You can use this link instead :

**[DOWNLOAD v2.9.7][1]**

**[More General Link][2]**

Or goto [http://mvnrepository.com/][3]   and search for [&#39;jackson-core&#39;][4] .


  [1]: http://central.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.9.7/jackson-core-2.9.7.jar
  [2]: http://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core
  [3]: http://mvnrepository.com/
  [4]: http://mvnrepository.com/search?q=jackson-core

If you click &quot;Download&quot; at the right edge of the screen, scroll down to &quot;Downloads, 2.x&quot; and click &quot;Core&quot;, you&#39;ll get the direct download.


[Here][1] you can find the jackson libraries (version 2.4.0). I got these project from a tutorial where you can see how to implement jackson and the code and libraries are available to download too:
http://www.ibm.com/developerworks/java/library/j-hangman-app/index.html


  [1]: https://hub.jazz.net/project/morenoli/hangmangame/overview?utm_source=developerWorks&amp;utm_medium=article&amp;utm_content=j-hangman-app&amp;utm_campaign=dW%20CloudOE%20content#https://hub.jazz.net/gerrit/plugins/gerritfs/list/morenoli%252Fhangmangame/refs%252Fheads%252Fmaster/WebContent/WEB-INF/lib

Next alternative link : http://www.java2s.com/Code/Jar/j/Downloadjacksonall199jar.htm

You can find here the &quot;AllIn&quot; jars with complete list of included files. But latest version here is 1.9.9. so...

Please try
[/repositories/snapshots/com/fasterxml/jackson/core][1]


  [1]: https://oss.sonatype.org/content/repositories/snapshots/com/fasterxml/jackson/core/

Goto relevant directory

 - jackson-annotations/	 
 - jackson-core/	 
 - jackson-databind/

Then open maven-metadata.xml file. You can find the directory of latest version there. Please note that all jars renamed with release date.

I know this question is 4 years old, but the Jackson library is still very hard to find, and even though Sujith PS&#39; answer here leads to the core jar, that was not enough for me.

For anyone who&#39;s looking for the jar files for **Core**, **Databind** and **Annotations**, I found them here:

**http://mvnrepository.com/artifact/com.fasterxml.jackson.core**

Specifically for version 2.7.4:

[jackson-core-2.7.4.jar][1]

[jackson-databind-2.7.4.jar][2]

[jackson-annotations-2.7.4.jar][3]


  [1]: http://central.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.7.4/jackson-core-2.7.4.jar
  [2]: http://central.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.7.4/jackson-databind-2.7.4.jar
  [3]: http://central.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.7.4/jackson-annotations-2.7.4.jar

So if I have a class:

     class Person(object):
    &#39;&#39;&#39;A class with several methods that revolve around a person&#39;s Name and Age.&#39;&#39;&#39;

        def __init__(self, name = &#39;Jane Doe&#39;, year = 2012):
            &#39;&#39;&#39;The default constructor for the Person class.&#39;&#39;&#39;
            self.n = name
            self.y = year

And then this subclass:

     class Instructor(Person):
    &#39;&#39;&#39;A subclass of the Person class, overloads the constructor with a new parameter.&#39;&#39;&#39;
         def __init__(self, name, year, degree):
             Person.__init__(self, name, year)

I&#39;m a bit lost on how to get the subclass to call and use the parent class constructor for `name` and `year`, while adding the new parameter `degree` in the subclass.

Calling a parent class constructor from a child class in python

I read about  child actions in MVC (fundamental book), but I don&#39;t really know what it is?

Could some one please explain these methods?

What is an MVC child action?

I need to download a json parser so I go to the [jackson.codehaus.org][1] website. Instead of a convenient link to click and download the jar/jars, they have me going in circles. Does anyone know where the jars are -- exactly?


  [1]: http://jackson.codehaus.org

downloading jackson.codehaus.org jar

<p>I need to download a json parser so I go to the <a href="http://jackson.codehaus.org" target="_blank" rel="noopener noreferrer">jackson.codehaus.org</a> website. Instead of a convenient link to click and download the jar/jars, they have me going in circles. Does anyone know where the jars are -- exactly?</p>


I have a JSON response from the Facebook API that looks like this:

    {
      &quot;data&quot;: [
         {
           &quot;name&quot;: &quot;Barack Obama&quot;, 
           &quot;category&quot;: &quot;Politician&quot;, 
           &quot;id&quot;: &quot;6815841748&quot;
         }, 
         {
           &quot;name&quot;: &quot;Barack Obama&#39;s Dead Fly&quot;, 
           &quot;category&quot;: &quot;Public figure&quot;, 
           &quot;id&quot;: &quot;92943557739&quot;
         }]
     }

