I new katalon's user

I’m new katalon’s user and I need to somebody to teach me from the more basic, because I’m not a java or groovy programmer, also I don’t understand the elements of katalon’s code.

Does anyone want to help me ??

Ps: The tutorial videos understand a few

Before start doing automation test on any tools, not just Katalon Studio, I would suggest you prepare some basic knowledge.
If you want to test WebUI with Selenium, you need to know:

  • Web Element’s Locators
    • XPath, Id, Name, Class, CSS
  • How to get WebElement Attribute from WebApp on browsers
  • How Selenium locate WebElement and perform action
2 Likes

Hi Roberto,

You can refer to this links:
https://docs.katalon.com/katalon-studio/tutorials/quick_start.html#introduction

https://docs.katalon.com/katalon-studio/tutorials/index.html

Don’t hesitate to ask if you have further questions.
Hope that helps . . :smiley:

I think that the 1st tool you need to learn is not Katalon Studio. Rather, the DevTools of browsers! Have a look at the following:

When I was a learner of Katalon Studio, I got started with the section of

After you got accustomed to DevTools of browsers and Katalon Studio GUI, then you would certainly wonder what XPath and CSS Selector. Read the following articles.


because I’m not a java or groovy programmer, also I don’t understand the elements of katalon’s code.

Excuse would be no help for you. Buy a Java book and start reading it.

Thanks very much, appreciate your opinion … Ia have knowledge about HTML, CSS, a few Javascript. I going to read about " * How to get WebElement Attribute from WebApp on browsers" and " * How Selenium locate WebElement and perform action"

Thank you very much …

Ok. It’s a large road but I suppose that’s the way

Hi Kazurayam, I am a manual tester with intermediate Katalon web testing experience.

I want to start with API testing … But I am not sure where/how to start. Could you please shed some light on this.

I am not very sure.

If I were you, I would start with having a look at a built-in sample API testing project:


Let it run, see what happens, read the code and try to understand it. Try whatever change on the sample, more and more.

And I will go through a tutorial.
https://docs.katalon.com/katalon-studio/tutorials/create_first_api_test_katalon_studio.html#step-2-create-the-first-api-test

Thanks Kazurayam … I will proceed accordingly. I have a query … kindly clarify.

Katalon Web Testing uses Selenium jars.
Katalon Mobile Testing uses Appium jars

What does Katalon API testing use for testing ?

In the directory where Katalon Studio is located, you will find plugins directory. In there you will find a lot of external jar files on which Katalon Studio depends upon. In fact quite a lot. 336 jars are bundled. I think that Katalon Studio is valuable because it provides this huge compilation of jar files in a downloadable zip. Imagine, without KS, you need to visit web sites and manually download jar files for your self. … Terrible. KS does the service for you.

Some jar files among those certainly be used for Web API testing.

