Tried to follow this one: https://docs.katalon.com/katalon-studio/docs/execution-settings.html#network-settings and created new keystore with .p12 format. It works well in JMeter but encountered this in Katalon:
java.util.ConcurrentModificationException
at org.apache.commons.ssl.KeyStoreBuilder.validate(KeyStoreBuilder.java:240)
at org.apache.commons.ssl.KeyStoreBuilder.build(KeyStoreBuilder.java:129)
at org.apache.commons.ssl.KeyMaterial.(KeyMaterial.java:179)
at org.apache.commons.ssl.KeyMaterial.(KeyMaterial.java:170)
at org.apache.commons.ssl.KeyMaterial.(KeyMaterial.java:160)
at org.apache.commons.ssl.KeyMaterial.(KeyMaterial.java:64)
at org.apache.commons.ssl.KeyMaterial.(KeyMaterial.java:114)
at com.kms.katalon.core.webservice.common.HttpUtil.getKeyManagers(HttpUtil.java:298)
at com.kms.katalon.core.webservice.common.HttpUtil.getDefaultHttpContext(HttpUtil.java:252)
at com.kms.katalon.core.webservice.common.HttpUtil.sendRequest(HttpUtil.java:121)
at com.kms.katalon.core.webservice.common.BasicRequestor.send(BasicRequestor.java:58)
at com.kms.katalon.controller.WebServiceController.sendRequest(WebServiceController.java:150)
at com.kms.katalon.composer.webservice.parts.RestServicePart$8.run(RestServicePart.java:283)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)