I want to apply JSONPath to it to only return results with a category of &quot;Politician&quot;. From what I&#39;ve read, it appears that I need to do:

    $.data[?(@.category==&#39;Politician&#39;)]

but according to the [testing tool](http://jsonpath.curiousconcept.com/) I found, this doesn&#39;t work. I found [another question](https://stackoverflow.com/questions/5560455/using-jsonpath-looking-for-a-string) which suggests that I should use &quot;eq&quot; instead of &quot;==&quot;, but that doesn&#39;t work either. What am I getting wrong here?

How to filter by string in JSONPath?

I have used this method,


        
    NSDictionary *jsonObject=[NSJSONSerialization 
           JSONObjectWithData:jsonData 
                      options:NSJSONReadingMutableLeaves 
                        error:nil];
    NSLog(@&quot;jsonObject is %@&quot;,jsonObject);

It&#39;s printing &quot;jsonObject is null&quot;.  
Is there any problem with &quot;error:nil&quot;.  
I am not using any url or connection methods.  
I have a json file and I want to display it in a table.

How to convert JSON serialized data to NSDictionary

Does anyone know what is the limit on the size of JSON data type in PostgreSQL 9.2?

Size limit of JSON data type in PostgreSQL

I&#39;m trying to read a Json string in C#, but I&#39;m having trouble figuring out just how to parse the string into C#. Say I have the following Json string

    [
        {
            &quot;AppName&quot;: {
                &quot;Description&quot;: &quot;Lorem ipsum dolor sit amet&quot;,
                &quot;Value&quot;: &quot;1&quot;
            },
            &quot;AnotherAppName&quot;: {
                &quot;Description&quot;: &quot;consectetur adipisicing elit&quot;,
                &quot;Value&quot;: &quot;String&quot;
            },
            &quot;ThirdAppName&quot;: {
                &quot;Description&quot;: &quot;sed do eiusmod tempor incididunt ut labore et dolore magna aliqua&quot;,
                &quot;Value&quot;: &quot;Text&quot;
            },
            &quot;Application&quot;: {
                &quot;Description&quot;: &quot;Ut enim ad minim veniam&quot;,
                &quot;Value&quot;: &quot;100&quot;
            },
            &quot;LastAppName&quot;: {
                &quot;Description&quot;: &quot;quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat&quot;,
                &quot;Value&quot;: &quot;ZZZ&quot;
            }
        }
    ]

I want to parse that into an arraylist or dictionary, using a format like

    descriptionList[&quot;AppName&quot;] = &quot;Lorem ipsum dolor sit amet&quot;;
    valueList[&quot;AppName&quot;] = &quot;1&quot;;

I&#39;ve been toying around with Json.Net but the examples I&#39;ve seen don&#39;t give me a clear idea of how I should do this. What&#39;s the best way to achieve this? Cant this be done like in jQuery, using a foreach statement? 

Parse Json string in C#

Can someone explain in an easy way how to make jQuery send actual JSON instead of a query string?

    $.ajax({
        url      : url,
        dataType : &#39;json&#39;, // I was pretty sure this would do the trick
        data     : data,
        type     : &#39;POST&#39;,
        complete : callback // etc
    });

This will in fact convert your carefully prepared JSON to a query string. One of the annoying things is that any `array: []` in your object will be converted to `array[]: []`, probably because of limitations of the query sting.

How to send JSON instead of a query string with $.ajax?

I need to write a project that&#39;s only compatible with Java 1.5. I have Java 1.6 installed. Is there some form of backwards compatibility to get Eclipse to compile with 1.5?

Do I have to install Java 1.5 to get it to show here? Or maybe there is another way?

![Enter image description here][1].

  [1]: http://i.stack.imgur.com/P0tcw.png


How to change JDK version for an Eclipse project

I have a Maven project which generates a jar file and copies all dependencies to `target/lib` folder.  I want to execute this project on client&#39;s machine (windows).  So, I copied `myproject.jar` to `C:\xyz` folder and all dependencies to `C:\xyz\lib` folder.  How do I execute this project from client&#39;s command prompt?
I tried to use `java -cp lib\*.jar -jar myproject.jar` from `C:\xyz` folder but it throws following error.