atu.testrecorder.screen-recorder_2.1.0.jar
ch.qos.logback.classic_1.2.3.jar
ch.qos.logback.core_1.2.3.jar
com.fasterxml.jackson.core.jackson-annotations_2.9.1.jar
com.fasterxml.jackson.core.jackson-core_2.9.6.jar
com.fasterxml.jackson.core.jackson-databind_2.9.1.jar
com.fasterxml.jackson.dataformat.jackson-dataformat-xml_2.9.1.jar
com.fasterxml.jackson.dataformat.jackson-dataformat-yaml_2.9.6.jar
com.fasterxml.jackson.module.jackson-module-jaxb-annotations_2.9.1.jar
com.fasterxml.woodstox.woodstox-core_5.0.3.jar
com.google.errorprone.error_prone_annotations_2.0.18.jar
com.google.gson_2.8.0.jar
com.google.guava_23.0.0.jar
com.google.http-client.google-http-client_1.22.0.jar
com.google.j2objc.annotations_1.1.0.jar
com.google.oauth-client.google-oauth-client_1.22.0.jar
com.ibm.icu_56.1.0.v201601250100.jar
com.jcraft.jsch_0.1.54.v20170116-1932.jar
com.kms.katalon.ansiconsole_1.0.0.201901020244.jar
com.kms.katalon.application_1.0.0.201901020244.jar
com.kms.katalon.composer.checkpoint_1.0.0.201901020244.jar
com.kms.katalon.composer.codeassist_1.0.0.201901020244.jar
com.kms.katalon.composer.components.impl_1.0.0.201901020244.jar
com.kms.katalon.composer.components_1.0.0.201901020244.jar
com.kms.katalon.composer.execution_1.0.0.201901020244.jar
com.kms.katalon.composer.explorer_1.0.0.201901020244.jar
com.kms.katalon.composer.export_1.0.0.201901020244.jar
com.kms.katalon.composer.folder_1.0.0.201901020244.jar
com.kms.katalon.composer.global_1.0.0.201901020244.jar
com.kms.katalon.composer.import_1.0.0.201901020244.jar
com.kms.katalon.composer.integration.analytics_1.0.0.201901020244.jar
com.kms.katalon.composer.integration.cucumber_1.0.0.201901020244.jar
com.kms.katalon.composer.integration.git_1.0.0.201901020244.jar
com.kms.katalon.composer.integration.jira_1.0.0.201901020244.jar
com.kms.katalon.composer.integration.kobiton_1.0.0.201901020244.jar
com.kms.katalon.composer.integration.qtest.activation_1.0.0.201901020244.jar
com.kms.katalon.composer.integration.slack_1.0.0.201901020244.jar
com.kms.katalon.composer.keyword_1.0.0.201901020244.jar
com.kms.katalon.composer.mobile.objectspy_1.0.0.201901020244.jar
com.kms.katalon.composer.mobile.recorder_1.0.0.201901020244.jar
com.kms.katalon.composer.mobile_1.0.0.201901020244.jar
com.kms.katalon.composer.objectrepository_1.0.0.201901020244.jar
com.kms.katalon.composer.preferences_1.0.0.201901020244.jar
com.kms.katalon.composer.project_1.0.0.201901020244.jar
com.kms.katalon.composer.properties_1.0.0.jar
com.kms.katalon.composer.report_1.0.0.201901020244.jar
com.kms.katalon.composer.resources_1.0.0.201901020244.jar
com.kms.katalon.composer.search_1.0.0.201901020244.jar
com.kms.katalon.composer.testcase_1.0.0.201901020244.jar
com.kms.katalon.composer.testdata_1.0.0.201901020244.jar
com.kms.katalon.composer.testlistener_1.0.0.201901020244.jar
com.kms.katalon.composer.testsuite.collection_1.0.0.201901020244.jar
com.kms.katalon.composer.testsuite_1.0.0.201901020244.jar
com.kms.katalon.composer.util_1.0.0.201901020244.jar
com.kms.katalon.composer.webservice_1.0.0.201901020244.jar
com.kms.katalon.composer.webui.objectspy_1.0.0.201901020244.jar
com.kms.katalon.composer.webui.recorder_1.0.0.201901020244.jar
com.kms.katalon.composer.webui_1.0.0.201901020244.jar
com.kms.katalon.console_1.0.0.201901020244.jar
com.kms.katalon.constant_1.0.0.201901020244.jar
com.kms.katalon.controller_1.0.0.201901020244.jar
