bug fix

src/main/java/com/common/base/BaseTrustee.java

@@ -14,7 +14,6 @@ import com.trello.rxlifecycle2.RxLifecycle;
 import com.trello.rxlifecycle2.android.ActivityEvent;
 import com.trello.rxlifecycle2.android.RxLifecycleAndroid;
 
-import javax.annotation.Nonnull;
 
 import io.reactivex.Observable;
 import io.reactivex.subjects.BehaviorSubject;

src/main/java/tech/starwin/network/tools/BitmapRequestBody.java

@@ -4,7 +4,6 @@ import android.graphics.Bitmap;
 
 import java.io.IOException;
 
-import javax.annotation.Nullable;
 
 import okhttp3.MediaType;
 import okhttp3.RequestBody;
@@ -22,7 +21,6 @@ public class BitmapRequestBody extends RequestBody {
         this.format = format;
     }
 
-    @Nullable
     @Override
     public MediaType contentType() {
         if (format == Bitmap.CompressFormat.JPEG) {