    Exception in thread &quot;main&quot; java.lang.NoClassDefFoundError: lib\commons-codec-1/3/jar
    Caused by: java.lang.ClassNotFoundException: lib\commons-codec-1.3.jar
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
    Could not find the main class: lib\commons-codec-1.3.jar.  Program will exit.

I think if I specify all dependencies in classpath (like `java -cp lib\dep1.jar;dep2.jar`), it will get rid of the problem but I don&#39;t want to do this as I have 40 libraries already and it might grow in future releases.  Is there a better way to do this?

Execute jar file with multiple classpath libraries from command prompt

I&#39;m trying to load a jar using

    @echo off
    java -jar Test.jar
    pause

With the manifest of 

    Manifest-Version: 1.0
    Main-Class: classes.TestClass

In the Jar directory, I can clearly see a classes\TestClass file when I extract it.

Edit: `classes.TestClass` does have a `public static void main(String[] args)`. 

Package Deceleration in `classes.TestClass` is `package classes;`

But I still keep getting the error message 

    Could not find or load main class classes.TestClass

I&#39;ve been through everything I&#39;ve been able to find with this problem, and none of it seems to help.

I&#39;ve tried editing the classpath, redoing the manifest, installing the new JRE. 

What else should I be doing? 

Could not find or load main class with a Jar File

I found the maven-shade-plugin being used in someone&#39;s pom.xml. I&#39;ve never used maven-shade-plugin before (and I&#39;m a Maven n00b) so I tried to understand the reason for using this and what it does. 

I looked at the [Maven docs][1], however I can&#39;t understand this statement:

&gt; This plugin provides the capability to package the artifact in an uber-jar, including its dependencies and to shade - i.e. rename - the packages of some of the dependencies.

The documentation on the page doesn&#39;t seem very newbie-friendly.

What is an &quot;uber jar?&quot; Why would someone want to make one? What&#39;s the point of renaming the packages of the dependencies? I tried to go through the examples on the maven-shade-plugin apache page such as &quot;Selecting contents for Uber Jar,&quot; but I still can&#39;t understand what is being accomplished with &quot;shading.&quot;

Any pointers to illustrative examples/use-cases (with an explanation of why shading was required in this case - what problem is it solving) would be appreciated. Lastly, when should I use the maven-shade-plugin?

[1]: http://maven.apache.org/plugins/maven-shade-plugin

What is the maven-shade-plugin used for, and why would you want to relocate Java packages?

When starting the application or compiling JSP via ant, Tomcat 7 Jasper complains about superfluous or misplaced JAR file. I got below message 
   
    **compile-jsp:**
       [jasper] Jul 31, 2012 7:15:15 PM org.apache.jasper.compiler.TldLocationsCache tldScanJar
       [jasper] INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 

how to Skipping unneeded JARs during scanning can improve startup time and JSP compilation time in tomcat?

how to enable better output?


How to fix JSP compiler warning: one JAR was scanned for TLDs yet contained no TLDs?

This bean &#39;State&#39; :

    public class State {
    	
    	private boolean isSet;
    
    	@JsonProperty(&quot;isSet&quot;)
    	public boolean isSet() {
    		return isSet;
    	}
    
    	@JsonProperty(&quot;isSet&quot;)
    	public void setSet(boolean isSet) {
    		this.isSet = isSet;
    	}
    
    }

is sent over the wire using the ajax &#39; success&#39; callback : 

			success : function(response) {	
				if(response.State.isSet){	
					alert(&#39;success called successfully)
				}
				
Is the annotation @JsonProperty required here ? What is the advantage of using it ?
I think I can remove this annotation without causing any side effects.

Reading about this annotion on https://github.com/FasterXML/jackson-annotations/wiki/Jackson-Annotations I don&#39;t know when this is required to be used ?

When is the @JsonProperty property used and what is it used for?