com.kms.katalon.core.appium_1.0.0.201901020244.jar
com.kms.katalon.core.cucumber_1.0.0.201901020244.jar
com.kms.katalon.core.mobile_1.0.0.201901020244.jar
com.kms.katalon.core.webservice_1.0.0.201901020244.jar
com.kms.katalon.core.webui_1.0.0.201901020244.jar
com.kms.katalon.core_1.0.0.201901020244.jar
com.kms.katalon.custom_1.0.0.201901020244.jar
com.kms.katalon.dal.file_1.0.0.201901020244.jar
com.kms.katalon.dal_1.0.0.201901020244.jar
com.kms.katalon.entity_1.0.0.201901020244.jar
com.kms.katalon.execution.mobile_1.0.0.201901020244.jar
com.kms.katalon.execution.webservice_1.0.0.201901020244.jar
com.kms.katalon.execution.webui_1.0.0.201901020244.jar
com.kms.katalon.execution_1.0.0.201901020244.jar
com.kms.katalon.groovy_1.0.0.201901020244.jar
com.kms.katalon.integration.analytics_1.0.0.201901020244.jar
com.kms.katalon.integration.jira_1.0.0.201901020244.jar
com.kms.katalon.integration.kobiton_1.0.0.201901020244.jar
com.kms.katalon.jasper_1.0.0.201901020244.jar
com.kms.katalon.logging_1.0.0.201901020244.jar
com.kms.katalon.netlightbody_1.0.0.201901020244.jar
com.kms.katalon.preferences_1.0.0.201901020244.jar
com.kms.katalon.selenium-standalone_1.0.0.201901020244.jar
com.kms.katalon.selenium.ide_1.0.0.201901020244.jar
com.kms.katalon.support.testing.katserver_1.0.0.201901020244.jar
com.kms.katalon.tracking.service_1.0.0.201901020244.jar
com.kms.katalon.tracking_1.0.0.201901020244.jar
com.kms.katalon.util_1.0.0.201901020244.jar
com.kms.katalon_1.0.0.201901020244.jar
com.microsoft.sqlserver.sqljdbc4_4.1.5605.100.jar
com.mysql.jdbc_5.1.38.jar
com.oracle.jdbc.ojdbc7_12.1.0.2.jar
cucumber.eclipse.editor_0.0.22.201808290854.jar
cucumber.eclipse.steps.integration_0.0.22.201808290854.jar
cucumber.eclipse.steps.jdt_0.0.22.201808290854.jar
io.cucumber.core_3.0.2.jar
io.cucumber.datatable-dependencies_1.0.3.jar
io.cucumber.datatable_1.0.3.jar
io.cucumber.expressions_5.0.19.jar
io.cucumber.gherkin_5.0.0.jar
io.cucumber.html_0.2.7.jar
io.cucumber.java_3.0.2.jar
io.cucumber.junit_3.0.2.jar
io.cucumber.tag-expressions_1.1.1.jar
io.swagger.annotations_2.0.0.rc2.jar
io.swagger.core_2.0.0.rc2.jar
io.swagger.models_2.0.0.rc2.jar
io.swagger.parser-core_2.0.0.rc1.jar
io.swagger.parser-v2-converter_2.0.0.rc1.jar
io.swagger.parser-v2_2.0.0.rc1.jar
javaewah_0.7.9.v201605172130.jar
javax.activation_1.1.0.jar
javax.annotation_1.2.0.v201602091430.jar
javax.el_2.2.0.v201303151357.jar
javax.inject_1.0.0.v20091030.jar
javax.mail_1.4.0.jar
javax.servlet.jsp_2.2.0.v201112011158.jar
javax.servlet_3.1.0.v201410161800.jar
javax.validation.api_1.1.0.Final.jar
javax.websocket-api_1.1.0.jar
javax.ws.rs_1.1.1.v20130318-1750.jar
javax.xml_1.3.4.v201005080400.jar
jaxen_1.1.6.jar
net.lingala.zip4j_1.2.5.jar
net.sf.jopt-simple.jopt-simple_5.0.0.jar
net.sf.supercsv.super-csv_2.1.0.jar
org.apache.ant.launcher_1.9.6.jar
org.apache.ant_1.9.6.v201510161327
org.apache.aries.spifly.dynamic.bundle_1.0.8.jar
org.apache.aries.util_1.0.0.jar
org.apache.batik.css_1.7.0.v201011041433.jar
org.apache.batik.util.gui_1.7.0.v200903091627.jar
org.apache.batik.util_1.7.0.v201011041433.jar
org.apache.commons.beanutils_1.9.2.jar
org.apache.commons.cli_1.0.0.v201105210649.jar
org.apache.commons.codec_1.7.0.jar
org.apache.commons.collections_3.2.2.jar
org.apache.commons.compress_1.6.0.v201310281400.jar
org.apache.commons.dbutils_1.6.0.jar
org.apache.commons.digester_1.8.1.jar
org.apache.commons.email_1.4.0.jar
