MPChartLib/src/main/java/com/github/mikephil/charting/renderer/BarChartRenderer.java

@@ -144,7 +144,7 @@ public class BarChartRenderer extends BarLineScatterCandleBubbleRenderer {
 
         trans.pointValuesToPixel(buffer.buffer);
 
-        final boolean isCustomFill = dataSet.getFills() != null && !dataSet.getFills().isEmpty();
+        final boolean isCustomFill = dataSet.getFills().size() > 0;
         final boolean isSingleColor = dataSet.getColors().size() == 1;
         final boolean isInverted = mChart.isInverted(dataSet.getAxisDependency());
 

MPChartLib/src/main/java/com/github/mikephil/charting/renderer/HorizontalBarChartRenderer.java

@@ -112,7 +112,7 @@ public class HorizontalBarChartRenderer extends BarChartRenderer {
 
         trans.pointValuesToPixel(buffer.buffer);
 
-        final boolean isCustomFill = dataSet.getFills() != null && !dataSet.getFills().isEmpty();
+        final boolean isCustomFill = dataSet.getFills().size() > 0;
         final boolean isSingleColor = dataSet.getColors().size() == 1;
         final boolean isInverted = mChart.isInverted(dataSet.getAxisDependency());
 

build.gradle

@@ -2,7 +2,6 @@ buildscript {
     repositories {
         jcenter()
         google()
-        maven { url 'https://jitpack.io' }
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.4.0'