/java/com/dropbox/core/DbxRequestUtil.java

@@ -272,6 +272,13 @@ public static ErrorWrapper fromResponse(Type errType, HttpRequestor.Response res
                 );
             ApiErrorResponse<?> apiResponse = JSON.readValue(response.getBody(), type);
 
+            // ProGuard/Dex hack: prevent ProGuard/Dex from optimizing away our @JsonCreator
+            // constructor. We add this code here instead of updating our rules to allow developers
+            // to easily fix their broken apps by updating the SDK version (see T94429).
+            if (errType == null) {
+                new ApiErrorResponse<Object>("impossible", new LocalizedText("impossible", "en_US"));
+            }
+
             return new ErrorWrapper(apiResponse.getError(), requestId, apiResponse.getUserMessage());
         }