org.apache.commons.io_2.4.0.jar
org.apache.commons.jxpath_1.3.0.v200911051830.jar
org.apache.commons.lang3_3.6.0.jar
org.apache.commons.lang_2.6.0.jar
org.apache.commons.logging_1.2.0.jar
org.apache.commons.validator_1.5.0.jar
org.apache.felix.gogo.command_0.10.0.v201209301215.jar
org.apache.felix.gogo.runtime_0.10.0.v201209301036.jar
org.apache.felix.gogo.shell_0.10.0.v201212101605.jar
org.apache.httpcomponents.httpclient_4.5.1.jar
org.apache.httpcomponents.httpcore_4.4.4.jar
org.apache.httpcomponents.httpmime_4.5.1.jar
org.apache.jasper.glassfish_2.2.2.v201501141630.jar
org.apache.lucene.core_6.3.0.jar
org.apache.poi.ooxml.schemas_3.9.0.v201405241750.jar
org.apache.poi.ooxml_3.9.0.v201405241905.jar
org.apache.poi_3.9.0.v201405241750.jar
org.apache.xerces.impl_2.11.0.jar
org.apache.xmlbeans_2.6.0.jar
org.assertj.core_3.10.0.jar
org.beanshell.bsh_2.0.0.0b4.jar
org.codehaus.groovy.eclipse.codeassist.completion_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse.codebrowsing_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse.compilerResolver_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse.core_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse.dsl_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse.quickfix_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse.refactoring_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse.ui_2.9.2.xx-201611170128-e46.jar
org.codehaus.groovy.eclipse_2.9.2.xx-201611170128-e46
org.codehaus.groovy_2.4.7.xx-201611170128-e46
org.codehaus.mojo.animal-sniffer-annotations_1.14.0.jar
org.dom4j_1.6.1.v201312101416.jar
org.eclipse.ant.core_3.4.100.v20160505-0642.jar
org.eclipse.compare.core_3.6.0.v20160418-1534.jar
org.eclipse.compare_3.7.1.v20170103-1805.jar
org.eclipse.core.commands_3.8.1.v20161221-1651.jar
org.eclipse.core.contenttype_3.5.100.v20160418-1621.jar
org.eclipse.core.databinding.beans_1.3.100.v20160509-1025.jar
org.eclipse.core.databinding.observable_1.6.0.v20160511-1747.jar
org.eclipse.core.databinding.property_1.6.0.v20160427-0852.jar
org.eclipse.core.databinding_1.6.0.v20160412-0910.jar
org.eclipse.core.expressions_3.5.100.v20160418-1621.jar
org.eclipse.core.filebuffers_3.6.0.v20160503-1849.jar
org.eclipse.core.filesystem_1.6.1.v20161113-2349.jar
org.eclipse.core.jobs_3.8.0.v20160509-0411.jar
org.eclipse.core.net_1.3.0.v20160418-1534.jar
org.eclipse.core.resources_3.11.1.v20161107-2032.jar
org.eclipse.core.runtime_3.12.0.v20160606-1342.jar
org.eclipse.core.variables_3.3.0.v20160419-1720.jar
org.eclipse.debug.core_3.10.100.v20160419-1720.jar
org.eclipse.debug.ui_3.11.202.v20161114-0338.jar
org.eclipse.e4.core.commands_0.11.100.v20160506-0804.jar
org.eclipse.e4.core.contexts_1.5.1.v20170203-1100.jar
org.eclipse.e4.core.di.annotations_1.5.0.v20151127-1241.jar
org.eclipse.e4.core.di.extensions_0.14.0.v20160211-1614.jar
org.eclipse.e4.core.di_1.6.1.v20160712-0927.jar
org.eclipse.e4.core.services_2.0.100.v20160509-1032.jar
org.eclipse.e4.emf.xpath_0.1.200.v20160506-0804.jar
org.eclipse.e4.ui.bindings_0.11.100.v20160509-1025.jar
org.eclipse.e4.ui.css.core_0.12.1.v20161114-0210.jar
org.eclipse.e4.ui.css.swt.theme_0.10.100.v20160523-0836.jar
org.eclipse.e4.ui.css.swt_0.12.100.v20160517-1505.jar
org.eclipse.e4.ui.di_1.1.100.v20160506-0759.jar
org.eclipse.e4.ui.dialogs_1.1.0.v20151127-1218.jar
org.eclipse.e4.ui.model.workbench_1.2.0.v20160229-1459.jar
