Add (failing) test for #2527

src/test/java/com/fasterxml/jackson/failing/IsGetterRenaming2527Test.java

@@ -0,0 +1,37 @@
+package com.fasterxml.jackson.failing;
+
+import java.util.Collections;
+import java.util.Map;
+
+import com.fasterxml.jackson.databind.*;
+
+// [databind#2527] Support Kotlin-style "is" properties
+public class IsGetterRenaming2527Test extends BaseMapTest
+{
+    static class POJO2527 {
+        private boolean isEnabled;
+
+        protected POJO2527() { }
+        public POJO2527(boolean b) {
+            isEnabled = b;
+        }
+
+        public boolean getEnabled() { return isEnabled; }
+        public void setEnabled(boolean b) { isEnabled = b; }
+    }
+
+    private final ObjectMapper MAPPER = newJsonMapper();
+
+    public void testIsProperties() throws Exception
+    {
+        POJO2527 input = new POJO2527(true);
+        final String json = MAPPER.writeValueAsString(input);
+
+        Map<?, ?> props = MAPPER.readValue(json, Map.class);
+        assertEquals(Collections.singletonMap("isEnabled", Boolean.TRUE),
+                props);
+
+        POJO2527 output = MAPPER.readValue(json, POJO2527.class);
+        assertEquals(input.isEnabled, output.isEnabled);
+    }
+}