Editing Task Properties Adds Invalid @_xmlns Attribute to XML in the VSCode Extension

[SaliyaBandara]

Description

When editing a task in the WSO2 Micro Integrator VSCode extension, modifying the trigger settings (such as setting a trigger count) introduces a syntax error. Specifically, an invalid _xmlns attribute appears in the message property XML, breaking the configuration and resulting in malformed XML.

Steps to Reproduce

1. Open the WSO2 Micro Integrator VSCode extension and create a new project
2. Create a sequence with the following XML:

   <?xml version="1.0" encoding="UTF-8"?>
   <sequence name="InjectXMLSequence" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
       <log category="INFO" level="custom">
           <property name="City" expression="//city"/>
       </log>
       <drop/>
   </sequence> 

3. Create a task with the following XML:

   <?xml version="1.0" encoding="UTF-8"?>
   <task class="org.apache.synapse.startup.tasks.MessageInjector" group="synapse.simple.quartz" name="InjectXMLTask" xmlns="http://ws.apache.org/ns/synapse">
       <trigger interval="5"/>
       <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="format" value="soap12"/>
       <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="message">
           <request xmlns="">
               <location>
                   <city>London</city>
                   <country>UK</country>
               </location>
           </request>
       </property>
       <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="injectTo" value="sequence"/>
       <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="sequenceName" value="InjectXMLSequence"/>
   </task>

4. In the VSCode extension, open the task and use the GUI Edit button.
5. Untick the Trigger Indefinitely option.
6. Insert a valid number (e.g: 2) into the Count textbox and click Update.

Expected Result

The task XML should update without syntax errors.

Actual Result

The updated task XML contains a syntax error, as shown below:

<?xml version="1.0" encoding="UTF-8"?>
<task class="org.apache.synapse.startup.tasks.MessageInjector" group="synapse.simple.quartz" name="InjectXMLTask" xmlns="http://ws.apache.org/ns/synapse">
    <trigger count="2" interval="5"/>
    <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="format" value="soap12"/>
    <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="message">
        <request @_xmlns="">
            <location>
                <city>London</city>
                <country>UK</country>
            </location>
        </request>
    </property>
    <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="injectTo" value="sequence"/>
    <property xmlns:task="http://www.wso2.org/products/wso2commons/tasks" name="sequenceName" value="InjectXMLSequence"/>
</task>

The message property contains an invalid @_xmlns attribute, making the XML malformed.

Version

v1.1.4

Environment Details (with versions)

OS: Windows 11 Pro 23H2

JDK

openjdk 17.0.2 2022-01-18
OpenJDK Runtime Environment (build 17.0.2+8-86)
OpenJDK 64-Bit Server VM (build 17.0.2+8-86, mixed mode, sharing)

Maven

mvn -v
Apache Maven 3.9.9 (8e8579a9e76f7d015ee5ec7bfcdc97d260186937)
Maven home: C:\Java\apache-maven-3.9.9
Java version: 17.0.2, vendor: Oracle Corporation, runtime: C:\Java\jdk-17.0.2
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 11", version: "10.0", arch: "amd64", family: "windows"