Framework name,URL,Package prefixes Java Standard Library,,java.* Java extensions,,javax.* jakarta.* Kotlin Standard Library,,kotlin* Android,,android.* Android extensions,,androidx.* Apache Commons Collections,https://commons.apache.org/proper/commons-collections/,org.apache.commons.collections org.apache.commons.collections4 Apache Commons IO,https://commons.apache.org/proper/commons-io/,org.apache.commons.io Apache Commons Lang,https://commons.apache.org/proper/commons-lang/,org.apache.commons.lang3 Apache Commons Text,https://commons.apache.org/proper/commons-text/,org.apache.commons.text Apache HttpComponents,https://hc.apache.org/,org.apache.hc.core5.* org.apache.http Apache Log4j 2,https://logging.apache.org/log4j/2.0/,org.apache.logging.log4j Apache Struts,https://struts.apache.org/,org.apache.struts2 org.apache.struts.beanvalidation.validation.interceptor Apache Velocity,https://velocity.apache.org/,org.apache.velocity.app org.apache.velocity.runtime Couchbase,https://couchbase.com/,com.couchbase.client.* FreeMarker,https://freemarker.apache.org/,freemarker.cache freemarker.template Google Gson,https://github.com/google/gson,com.google.gson Google Guava,https://guava.dev/,com.google.common.* Groovy,https://groovy-lang.org/,groovy.lang groovy.text groovy.util org.codehaus.groovy.control Hibernate,https://hibernate.org/,org.hibernate Jackson,https://github.com/FasterXML/jackson,com.fasterxml.jackson.* JBoss Logging,https://github.com/jboss-logging/jboss-logging,org.jboss.logging Jetty,https://eclipse.dev/jetty/,org.eclipse.jetty.client jOOQ,https://www.jooq.org/,org.jooq JSON-java,https://github.com/stleary/JSON-java,org.json MongoDB,https://www.mongodb.com/,com.mongodb Netty,https://netty.io/,io.netty.* OkHttp,https://square.github.io/okhttp/,okhttp3 RabbitMQ,https://www.rabbitmq.com/,com.rabbitmq.client Retrofit,https://square.github.io/retrofit/,retrofit2 SLF4J,https://www.slf4j.org/,org.slf4j SnakeYAML,https://github.com/snakeyaml/snakeyaml,org.yaml.snakeyaml Spring,https://spring.io/,org.springframework.* Thymeleaf,https://www.thymeleaf.org/,org.thymeleaf