Fix #106 in processor-kotlin

Author: stoyicker

processor-base/src/main/kotlin/testaccessors/internal/base/AbstractAccessorWriter.kt

@@ -44,5 +44,6 @@ abstract class AbstractAccessorWriter(
     const val PARAMETER_NAME_NEW_VALUE = "newValue"
     const val TYPE_NAME_VALUE = "T"
     const val ERROR_MESSAGE_ILLEGAL_ACCESS = "Accessing this method from this source set is not allowed"
+    const val COMMENT_ACCESS_FLAGS = "Android's implementation of Field replaces the 'modifiers' field with one called 'accessFlags'"
   }
 }

processor-kotlin/src/main/kotlin/testaccessors/internal/AccessorWriter.kt

@@ -118,7 +118,8 @@ internal class AccessorWriter(
                   element.simpleName)
               .addStatement("val wasAccessible = isAccessible")
               .addStatement("isAccessible = true")
-              .addStatement("val modifiersField = %T::class.java.getDeclaredField(\"modifiers\")", Field::class)
+              .addComment(COMMENT_ACCESS_FLAGS)
+              .addStatement("val modifiersField = %T::class.java.getDeclaredFields().first { it.name in arrayOf(\"modifiers\", \"accessFlags\") }", Field::class)
               .addStatement("val wasModifiersAccessible = modifiersField.isAccessible")
               .addStatement("modifiersField.isAccessible = true")
               .addStatement("modifiersField.setInt(this, modifiers and %T.FINAL.inv())", java.lang.reflect.Modifier::class)

sample-android/src/testJava/java/root/AndroidApplicationTest.java

@@ -90,7 +90,7 @@ public void setAStaticField() {
     field.setAccessible(true);
     final Object actual;
     try {
-      actual = field.get(subject);
+      actual = field.get(null);
     } catch (final IllegalAccessException e) {
       throw new RuntimeException(e);
     }
@@ -120,4 +120,4 @@ public void getAStaticField() {
 
     assertSame(expected, actual);
   }
-}
+}