Fixes a crash on devices running Android 4

Author: sdtaheri

CedarMapsSDK/build.gradle

@@ -3,7 +3,7 @@ apply plugin: 'signing'
 apply plugin: 'com.github.dcendents.android-maven'
 
 group = "com.cedarmaps"
-version = "4.2.0"
+version = "4.2.1"
 def siteUrl = 'http://cedarmaps.com'
 def gitUrl = 'http://cedarmaps.com/git'
 
@@ -18,8 +18,8 @@ android {
 
 dependencies {
     api 'com.mapbox.mapboxsdk:mapbox-android-sdk:8.4.0'
-    implementation 'com.squareup.okhttp3:okhttp:4.2.2'
-    implementation 'com.google.code.gson:gson:2.8.5'
+    implementation 'com.squareup.okhttp3:okhttp:3.12.6' //We should stop at 3.12.x since later versions run on API 21+ only
+    implementation 'com.google.code.gson:gson:2.8.6'
 }
 
 // From https://raw.github.com/mcxiaoke/gradle-mvn-push/master/gradle-mvn-push.gradle

CedarMapsSDK/src/main/java/com/cedarstudios/cedarmapssdk/AuthenticationManager.java

@@ -12,7 +12,6 @@
 import com.cedarstudios.cedarmapssdk.listeners.AccessTokenListener;
 import com.mapbox.mapboxsdk.Mapbox;
 
-import org.jetbrains.annotations.NotNull;
 import org.json.JSONObject;
 
 import java.io.IOException;
@@ -249,7 +248,7 @@ private void fetchAccessTokenFromServer(final AccessTokenListener completionHand
         client.newCall(request).enqueue(new Callback() {
 
             @Override
-            public void onResponse(@NotNull Call call, @NotNull final Response response) {
+            public void onResponse(Call call, final Response response) {
                 ResponseBody body = response.body();
                 if (body == null) {
                     handler.post(new Runnable() {
@@ -338,7 +337,7 @@ public void run() {
             }
 
             @Override
-            public void onFailure(@NotNull Call call, @NotNull final IOException e) {
+            public void onFailure(Call call, final IOException e) {
                 handler.post(new Runnable() {
                     @Override
                     public void run() {

CedarMapsSDK/src/main/java/com/cedarstudios/cedarmapssdk/CedarOkHttpClient.java

@@ -5,8 +5,6 @@
 import android.os.Build;
 import androidx.core.os.ConfigurationCompat;
 
-import org.jetbrains.annotations.NotNull;
-
 import java.io.IOException;
 import java.util.Locale;
 import java.util.concurrent.TimeUnit;
@@ -27,9 +25,8 @@ static OkHttpClient getSharedInstance(final Context applicationContext) {
                 .connectTimeout(30, TimeUnit.SECONDS)
                 .readTimeout(30, TimeUnit.SECONDS)
                 .addNetworkInterceptor(new Interceptor() {
-                    @NotNull
                     @Override
-                    public Response intercept(@NotNull Chain chain) throws IOException {
+                    public Response intercept(Chain chain) throws IOException {
                         String userAgent;
                         if (userAgent(applicationContext) != null) {
                             userAgent = userAgent(applicationContext);

README.md

@@ -38,11 +38,11 @@ Then, add this to the `build.gradle` of your **app** module:
 
 ```groovy
 dependencies {
-    implementation 'com.cedarmaps:CedarMapsSDK:4.2.0'
+    implementation 'com.cedarmaps:CedarMapsSDK:4.2.1'
 }
 ```
 
-**Note:** CedarMaps is using `AndroidX` from version `4.2.0`. The last version to support old `AppCompat` is `4.1.0`.
+**Note:** CedarMaps is using `AndroidX` from version `4.2.0`. The last version to support old `Support Library` is `4.1.0`.
 
 ### Java 8
 

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.1'
+        classpath 'com.android.tools.build:gradle:3.5.2'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
 
         // NOTE: Do not place your application dependencies here; they belong

gradle.properties

@@ -1,7 +1,7 @@
 android.enableJetifier=true
 android.useAndroidX=true
 GROUP=com.cedarmaps
-VERSION_NAME=4.2.0
+VERSION_NAME=4.2.1
 
 # Project-wide Gradle settings.