org.eclipse.e4.ui.services_1.2.100.v20160506-0759.jar
org.eclipse.e4.ui.widgets_1.1.100.v20160506-0759.jar
org.eclipse.e4.ui.workbench.addons.swt_1.2.101.v20170206-1129.jar
org.eclipse.e4.ui.workbench.renderers.swt.cocoa_0.11.300.v20160330-1418.jar
org.eclipse.e4.ui.workbench.renderers.swt_0.14.1.v20170117-1415.jar
org.eclipse.e4.ui.workbench.swt_0.14.1.v20160829-0832.jar
org.eclipse.e4.ui.workbench3_0.13.100.v20160506-0759.jar
org.eclipse.e4.ui.workbench_1.4.0.v20160517-1624.jar
org.eclipse.egit.core_4.4.1.201607150455-r.jar
org.eclipse.egit.doc_4.4.1.201607150455-r.jar
org.eclipse.egit.ui_4.4.1.201607150455-r.jar
org.eclipse.egit_4.4.1.201607150455-r.jar
org.eclipse.emf.common_2.12.0.v20160420-0247.jar
org.eclipse.emf.ecore.change_2.11.0.v20160420-0247.jar
org.eclipse.emf.ecore.xmi_2.12.0.v20160420-0247.jar
org.eclipse.emf.ecore_2.12.0.v20160420-0247.jar
org.eclipse.equinox.app_1.3.400.v20150715-1528.jar
org.eclipse.equinox.bidi_1.0.0.v20160307-1318.jar
org.eclipse.equinox.common_3.8.0.v20160509-1230.jar
org.eclipse.equinox.concurrent_1.1.0.v20130327-1442.jar
org.eclipse.equinox.console_1.1.200.v20150929-1405.jar
org.eclipse.equinox.ds_1.4.400.v20160226-2036.jar
org.eclipse.equinox.event_1.3.200.v20160324-1850.jar
org.eclipse.equinox.frameworkadmin.equinox_1.0.700.v20160102-2223.jar
org.eclipse.equinox.frameworkadmin_2.0.300.v20160504-1450.jar
org.eclipse.equinox.http.jetty_3.3.0.v20160324-1850.jar
org.eclipse.equinox.http.servlet_1.3.1.v20160808-1329.jar
org.eclipse.equinox.jsp.jasper.registry_1.0.300.v20130327-1442.jar
org.eclipse.equinox.jsp.jasper_1.0.500.v20150119-1358.jar
org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.1.401.v20161122-1740
org.eclipse.equinox.launcher_1.3.201.v20161025-1711.jar
org.eclipse.equinox.p2.core_2.4.100.v20160419-0834.jar
org.eclipse.equinox.p2.engine_2.4.100.v20160419-0834.jar
org.eclipse.equinox.p2.metadata.repository_1.2.300.v20160419-0834.jar
org.eclipse.equinox.p2.metadata_2.3.100.v20160427-2220.jar
org.eclipse.equinox.p2.repository_2.3.200.v20160421-0324.jar
org.eclipse.equinox.preferences_3.6.1.v20160815-1406.jar
org.eclipse.equinox.registry_3.6.100.v20160223-2218.jar
org.eclipse.equinox.security.macosx_1.100.200.v20130327-1442.jar
org.eclipse.equinox.security_1.2.200.v20150715-1528.jar
org.eclipse.equinox.simpleconfigurator.manipulator_2.0.200.v20160504-1450.jar
org.eclipse.equinox.simpleconfigurator_1.1.200.v20160504-1450.jar
org.eclipse.equinox.util_1.0.500.v20130404-1337.jar
org.eclipse.help_3.7.0.v20160602-1307.jar
org.eclipse.jdt.core.manipulation_1.7.0.v20160419-0705.jar
org.eclipse.jdt.core_3.12.0.xx-201611170128-e46.jar
org.eclipse.jdt.debug.ui_3.7.201.v20160811-0450.jar
org.eclipse.jdt.debug_3.10.1.v20160811-0441
org.eclipse.jdt.groovy.core_2.9.2.xx-201611170128-e46.jar
org.eclipse.jdt.junit.core_3.8.0.v20160421-1701.jar
org.eclipse.jdt.junit.runtime_3.4.600.v20160505-0715.jar
org.eclipse.jdt.junit_3.9.0.v20160421-1701.jar
org.eclipse.jdt.launching_3.8.101.v20161111-2014.jar
org.eclipse.jdt.ui_3.12.2.v20160929-0804.jar
org.eclipse.jdt_3.12.3.v20170301-0400.jar
org.eclipse.jetty.continuation_9.3.9.v20160517.jar
org.eclipse.jetty.http_9.3.9.v20160517.jar
org.eclipse.jetty.io_9.3.9.v20160517.jar
org.eclipse.jetty.security_9.3.9.v20160517.jar
org.eclipse.jetty.server_9.3.9.v20160517.jar
org.eclipse.jetty.servlet_9.3.9.v20160517.jar
org.eclipse.jetty.util_9.3.9.v20160517.jar
