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 Google Guava,https://guava.dev/,com.google.common.* JBoss Logging,,org.jboss.logging JSON-java,https://github.com/stleary/JSON-java,org.json Spring,https://spring.io/,org.springframework.*