| Framework Name | Framework Type | Classes Count |
| | 1 |
| AbacusUtils | Library | 275 |
| Acm | Library | 50 |
| Activiti | Business Process Management ( BPM ) | 164 |
| AGI ( Analytical Graphics ) | Graphics / Modelling | 1771 |
| Airship Android | Android Library | 154 |
| Akka | BigData | 3318 |
| AlFresco | ECM / BPM | 4993 |
| Amazon AWS | Web | 4999 |
| Android DroneKit | Vehicle / Pilot Control | 166 |
| Android Lint | Code Analysis | 124 |
| Android Plot | Graphics / Charts | 93 |
| Apache Accumulo | BigData | 2520 |
| Apache ActiveMQ | ESB | 2805 |
| Apache Avalon | Server | 659 |
| Apache Axis | Web | 753 |
| Apache Blur | BigData | 899 |
| Apache BookKeeper | BigData | 192 |
| Apache Camel | ESB | 1284 |
| Apache Cayenne | ORM | 764 |
| Apache Click | Web | 83 |
| Apache Cocoon | Web | 4427 |
| Apache Commons | Library | 4363 |
| Apache Crunch | BigData | 257 |
| Apache Curator | BigData | 373 |
| Apache CXF | WebService | 3761 |
| Apache Empire DB | ORM | 159 |
| Apache Felix | Open Standards ( OSGI ) Implementation | 477 |
| Apache FOP Batik | Graphics | 1793 |
| Apache Geronimo | Server | 2762 |
| Apache Hadoop | BigData | 810 |
| Apache Hive | BigData | 4980 |
| Apache HttpClient | Web | 138 |
| Apache HttpComponents | Web | 963 |
| Apache JackRabbit | Repository | 2146 |
| Apache Jena | Web | 1551 |
| Apache Kafka | Distributed Messaging / BigData | 75 |
| Apache Log4j | Logging | 199 |
| Apache Lucene | Search | 2456 |
| Apache Lucene Codecs | Search | 50 |
| Apache Mahout | BigData | 398 |
| Apache MetaModel | BigData | 436 |
| Apache Mina | Networking | 486 |
| Apache MyFaces | Web | 250 |
| Apache OfBiz | ECommerce | 113 |
| Apache OODT | Distributed Systems | 1310 |
| Apache Oozie | BigData | 499 |
| Apache Pig | BigData | 968 |
| Apache Pivot | Descktop UI | 832 |
| Apache POI | Documentation | 2225 |
| Apache Qpid | Messaging | 295 |
| Apache River ( Jini ) | | 443 |
| Apache Samza | BigData | 110 |
| Apache Shiro | Security | 386 |
| Apache Sling | Web | 210 |
| Apache Solr Lucene | Search | 1515 |
| Apache Spark | BigData | 760 |
| Apache Storm | BigData | 1038 |
| Apache Struts | Web | 754 |
| Apache Tapestry | Web | 1450 |
| Apache Tez | BigData | 84 |
| Apache Tika | Library | 301 |
| Apache TomEE | Server | 25 |
| Apache Turbine | Web | 404 |
| Apache Twill | BigData | 107 |
| Apache Uima | Unstructurd Information Analytics | 403 |
| Apache UserGrid | Web / Mobile | 144 |
| Apache Velocity | GUI-View | 162 |
| Apache VQuery | BigData | 607 |
| Apache Xerces | XML | 243 |
| Apache Zookeeper | BigData | 57 |
| Ariba Web | Web | 1401 |
| AstroGrid | Astronomy | 77 |
| Avro | BigData | 383 |
| Axon | CQRS | 661 |
| Barracuda | GUI-View | 766 |
| BigFaceless | PDF Library | 246 |
| BioJava | Biological Data | 1115 |
| BlazeGraph | Graph Database | 4395 |
| BlueCove | Bluetooth | 60 |
| Bouncy Castle Cryptographic | Cryptographic Message System | 467 |
| BouncyCastle | Encryption | 1574 |
| Brooklyn | | 1693 |
| Calcite | BigData | 1735 |
| Canova | BigData | 18 |
| Carrot | Search Clustering Engine | 583 |
| Cascading | BigData | 566 |
| CDK | Chemistry Development Kit | 1234 |
| Checker | Problem / Error Check Framework | 1022 |
| Code Trails | Data Analysis | 4956 |