I have a spring webservice that returns a json response. I&#39;m using the example given here to create the service:
http://www.mkyong.com/spring-mvc/spring-3-mvc-and-json-example/

The format the json is returned in is:
{&quot;name&quot;:null,&quot;staffName&quot;:[&quot;kfc-kampar&quot;,&quot;smith&quot;]}

I want to remove any null objects from the returned response so it looks like this:
{&quot;staffName&quot;:[&quot;kfc-kampar&quot;,&quot;smith&quot;]}

I&#39;ve found similar questions asked here but I&#39;ve been able to get a solution working e.g.
 
https://stackoverflow.com/questions/7854030/configurating-objectmapper-in-spring

https://stackoverflow.com/questions/10650196/how-to-configure-mmppingjacksonhttpmessageconverter-while-using-spring-annotatio

https://stackoverflow.com/questions/6177913/configuring-the-jacksonobjectmapper-not-working-in-spring-mvc-3

https://stackoverflow.com/questions/6049523/how-to-configure-spring-mvc-3-to-not-return-null-object-in-json-response

https://stackoverflow.com/questions/4823358/spring-configure-responsebody-json-format

https://stackoverflow.com/questions/11392944/jacksonspring3-0-5-custom-object-mapper

From reading through these and other sources, I figured the cleanest way to achieve what I wanted was to use Spring 3.1 and the message-converters that can be configured within the mvc-annotation. 
My updated spring config file is:

    &lt;beans xmlns=&quot;http://www.springframework.org/schema/beans&quot;
	xmlns:context=&quot;http://www.springframework.org/schema/context&quot;
	xmlns:mvc=&quot;http://www.springframework.org/schema/mvc&quot; 
	xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
	xsi:schemaLocation=&quot;
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd&quot;&gt;

	&lt;context:component-scan base-package=&quot;com.mkyong.common.controller&quot; /&gt;

	&lt;mvc:annotation-driven&gt;
	    &lt;mvc:message-converters&gt;
	        &lt;bean class=&quot;org.springframework.http.converter.json.MappingJacksonHttpMessageConverter&quot;&gt;
	            &lt;property name=&quot;prefixJson&quot; value=&quot;true&quot; /&gt;
			    &lt;property name=&quot;supportedMediaTypes&quot; value=&quot;application/json&quot; /&gt;
	            &lt;property name=&quot;objectMapper&quot;&gt;
        			&lt;bean class=&quot;org.codehaus.jackson.map.ObjectMapper&quot;&gt;
            			&lt;property name=&quot;serializationInclusion&quot; value=&quot;NON_NULL&quot;/&gt;
        			&lt;/bean&gt;
    			&lt;/property&gt;
	        &lt;/bean&gt;
	    &lt;/mvc:message-converters&gt;
	&lt;/mvc:annotation-driven&gt;

&lt;/beans&gt;

The service class is the same as given on the mkyong.com site, except I commented out the setting of the Shop name variable so it&#39;s null i.e.

    @Controller
    @RequestMapping(&quot;/kfc/brands&quot;)
    public class JSONController {
	    @RequestMapping(value=&quot;{name}&quot;, method = RequestMethod.GET)
	    @ResponseStatus(HttpStatus.OK) 
	    public @ResponseBody Shop getShopInJSON(@PathVariable String name) {
		    Shop shop = new Shop();
		    //shop.setName(name);
		    shop.setStaffName(new String[]{name, &quot;cronin&quot;});
		    return shop;
	    }
    }

The Jackson jars I&#39;m using are jackson-mapper-asl 1.9.0 and jackson-core-asl 1.9.0. These are the only new jars I&#39;ve added to the pom as provided as part of the spring-json project I downloaded from mkyong.com.

The project builds successfully, but when I invoke the service through the browser I still get the same thing i.e.
{&quot;name&quot;:null,&quot;staffName&quot;:[&quot;kfc-kampar&quot;,&quot;smith&quot;]}

Can anyone tell me where I&#39;m going wrong with my configuration? 

I&#39;ve tried several other options, but the only way I&#39;ve been able to return the json in the correct format is to add the Object mapper to the JSONController and have the &quot;getShopInJSON&quot; method return a string i.e.

    public @ResponseBody String getShopInJSON(@PathVariable String name) throws JsonGenerationException, JsonMappingException, IOException {
		ObjectMapper mapper = new ObjectMapper();
		mapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
		
		Shop shop = new Shop();
		//shop.setName(name);
		shop.setStaffName(new String[]{name, &quot;cronin&quot;});
		String test = mapper.writeValueAsString(shop);
		return test;
	}

Now if I invoke the service I get the expected i.e.
{&quot;staffName&quot;:[&quot;kfc-kampar&quot;,&quot;cronin&quot;]}

I&#39;ve also been able to get it to work using the @JsonIgnore annotation, but this solution isn&#39;t suitable for me.

I don&#39;t understand why it&#39;s working in code but not in the configuration, so any help would be fantastic.



