Hi Giuseppe,

I am encountering an error while trying to run this code in the IntelliJ. The error is

No com.lightstreamer.kernel_lib_path defined; using a unique ClassLoader; ignoring any other _lib_path supplied
Unexpected error in initialization phase:

How to solve this error? I am using a windows system. Please help me regarding this issue, This is my adapters.xml file

<?xml version="1.0" encoding="UTF-8"?>


<!-- Do not remove this line. File tag: adapters_conf-APV-7.2.0. -->


<!-- This is a generic template for the configuration file of an Adapter Set pluggable into Lightstreamer Server. It can be considered a reference example of an in-process Java Adapter deploy. Note that element and attribute names are case-sensitive.
A very simple variable-expansion feature is available; see <enable_expansion_for_adapters_config> in the Server's main configuration file. -->


<!-- Mandatory. Define an Adapter Set and its unique ID. -->
<adapters_conf id="HELLOWORLD">


<metadata_provider>


<!-- Mandatory. Java class name of the adapter. -->
<adapter_class>classfile.adapters.metadata.Literal BasedProvider</adapter_class>


</metadata_provider>


<!-- Mandatory. Define a Data Adapter named "HelloWorldAdapter". -->
<data_provider name="HelloWorldDataAdapter">

<param name="db_hostname">localhost</param>
<param name="db_user">root</param>
<param name="db_password">xxxx</param>
<param name="jdbc_driver">com.mysql.jdbc.Driver</param>
<adapter_class>classfile.adapters.HelloWorldDataAd apter</adapter_class>
</data_provider>


</adapters_conf>