| CodeName One | Cross Platform ( Mobile ) | 567 |
| Colt | Scientific and Technical Computing | 240 |
| Content Control | CMS | 651 |
| ControlP5 | GUI Library | 72 |
| ControlsFX | JavaFX Library | 123 |
| Corba | Library | 147 |
| Crawler4j | Web Crawler | 71 |
| CytoScape | Bioinformatics for visualizing molecular interact | 982 |
| DataFu | BigData | 67 |
| DataStax | NoSQL BigData | 164 |
| Datomic | Distributed Database | 11 |
| Deeplearning4j | Library | 18 |
| Delta Spike | portable CDI extensions | 300 |
| DirectWebRemoting (DWR) | Web | 484 |
| Doclet | Documentation | 29 |
| Documentum | Content Management | 331 |
| DropWizard Jersey | Rest WebService | 39 |
| DSL Platform | Library | 53 |
| EBean | ORM | 254 |
| Echo | Web | 652 |
| ECJ | Computation Research | 451 |
| EclipseLink | Persistence Services / JPA / ORM / OXM | 2407 |
| EHCache | Cache | 562 |
| Ejml ( Efficient Java Matrix Library ) | Linear Algebra | 224 |
| Ektorp CouchDb | BigData | 129 |
| ESRI | Geometry / Mathematics | 111 |
| ExistDB | Database | 1617 |
| Facebook4j | Social Media / Facebook | 193 |
| FasterXML | XML | 89 |
| FastJson | JSON | 373 |
| FastUtil | Collections Library | 3630 |
| Fiji | Science / Visualization | 4065 |
| Fisica | Physical Modelling / Physics | 21 |
| Fislet (Physlets) | Applets for physics education | 34 |
| Flume | BigData | 481 |
| Frame4j | Framework | 138 |
| Franz AllegroGraph | Graph Search / Algorithm | 63 |
| FreeHep | Physics Vector Graphics | 2003 |
| FreeMarker Template | GUI-View | 203 |
| GeoApi | Geospatial / Geometry / Mathematics | 258 |
| Geomajas | Geometry / Mathematics | 8 |
| GeoTools | LGPL Library | 5000 |
| Giraph | BigData | 899 |
| GlassFish | Server | 677 |
| Glide | Android Image loading / caching library | 235 |
| Google App Engine | Platform as a Service (PaaS) | 36 |
| Google Collections | Library | 96 |
| Google GSon | JSON | 34 |
| Google Guava | Library | 352 |
| Google Guice | Dependency Injection | 178 |
| Google Maps | Library | 85 |
| Google Processing | Google Text Processing | 34 |
| Google WebToolkit (GWT) | GUI-View | 2041 |
| Grails | Web | 242 |
| Groovy | Web | 1176 |
| gvSIG | Geometry / Mathematics | 165 |
| GWOptics | Gravitational wave detection / Science / Physics | 51 |
| GXT | Data Centric Application using Java / GWT | 1691 |
| HamCrest | Testing | 76 |
| HBase | BigData | 335 |
| HeatonReasearch | | 959 |
| Hibernate JPA | ORM | 196 |
| Hibernate ORM | ORM | 2803 |
| HibernateSpatial | Hibernate Extension for Geographic Data / Geometry | 82 |
| Hippo | Content Management System (CMS) | 843 |
| HSQLDB | SQL Database | 51 |
| HtmlParser | Html Parser | 146 |
| HtsJDK | SAM VCF HTS data Format Library | 597 |
| HttpUnit | Testing | 94 |
| HypergraphDb | BigData | 412 |
| Hystrix | Distributed Systems | 59 |
| IBatis | ORM | 251 |
| Ignite | Distributed in-memory platform | 475 |
| ImageJ | Image Processing | 333 |
| Induction | Web | 113 |
| Infinispan | BigData | 675 |
| IText | PDF | 697 |
| Ivy | Dependency Management | 564 |
| JackCess | MS Access database API | 157 |
| Java EE | Library | 1998 |
| Java ExcelApi | Excel Api | 81 |
| Java FX | Library | 689 |
| Java ME | Library | 145 |
| Java SE | Library | 4321 |
