Merge pull request #465 from auth0/pro-gson

Add Java's R8 Proguard rules for Gson
auth0 · Mar 9, 2021 · 3889261 · 3889261
2 parents 4b11fd6 + 8485a77
commit 3889261
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Showing 2 changed files with 11 additions and 2 deletions.
diff --git a/proguard/proguard-gson.pro b/proguard/proguard-gson.pro
@@ -3,4 +3,12 @@
 -keepattributes Signature
 -keepattributes *Annotation*
 
--dontwarn com.google.gson.internal.UnsafeAllocator
+-dontwarn com.google.gson.internal.UnsafeAllocator
+
+#R8
+# - See https://r8.googlesource.com/r8/+/refs/heads/master/compatibility-faq.md
+# - See https://medium.com/@harryaung/mysterious-null-crash-with-gson-serializedname-fields-when-r8-proguard-is-on-f8a4bd036e34
+-keepclassmembers,allowobfuscation class * {
+  @com.google.gson.annotations.SerializedName <fields>;
+}
+-keep,allowobfuscation @interface com.google.gson.annotations.SerializedName
diff --git a/sample/build.gradle b/sample/build.gradle
@@ -23,8 +23,9 @@ android {
     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig debug.signingConfig
         }
     }
     testOptions {