Spring REST Service: how to configure to remove null objects in json response

I am using Jackson and I&#39;m having problems, when I try to deserialize an Object I get the following error:

    com.fasterxml.jackson.databind.JsonMappingException: 
        Can not construct instance of net.MyAbstractClass, 
        problem: abstract types either need to be mapped to concrete types, 
            have custom deserializer, or be instantiated with additional type information

I am having problems in the attribute:

    @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.WRAPPER_OBJECT, property = &quot;@id&quot;)
    @JsonSubTypes({ @JsonSubTypes.Type(value = MyAbstractClass.class, name = &quot;MyAbstractClass&quot;) })
    @ManyToOne
    private MyAbstractClass object;


Could anyone help me?

Cannot construct instance of - Jackson

I want to use jackson to convert a ArrayList to a JsonArray. 

**Event.java** : this is the java bean class with two fields &quot;field1&quot;, &quot;field2&quot; mapped as JsonProperty.

My goal is:

Convert

    ArrayList&lt;Event&gt; list = new ArrayList&lt;Event&gt;();
        list.add(new Event(&quot;a1&quot;,&quot;a2&quot;));
        list.add(new Event(&quot;b1&quot;,&quot;b2&quot;));

To 

    [
    {&quot;field1&quot;:&quot;a1&quot;, &quot;field&quot;:&quot;a2&quot;},
    {&quot;field1&quot;:&quot;b1&quot;, &quot;field&quot;:&quot;b2&quot;}
    ]

The way I can think of is:
**writeListToJsonArray()**:

    public void writeListToJsonArray() throws IOException {  
        ArrayList&lt;Event&gt; list = new ArrayList&lt;Event&gt;();
        list.add(new Event(&quot;a1&quot;,&quot;a2&quot;));
        list.add(new Event(&quot;b1&quot;,&quot;b2&quot;));
        
        OutputStream out = new ByteArrayOutputStream();

        JsonFactory jfactory = new JsonFactory();
        JsonGenerator jGenerator = jfactory.createJsonGenerator(out, JsonEncoding.UTF8);
        ObjectMapper mapper = new ObjectMapper();
        jGenerator.writeStartArray(); // [

        for (Event event : list) {
            String e = mapper.writeValueAsString(event);
            jGenerator.writeRaw(usage);
            // here, big hassles to write a comma to separate json objects, when the last object in the list is reached, no comma 
        }

        jGenerator.writeEndArray(); // ]

        jGenerator.close();
        
        System.out.println(out.toString());
    }

I am looking for something like:

    generator.write(out, list)  
this directly convert the list to json array format and then write it to outputstream &quot;out&quot;.

even greedier:

    generator.write(out, list1)
    
    generator.write(out, list2)

this will just convert/add in the list1, list2 into a single json array. then write it to &quot;out&quot;

Jackson - best way writes a java list to a json array

Im using Jackson to convert a POJO into a JSON to store in the DB. However I have a getter that I want to ignore. I have see a lot of info relating to @JsonIgnoreProperties but I can&#39;t seem to make any progress with it. I basically want the equivalent of @Transient.

Basic usecase (I want to ignore the InternationalNumber):

    public class PhoneNumber {

    private String country;
    private String number;

    public PhoneNumber() {}

    public String getCountry() {
        return country;
    }

    public String getLocalNumber() {
        return localNumber;
    }
    
    public String getInternationalNumber() {
        String result = &quot;Not Available&quot;;
        if (country != null &amp;&amp; localNumber != null) {
        result = new PhoneNumberHandler().internationalFormat(
                localNumber, WorldCountries.countryToIso2Code(country));
        }
        return result;
    }

    }

Content Type	Original Author	Original Content on Stackoverflow
Question	kasavbere	View Question on Stackoverflow
Solution 1 - Json	Sujith PS	View Answer on Stackoverflow
Solution 2 - Json	Joachim Isaksson	View Answer on Stackoverflow
Solution 3 - Json	li_developer	View Answer on Stackoverflow
Solution 4 - Json	Daniel Perník	View Answer on Stackoverflow
Solution 5 - Json	Prasanna Sujeewa	View Answer on Stackoverflow
Solution 6 - Json	parachutingturtle	View Answer on Stackoverflow

downloading jackson.codehaus.org jar

Json Problem Overview

Json Solutions

Solution 1 - Json

Solution 2 - Json

Solution 3 - Json

Solution 4 - Json

Solution 5 - Json

Solution 6 - Json

What is an MVC child action?

Calling a parent class constructor from a child class in python

Attributions