| Java3D | 3D Graphics Media | 214 |
| JavaML | Java Machine Learning API | 217 |
| JavaNlp | Natural Language Processing | 1948 |
| JavAssist | Library | 253 |
| Javers | Auditing Data Changes | 191 |
| JaxP | XML | 143 |
| JBLAS | Linear Algebra / Mathematics / Geometry | 45 |
| JBoss Seam | Web | 569 |
| JBoss Server | Server | 688 |
| JBoss System | Server | 107 |
| JBoss Weld | Contexts and Dependency Injection ( CDI ) | 956 |
| JBullet | Physics Library | 217 |
| JCabi | Library | 134 |
| JCR | | 120 |
| JDIP | Adjudicator / Mapper | 274 |
| JDom | XML DOM Parser | 118 |
| Jetty | Server | 1603 |
| JFreeChart | Graphics | 629 |
| JGraph | GUI-View | 218 |
| JideSoft | Java UI component | 2339 |
| JMock | Testing | 53 |
| JMonkeyEngine | Gaming | 904 |
| Joda Time | Library | 145 |
| JogAmp | Grapics / Multimedia | 391 |
| Jooby | Micro Web Framework | 199 |
| Jooq | SQL / Database | 641 |
| Jppf | Grid / Parallel Computing | 384 |
| Jsch | SSH2 / Networking | 53 |
| JSCI | Science Library | 534 |
| JScience | Science | 3821 |
| JSF | GUI-View | 86 |
| JsonLib | XML / JSON | 51 |
| JSoup | HTML Parser | 86 |
| JTS Topology | 2D spatial predicates and functions | 150 |
| Julius Davis JSON Simple | JSON | 11 |
| JUnit | Testing | 43 |
| JVX | DataBase / File system | 791 |
| KNIME | Analytics | 3382 |
| KnoplerFish | OSGI SDK | 466 |
| KonaKart | ECommerce | 1196 |
| Liferay Portal | Portlet | 4883 |
| Light Weight Event System (LWES) | Event System Library | 68 |
| LiquiBase | Source Control for Database | 809 |
| LNB | Geometry / Mathematics | 1476 |
| LogBack | Logging | 601 |
| Logback Api | Logging | 601 |
| LoopJ | | 31 |
| LWJGL | Gaming | 1169 |
| Mallet | Machine Learning | 812 |
| MapDB | Database Engine | 109 |
| MariaDB | Database API | 159 |
| Mason | Simulation / Visualization | 236 |
| Maverick | Web | 270 |
| Mesos | BigData / Parallel Applications | 13 |
| MetaWidget | GUI-View | 514 |
| MicroStrategy | Library | 4998 |
| Minim | Audio Library | 78 |
| Mockito | Testing | 320 |
| MOEA | Algorithm | 402 |
| MongoDB NoSQL | BigData | 520 |
| Morphia MongoDb | BigData | 215 |
| Mustache | GUI-View | 15 |
| MyBatis | ORM | 278 |
| Natural Language Processing (OpenNLP) | Natural Language Processing | 464 |
| ncWMS | Web Map Service for geospatial data / Geometry / M | 150 |
| ND4J | JVM Library | 17 |
| NetCDF | Array-oriented Scientific Data Library | 448 |
| Netty | Web Networking | 878 |
| Neuroph | Neural Network | 154 |
| NimbusDS | Encoding and Decoding JSON Web Tokens (JWT) | 74 |
| Ninja | Full Stack Web | 253 |
| OACC ( Object Access Control ) | Security | 99 |
| ObjectDraw | GUI / Graphics | 36 |
| Open Pandora | Web | 132 |
| Open Xava | Web | 712 |
| OpenCMIS | Chemistry | 390 |
| OpenCMS | Content Management | 3159 |
| OpenCSV | Library | 23 |
| OpenFire | Collaboration / Messaging | 652 |
| Oracle ADF | Library | 468 |
| Oracle Weblogic | Web | 1219 |
| Orientdb | Distributed Graph Database | 1116 |
| ORMLite | ORM | 21 |
| OSGI | Open Standards | 469 |
| OwlApi | Ontologies (Physics) | 1253 |
| PDFBox | PDF Library | 527 |
| PhidGet | GUI Widget | 99 |
| Phys2D | Physics / Science | 63 |
| PI4J | I/O for Raspberry Pi platform | 121 |