org.eclipse.jetty.websocket.api_9.3.9.v20160517.jar
org.eclipse.jetty.websocket.client_9.3.9.v20160517.jar
org.eclipse.jetty.websocket.common_9.3.9.v20160517.jar
org.eclipse.jetty.websocket.javax.websocket.server_9.3.9.v20160517.jar
org.eclipse.jetty.websocket.javax.websocket_9.3.9.v20160517.jar
org.eclipse.jetty.websocket.server_9.3.9.v20160517.jar
org.eclipse.jetty.websocket.servlet_9.3.9.v20160517.jar
org.eclipse.jface.databinding_1.8.1.v20161026-1531.jar
org.eclipse.jface.text_3.11.2.v20170220-1911.jar
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org.eclipse.jgit.lfs_4.4.1.201607150455-r.jar
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org.eclipse.jsch.core_1.3.0.v20160422-1917.jar
org.eclipse.ltk.core.refactoring_3.7.0.v20160419-0705.jar
org.eclipse.ltk.ui.refactoring_3.8.0.v20160518-1817.jar
org.eclipse.osgi.compatibility.state_1.0.200.v20160504-1419.jar
org.eclipse.osgi.services_3.5.100.v20160504-1419.jar
org.eclipse.osgi_3.11.3.v20170209-1843.jar
org.eclipse.persistence.eclipselink_2.5.0.RC1.jar
org.eclipse.search_3.11.1.v20161113-1700.jar
org.eclipse.swt.cocoa.macosx.x86_64_3.105.3.v20170228-0512.jar
org.eclipse.swt_3.105.3.v20170228-0512.jar
org.eclipse.team.core_3.8.0.v20160418-1534.jar
org.eclipse.team.ui_3.8.0.v20160518-1906.jar
org.eclipse.text_3.6.0.v20160503-1849.jar
org.eclipse.ui.browser_3.5.2.v20161114-0210.jar
org.eclipse.ui.cheatsheets_3.5.0.v20160504-0839.jar
org.eclipse.ui.console_3.6.201.v20161107-0337.jar
org.eclipse.ui.editors_3.10.1.v20161106-1856.jar
org.eclipse.ui.forms_3.7.1.v20161220-1635.jar
org.eclipse.ui.ide.application_1.1.101.v20160829-0827.jar
org.eclipse.ui.ide_3.12.3.v20170119-0935.jar
org.eclipse.ui.intro_3.5.2.v20161116-1147.jar
org.eclipse.ui.navigator.resources_3.5.101.v20161006-0640.jar
org.eclipse.ui.navigator_3.6.101.v20161006-1120.jar
org.eclipse.ui.views.properties.tabbed_3.7.0.v20160310-0903.jar
org.eclipse.ui.views_3.8.102.v20170111-0801.jar
org.eclipse.ui.workbench.texteditor_3.10.1.v20160818-1626.jar
org.eclipse.ui.workbench_3.108.3.v20170216-1539.jar
org.eclipse.ui_3.108.1.v20160929-1045.jar
org.eclipse.update.configurator_3.3.400.v20160506-0750.jar
org.fusesource.jansi_1.17.1.jar
org.greenrobot.eventbus_3.1.1.jar
org.hamcrest.core_1.3.0.v201303031735.jar
org.javalite.common_1.4.12.jar
org.json_20140107.0.0.jar
org.jsoup_1.7.2.jar
org.junit_4.12.0.jar
org.objectweb.asm.all.debug_5.0.3.jar
org.objectweb.asm.tree_5.0.1.v201404251740.jar
org.objectweb.asm_5.0.1.v201404251740.jar
org.postgresql.jdbc41_9.4.1208.jre7.jar
org.slf4j.api_1.7.2.v20121108-1250.jar
org.tukaani.xz_1.3.0.v201308270617.jar
org.w3c.css.sac_1.3.1.v200903091627.jar
org.w3c.dom.events_3.0.0.draft20060413_v201105210656.jar
org.w3c.dom.smil_1.0.1.v200903091627.jar
org.w3c.dom.svg_1.1.0.v201011041433.jar
org.yaml.snakeyaml_1.18.0.jar
org.zeroturnaround.zt-exec_1.7.0.jar
org.zeroturnaround.zt-process_1.3.0.jar
slf4j.api_1.7.25.jar
stax2-api_3.1.4.jar
wsdl4j_1.6.2.jar
xml-apis_1.0.0.b2.jar

How Katalon Studio makes a HTTP GET request to a URL? which jar is used? … I guess the artifacts of the Apache HTTP Components :

org.apache.httpcomponents.httpclient_4.5.1.jar
org.apache.httpcomponents.httpcore_4.4.4.jar
org.apache.httpcomponents.httpmime_4.5.1.jar

performs the core role.

Other jars would perform their own roles.

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:blush: ありがとうございます
Arigatou gozaimasu