org.json.simple.parser.ParseException

[Ali]

Hi there,
Just wondering, with only the jar file "json-path-0.5.3.jar", can we
start using JsonPath, or there should be other tools or plugins. I
downloaded the jar file and added to my project build path in eclipse.
Coding the follwoing, I don't get any compile error, but when I run
this, I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: org/json/
simple/parser/ParseException
at f3Underf1.XPathExample.compareWithJsonPath(XPathExample.java:88)
at f3Underf1.XPathExample.main(XPathExample.java:57)
Caused by: java.lang.ClassNotFoundException:
org.json.simple.parser.ParseException
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)
... 2 more

My code is as simple as following:
[CODE]
String jsonString = "{\"store\":\"123\"}";
List<String> authors = JsonPath.read(jsonString, "$.store");
[/CODE]

[Kalle Stenflo]

Hi,

If you use  Maven all dependencies will be included. If not, you need:

json-smart-1.0.6.3.jar

commons-lang-2.5.jar

Regards

Kalle

[Ali Sadri]

Thank you very much for your response. It worked very well.
Best Regards,
Ali Sadri.

[Kavya Subramani]

I am facing the same issue.  I have the "json_simple-1.1.jar".  I have included it in the class path too, still i am facing the NoClassDefinition found exception.  Can you please help me with it.?

[Kalle Stenflo]

Hi,

if you are using maven you just need to add this dependency.

<dependency>

    <groupId>com.jayway.jsonpath</groupId>

    <artifactId>json-path</artifactId>

    <version>0.9.1</version>

</dependency>

 

If not, below are links to jars you need.        

        

http://search.maven.org/remotecontent?filepath=org/slf4j/slf4j-api/1.7.5/slf4j-api-1.7.5.jar

http://search.maven.org/remotecontent?filepath=net/minidev/json-smart/1.2/json-smart-1.2.jar

http://search.maven.org/remotecontent?filepath=com/jayway/jsonpath/json-path/0.9.1/json-path-0.9.1.jar

JsonPath does not use json_simple it uses json_smart.

Good luck

/Kalle

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[Abhijeet Bhanjadeo]

This hit me yesterday, fews hrs lost due to this.

It's the maven (pom.xml) configuration, causing the confusion with the jar build. "json_simple-1.1.jar" has all the dependencies with in maven repository,

so just adding the dependency to pom.xml & updating project with maven dependencies should do it(Eclipse).

"maven-assembly-plugin" needs ordered before "maven-dependency-plugin"

& if you are making use of "maven-jar-plugin" then it's should be ordered before "maven-assembly-plugin".

i.e., maven-jar-plugin --> maven-assembly-plugin --> maven-dependency-plugin

Something like this:

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-jar-plugin</artifactId>

<version>${maven.jar.version}</version>

<configuration>

 <archive>

<manifest>

<mainClass>com.Startup</mainClass>

<addClasspath>true</addClasspath>

<classpathPrefix>dependency-jars/</classpathPrefix>

</manifest>

 </archive>

 <descriptorRefs>

<descriptorRef>jar-with-dependencies</descriptorRef>

</descriptorRefs>

</configuration>

</plugin>

<plugin>

<artifactId>maven-assembly-plugin</artifactId>

<version>${maven.assembly.version}</version>

<configuration>

<archive>

<manifest>

<mainClass>com.Startup</mainClass>

<addClasspath>true</addClasspath>

<classpathPrefix>dependency-jars/</classpathPrefix>

</manifest>

</archive>

<descriptorRefs>

<descriptorRef>jar-with-dependencies</descriptorRef>

</descriptorRefs>

</configuration>

</plugin>

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-dependency-plugin</artifactId>

<version>${maven.dependency.version}</version>

<executions>

 <execution>

<id>copy-dependencies</id>

<goals>

<goal>copy-dependencies</goal>

</goals>

<configuration>

<outputDirectory>target/dependency-jars/</outputDirectory>

</configuration>

 </execution>

</executions>

</plugin>

Thanks,

Abhijeet