Fix issue json-path#562 and add a testcase

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

@@ -60,14 +60,14 @@ public class CompiledPath implements Path {
      *      A function with the scanner as input, or if this situation doesn't exist just the input path
      */
     private RootPathToken invertScannerFunctionRelationship(final RootPathToken path) {
-        if (path.isFunctionPath() && path.next() instanceof ScanPathToken) {
+        if (path.isFunctionPath()) {
             PathToken token = path;
             PathToken prior = null;
             while (null != (token = token.next()) && !(token instanceof FunctionPathToken)) {
                 prior = token;
             }
             // Invert the relationship $..path.function() to $.function($..path)
-            if (token instanceof FunctionPathToken) {
+            if (path.next() instanceof ScanPathToken || (prior instanceof PredicatePathToken && prior.toString().equals("[?].length()") && token != null)) {
                 prior.setNext(null);
                 path.setTail(prior);
 

json-path/src/test/java/com/jayway/jsonpath/JsonOrgJsonProviderTest.java

@@ -151,4 +151,47 @@ public class JsonOrgJsonProviderTest extends BaseTest {
         Object result = JsonPath.read(json,"$..[?(@.price == 22.99)].length()");
         assertThat(result).isEqualTo(1);
     }
+	
+    @Test
+    public void test_issue_562() {
+        String json = "{\n" +
+                "    \"store\": {\n" +
+                "        \"book\": [\n" +
+                "            {\n" +
+                "                \"category\": \"reference\",\n" +
+                "                \"author\": \"Nigel Rees\",\n" +
+                "                \"title\": \"Sayings of the Century\",\n" +
+                "                \"price\": 8.95\n" +
+                "            },\n" +
+                "            {\n" +
+                "                \"category\": \"fiction\",\n" +
+                "                \"author\": \"Evelyn Waugh\",\n" +
+                "                \"title\": \"Sword of Honour\",\n" +
+                "                \"price\": 12.99\n" +
+                "            },\n" +
+                "            {\n" +
+                "                \"category\": \"fiction\",\n" +
+                "                \"author\": \"Herman Melville\",\n" +
+                "                \"title\": \"Moby Dick\",\n" +
+                "                \"isbn\": \"0-553-21311-3\",\n" +
+                "                \"price\": 8.99\n" +
+                "            },\n" +
+                "            {\n" +
+                "                \"category\": \"fiction\",\n" +
+                "                \"author\": \"J. R. R. Tolkien\",\n" +
+                "                \"title\": \"The Lord of the Rings\",\n" +
+                "                \"isbn\": \"0-395-19395-8\",\n" +
+                "                \"price\": 22.99\n" +
+                "            }\n" +
+                "        ],\n" +
+                "        \"bicycle\": {\n" +
+                "            \"color\": \"red\",\n" +
+                "            \"price\": 19.95\n" +
+                "        }\n" +
+                "    },\n" +
+                "    \"expensive\": 10\n" +
+                "}\n";
+        Object result = JsonPath.read(json,"$.store.book[?(@.price>10)].length()");
+        assertThat(result).isEqualTo(2);
+    }
 }