JSON-java | A reference implementation of a JSON package in Java | JSON Processing library

This doesn't return Object but a type that's either inferred from the context or – if that's not possible – by passing a type parameter with a type witness: YourClass.fromJson()

Note that this won't magically work. If the object that's returned from the internal call isn't compatible with T at runtime, the assignment (of the outer return value) will throw a ClassCastException.

Example:

You are almost there, all you have to do is to new a JSON array from jsonToken as follows:

BTW, I think the JSON library you are using is org.json, not JSON.ORG. And both of your JSON strings are invalid, if no other JSON object exists behind comma, please remove it.

Code snippet

TL;DR — As this unresolved 'Cannot be resolved' errors in projects with module-info.java issue reports, vscode is brain dead when it comes to JPMS and module-info.java.

The long-winded version

From my own experience, I can personally vouch for what the reporter of the above-linked vscode issue reports…

„…I've tried both Gradle and Maven…“

…

„…I find that Gradle and Maven will automatically refresh the classpath file and remove my modifications to it, which will bring back the errors…“

…

„…there needs to be module path information set in the classpath file in order for Eclipse to be happy, but there is no good way to do with that from Gradle or Maven…“

Proof that it's a vscode issue is that the exact same project — unchanged except for the removal of your comment — compiles perfectly fine in IntelliJ…

Since your project uses neither Maven nor Gradle — opting instead to use file-based dependency mgt with the jar in the lib folder — you're in even worse shape because you've eliminated the option of applying any JPMS-enabling plugins that could resolve the issue.

For example, by adding the following pom.xml with the appropriate configuration for the maven-compiler-plugin to my experimental version of your project…

I'd just flatten it first (first console log), unless you want the whole "outer" array, in which case just do .find twice:

If it would be so easy, then Jackson or Gson was never be born.

I am affraid, that you have to declared deserializer for all of your objects manualy. This is not a rocket science, but it takes time to do it. This is an example:

Create a Jackson2ObjectMapperBuilderCustomizer bean:

Got XLSX working on the client based on this post: Parse XLSX with Node and create json.

In other words, the browser side converts the Excel to JSON, and posts the JSOn to the server. I'm assuming there will just be one worksheet, and convert the first one only if there are more than one.

I'm not entirely sure why he need both types of readAsBinaryString and readAsArrayBuffer, but it's working fine.

TL;DR:

Proposed Fix…

1. System.out.println( new Json( ).toJson( new JSONContainer<>( ... ) ) to see the correct string format of a JSONContainer's JSON.
2. Make sure your result input argument to Json.fromJson(Class, String) is in the same format printed out in 1.
   • e.g. {myObject:{class:CommonNoun,cid:{oid:139},name:Jada Pinkett Smith,form:69},children:[{myObject:{class:CommonNoun,cid:{oid:666},name:Jaden Pinkett Smith,form:-666},children:[]},{myObject:{class:CommonNoun,cid:{oid:69},name:Willow Pinkett Smith,form:69},children:[]}]}

The long answer…

„My IDE doesn't care for this phrasing, noting:“

You are mixing up a lot of things here.

javax.json is part of the JSON-B and JSON-P Java EE API - used for JSON processing and data binding. And used in context of an application server (WildFly / Tomcat / ...)

whereas com.oracle.json refers to Java ME ("Micro Edition").

and org.json is just another parser, like GSON.

You wouldn't use com.oracle.json outside of a Java ME environment, but whether you use javax.json, org.json, GSON, Jackson, ... is up to your personal taste and requirements. But mostly, the application server already contains a JSON parser - for Wildfly, this was Jackson until JSON-B/P arrived rather late to the parsing party.