| PixelMed | Medical Image Format | 573 |
| Play | Web | 415 |
| PostGIS | PostgreSQL database | 50 |
| PowerMock | Testing | 222 |
| PrimeFaces | GUI-View | 854 |
| Princeton Standard Library | Library | 18 |
| Processing | | 56 |
| Push Notification (NOTNOOP) | Push Notification Library | 31 |
| Quartz | Job Scheduler / Cron Jobs | 303 |
| Quasar | Asynchronous Programming Library | 216 |
| QuickFix | Messaging Engine | 4303 |
| RabbitMQ | Message Queue | 338 |
| Reactor | Reactor Stream Library | 353 |
| Reflections | JRE metadata analysis | 34 |
| RestFB | Facebook Graph API | 248 |
| RetroFacebook | Social Media / Facebook | 135 |
| Retrofit | Rest WebService | 29 |
| Riak | NoSQL BigData | 370 |
| Rife | Content Management | 1143 |
| RoboCode | Programming Game | 105 |
| Roborio | Robotics | 703 |
| RxJava | JVM Library | 95 |
| SAP NetWeaver | | 4357 |
| Sax | XML | 35 |
| Scribe | OAuth Library | 93 |
| Selenide | Testing | 120 |
| Selenium | Testing | 473 |
| SerfJ | Rest Web Services | 26 |
| ServletApi | Web | 72 |
| Simple | XML | 85 |
| SiteMesh | GUI-View | 88 |
| SLF4J | Logging | 104 |
| Slick | Game Library | 304 |
| Smack Ignite | Open Source XMPP (Jabber) client library | 2 |
| SmartGWT | GWT / JSF / GUI | 1855 |
| Smartics | | 48 |
| SonarSource | Code Quality | 39 |
| SourceForge DBUnit | Testing | 340 |
| Sourceforge Dom4j | XML DOM Parser | 156 |
| Sourceforge Jasper Reports | Graphics | 2706 |
| SourceForge Jung | GUI-View | 458 |
| SourceForge ThinWire | Web | 100 |
| Spark Micro Web | Miro Web | 291 |
| SpecialRelativity | Physics | 40 |
| Spock | Testing | 37 |
| Spring AMQP | Web | 211 |
| Spring Android | Web | 119 |
| Spring Batch | Web | 786 |
| Spring Boot | Web | 863 |
| Spring Hateoas | Web | 84 |
| Spring Integration | Web | 1197 |
| Spring LDAP | Web | 276 |
| Spring Mobile | Web | 34 |
| Spring MVC | Web | 3437 |
| Spring Security | Web | 686 |
| Spring Session | Web | 25 |
| Spring Social | API for Social Platforms | 347 |
| Spring Webflow | Web | 480 |
| Spring WebService | Web | 424 |
| Spring XD | Web | 1045 |
| SpringData CouchDb | BigData | 78 |
| SpringData MongoDb | BigData | 225 |
| SpyMemCached | Cache | 103 |
| Sqoop | BigData | 31 |
| Stack API for XML (STAX) | XML | 21 |
| Stanford Parser | Library | 1943 |
| SuanShu | Numerical / Statistical Library | 1433 |
| SuperCSV | CSV | 124 |
| SVNKit (Subversion) | Configuration Management ( Version Control ) | 268 |
| Tabris | Mobile Application Toolkit | 152 |
| Takes | Web | 213 |
| TestNG | Testing | 105 |
| TOMCAT | Server | 1332 |
| TornadoFX | Java FX App | 13 |
| Trove | Collections Library | 440 |
| Twitter4J | Twitter Library | 160 |
| UACalc ( Universal Algebra Calculator ) | Algebra / Mathematics | 125 |
| Vaadin | Web | 1028 |
| Vertx | JVM Library | 74 |
| VRaptor | Web | 301 |
| Vroom | Web | 12 |
| Weka | Data Mining | 1228 |
| WindChill | product lifecycle management (PLM) | 2831 |
| WordCram | Text Analysis | 35 |
| Wro4J | Web Resource Optimizer | 336 |
| XBee | Electronics / Radio | 102 |
| XMLUnit | Testing | 56 |
| XQuery | XML | 25 |
| XStream | JSON XML | 309 |
| Yacy | Peer to Peer Search Engine | 792 |
| ZKoss (ZK) | Web | 1629 |
| ZXing | BarCode Image Processing | 189 |
