WireType.JSON_ONLY incorrectly parses nested maps #844 (#846)

src/main/java/net/openhft/chronicle/wire/JSONWire.java

@@ -1136,6 +1136,7 @@ private Object parseType() throws InvalidMarshallableException {
                 final Class<?> clazz = classLookup().forName(sb.subSequence(1, sb.length()));
                 Object object = parseType(null, clazz, true);
                 consume('}');
+                consumePadding(1);
                 return object;
             }
         }

src/test/java/net/openhft/chronicle/wire/issue/Issue844Test.java

@@ -0,0 +1,48 @@
+package net.openhft.chronicle.wire.issue;
+
+import net.openhft.chronicle.wire.WireTestCommon;
+import net.openhft.chronicle.wire.WireType;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class Issue844Test extends WireTestCommon {
+
+    @Test
+    public void nestedMapsJson() {
+
+        // at least 3 levels of nested to reproduce this issue
+        Object o2 = WireType.JSON_ONLY.fromString("\"serviceConfig\": {\n" +
+                "  \"db\": {\n" +
+                "    \"a\": {\n" +
+                "      \"Hello\": \"World\"\n" +
+                "    },\n" +
+                "    \"mongodb\": {\n" +
+                "      \"@net.openhft.chronicle.wire.issue.Issue844Test$Enum\": \"INSTANCE\"\n" +
+                "    },\n" +
+                "    \"collection\": \"ladder\"\n" +
+                "  }\n" +
+                "}");
+        assertEquals(
+                "serviceConfig: {\n" +
+                        "  db: {\n" +
+                        "    a: {\n" +
+                        "      Hello: World\n" +
+                        "    },\n" +
+                        "    mongodb: !net.openhft.chronicle.wire.issue.Issue844Test$Enum INSTANCE,\n" +
+                        "    collection: ladder\n" +
+                        "  }\n" +
+                        "}\n",
+                WireType.YAML_ONLY.asString(o2));
+        assertEquals(
+                "{\"serviceConfig\":{\"db\":{\"a\":{\"Hello\":\"World\"},\"mongodb\":{\"@net.openhft.chronicle.wire.issue.Issue844Test$Enum\":\"INSTANCE\"},\"collection\":\"ladder\"}}}",
+                WireType.JSON_ONLY.asString(o2)
+        );
+    }
+
+
+    public enum Enum {
+        INSTANCE
+    }
+
+}