1.编译LicenseVerifier、XPackBuild/usr/local/elasticsearch-7.14.0/modules/x-pack-core/x-pack-core-7.14.0.jar 验证licence是否有效：org.elasticsearch.license.LicenseVerifier 验证jar包是否被修改：org.elasticsearch.xpack.core.XPackBuildLicenseVerifier.java->修改为packageorg.elasticsearch.license;publicclassLicenseVerifier{p
