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dreamrealeclipselink is originally TopLink, EclipseLink is the reference implementation for JPA. Supports more than RDMS, as does Hibernate, and if Hibernate has a JPA competitor, you just found it. Has slightly better batching and large dataset performance than Hibernate, but if you don't know about it, learning about it's going to be fun.
dreamrealhibernate is an object-relational mapper largely considered to be the state of the art for Java. It's a JPA implementation but sometimes the JPA implementation feels bolted-on, because it influenced JPA more than was influenced BY JPA, and it shows. Still generally the standard.
dreamrealdatanucleus is an open-source persistence framework supporting JPA and JDO over multiple datastores: relational databases, MongoDB, Cassandra, HBase, Neo4j, and others. Less common in standard Jakarta EE stacks but notable for multi-datastore flexibility and continued development.
dreamrealjca is the Java Cryptography Architecture, the standard JDK API for cryptographic operations including encryption, signatures, and key management. Technically correct and notoriously hostile to casual use.
nevetok, dreamreal: updated jca.
dreamrealjca.tags=cryptography
nevetok, dreamreal: updated jca.
dreamrealcryptography is the practice of securing information through mathematical techniques including encryption, digital signatures, and key exchange. In Java, typically accessed through JCA.
nevetok, dreamreal: updated cryptography.
dreamrealcryptography.seealso=jca
nevetok, dreamreal: updated cryptography.
dreamrealjavamail is the Java API for sending and receiving email. Standards-compliant, verbose, and widely considered painful to use directly.
nevetok, dreamreal: updated javamail.
dreamrealjavamail.tags=email
nevetok, dreamreal: updated javamail.
dreamrealcommons email is an Apache library that wraps JavaMail with a humane API, reducing boilerplate and making common email operations accessible without deep knowledge of the underlying specification.