Fix bug 612 and add two testcases (#711)

* fix bug 612

* modify fix bug 612

* modify fix bug 612, add one more testcase

Co-authored-by: CindyChow123 <CindyChow123>

json-path/src/main/java/com/jayway/jsonpath/JsonPath.java

@@ -239,11 +239,31 @@ public class JsonPath {
         notNull(jsonObject, "json can not be null");
         notNull(configuration, "configuration can not be null");
         notNull(mapFunction, "mapFunction can not be null");
+        boolean optAsPathList = configuration.containsOption(AS_PATH_LIST);
+        boolean optAlwaysReturnList = configuration.containsOption(Option.ALWAYS_RETURN_LIST);
+        boolean optSuppressExceptions = configuration.containsOption(Option.SUPPRESS_EXCEPTIONS);
+        try {
             EvaluationContext evaluationContext = path.evaluate(jsonObject, jsonObject, configuration, true);
             for (PathRef updateOperation : evaluationContext.updateOperations()) {
                 updateOperation.convert(mapFunction, configuration);
             }
             return resultByConfiguration(jsonObject, configuration, evaluationContext);
+        }catch (RuntimeException e) {
+            if (!optSuppressExceptions) {
+                throw e;
+            } else {
+                if (optAsPathList) {
+                    return (T) configuration.jsonProvider().createArray();
+                } else {
+                    if (optAlwaysReturnList) {
+                        return (T) configuration.jsonProvider().createArray();
+                    } else {
+                        return (T) (path.isDefinite() ? null : configuration.jsonProvider().createArray());
+                    }
+                }
+            }
+        }
+
     }
 
     /**

json-path/src/main/java/com/jayway/jsonpath/internal/JsonContext.java

@@ -146,8 +146,8 @@ public class JsonContext implements DocumentContext {
 
     @Override
     public DocumentContext map(JsonPath path, MapFunction mapFunction) {
-        path.map(json, mapFunction, configuration);
+        Object obj = path.map(json, mapFunction, configuration);
-        return this;
+        return obj==null ? null:this;
     }
 
     @Override

json-path/src/test/java/com/jayway/jsonpath/internal/function/Issue612.java

@@ -0,0 +1,37 @@
+package com.jayway.jsonpath.internal.function;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.jayway.jsonpath.*;
+import com.jayway.jsonpath.spi.json.JacksonJsonNodeJsonProvider;
+import com.jayway.jsonpath.spi.mapper.JacksonMappingProvider;
+import org.junit.Assert;
+import org.junit.Test;
+
+import static com.jayway.jsonpath.JsonPath.using;
+import static com.jayway.jsonpath.internal.path.PathCompiler.fail;
+
+public class Issue612 {
+    @Test
+    public void test() {
+        Configuration config = Configuration.builder()
+                .options(Option.SUPPRESS_EXCEPTIONS)
+                .build();
+        String json = "{\"1\":{\"2\":null}}";
+        DocumentContext documentContext = JsonPath.using(config).parse(json);
+        JsonPath query = JsonPath.compile("$.1.2.a.b.c");
+        Assert.assertNull(documentContext.read(query));
+        Assert.assertNull(documentContext.map(query, (object, configuration) -> object));
+    }
+    @Test(expected = Exception.class)
+    public void test2() {
+        Configuration config = Configuration.builder()
+                .build();
+        String json = "{\"1\":{\"2\":null}}";
+        DocumentContext documentContext = JsonPath.using(config).parse(json);
+        JsonPath query = JsonPath.compile("$.1.2.a.b.c");
+        documentContext.map(query, (object, configuration) -> object);
+    }
+}