Source: https://seerepo.com/compare/apache/dubbo/vs/apereo/cas
Markdown source: https://seerepo.com/compare/apache/dubbo/vs/apereo/cas.md
Description: dubbo and cas share 21 technologies: curator-recipes, org.apache.tomcat.embed:tomcat-embed-websocket, Spring Boot, tomcat-embed-core, tomcat-embed-el, Spring, jakarta.servlet:jakarta.servlet-api, org.springframework.boot:spring-boot-starter-validation, Hibernate, jakarta.validation:jakarta.validation-api, logback-classic, micrometer-registry-prometheus, micrometer-tracing-bridge-brave, micrometer-tracing-bridge-otel, zipkin-reporter-brave, io.micrometer:micrometer-core, io.micrometer:micrometer-observation, org.slf4j:slf4j-api, OpenTelemetry, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

# dubbo vs cas

dubbo and cas share 21 technologies: curator-recipes, org.apache.tomcat.embed:tomcat-embed-websocket, Spring Boot, tomcat-embed-core, tomcat-embed-el, Spring, jakarta.servlet:jakarta.servlet-api, org.springframework.boot:spring-boot-starter-validation, Hibernate, jakarta.validation:jakarta.validation-api, logback-classic, micrometer-registry-prometheus, micrometer-tracing-bridge-brave, micrometer-tracing-bridge-otel, zipkin-reporter-brave, io.micrometer:micrometer-core, io.micrometer:micrometer-observation, org.slf4j:slf4j-api, OpenTelemetry, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

- [apache/dubbo](https://seerepo.com/r/apache/dubbo): The java implementation of Apache Dubbo. An RPC and microservice framework.
- [apereo/cas](https://seerepo.com/r/apereo/cas): Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

## What they share and what sets them apart

- In common: curator-recipes, org.apache.tomcat.embed:tomcat-embed-websocket, Spring Boot, tomcat-embed-core, tomcat-embed-el, Spring, jakarta.servlet:jakarta.servlet-api, org.springframework.boot:spring-boot-starter-validation, Hibernate, jakarta.validation:jakarta.validation-api, logback-classic, micrometer-registry-prometheus, micrometer-tracing-bridge-brave, micrometer-tracing-bridge-otel, zipkin-reporter-brave, io.micrometer:micrometer-core, io.micrometer:micrometer-observation, org.slf4j:slf4j-api, OpenTelemetry, org.apache.logging.log4j:log4j-api, org.apache.logging.log4j:log4j-core
- Only in dubbo: JAX-RS, hazelcast, org.springframework:spring-jdbc, com.alibaba.nacos:nacos-client, org.apache.zookeeper:zookeeper, javax.cache:cache-api, dubbo-registry-nacos, dubbo-spring-boot-starter, org.springframework:spring-tx, javax.servlet:javax.servlet-api, org.apache.dubbo:dubbo, org.springframework.security:spring-security-bom, spring-security-oauth2-authorization-server, spring-security-oauth2-client, compiler, javax.validation:validation-api, commons-logging, io.opentelemetry:opentelemetry-bom, log4j-slf4j-impl, org.apache.logging.log4j:log4j-slf4j2-impl, org.springframework.boot:spring-boot-starter-logging, Prometheus, sentinel-transport-simple-http, io.micrometer:micrometer-tracing, log4j:log4j, io.micrometer:micrometer-registry-otlp
- Only in cas: apache-client, com.mysql:mysql-connector-j, curator-client, H2 Database, hsqldb, jakarta.jms-api, jtds, kafka-clients, lettuce-core, MariaDB, MongoDB, ojdbc11, org.springframework.boot:spring-boot-jdbc, PostgreSQL, pyzmq, s3, spring-boot-cache, spring-boot-starter-data-mongodb, spring-jms, com.github.ben-manes.caffeine:caffeine, software.amazon.awssdk:dynamodb, com.hazelcast:hazelcast, org.springframework.kafka:spring-kafka, org.apache.cassandra:java-driver-core, etcd, org.apache.pulsar:pulsar-client-api, org.springframework.amqp:spring-rabbit, com.microsoft.sqlserver:mssql-jdbc, com.zaxxer:HikariCP, MySQL, org.apache.curator:curator-framework, Postgres, software.amazon.awssdk:sqs, Flask, graal-sdk, jetty-http2-server, org.thymeleaf:thymeleaf-spring6, polyglot, spring-boot-integration, spring-boot-starter-thymeleaf, spring-cloud-bus, spring-cloud-config-client, spring-cloud-config-server, werkzeug, org.eclipse.jetty:jetty-alpn-java-server, Normalize.css, hibernate-hikaricp, org.springframework.data:spring-data-commons, spring-data-cassandra, spring-data-mongodb, jakarta.persistence:jakarta.persistence-api, itsdangerous, jose4j, nimbus-jose-jwt, oauth2-oidc-sdk, spring-boot-session, spring-boot-session-data-redis, spring-boot-session-jdbc, spring-session-data-redis, spring-session-jdbc, org.springframework.security:spring-security-cas, org.pac4j:pac4j-core, org.pac4j:pac4j-oidc, software.amazon.awssdk:secretsmanager, com.microsoft.azure:msal4j, com.azure:azure-identity, software.amazon.awssdk:sts, org.springframework.ai:spring-ai-starter-mcp-server-webmvc, angus-mail, groovy-templates, jakarta.mail, jdom2, jinja2, jsoup, markupsafe, org.springframework.boot:spring-boot-starter-mail, org.apache.velocity:velocity-engine-core, Thymeleaf, com.google.zxing:core, com.sendgrid:sendgrid-java, com.samskivert:jmustache, commons-validator, org.hibernate.validator:hibernate-validator, cloudwatchlogs, jul-to-slf4j, log4j-jcl, log4j-layout-template-json, logback-access-common, metrics-core, micrometer-jakarta9, micrometer-java21, micrometer-registry-cloudwatch2, micrometer-registry-elastic, micrometer-registry-influx, micrometer-registry-otlp, org.springframework.boot:spring-boot-starter-actuator, spring-boot-admin-starter-client, spring-boot-admin-starter-server, spring-boot-starter-jetty, spring-boot-starter-log4j2, spring-cloud-starter-consul-discovery, spring-cloud-starter-netflix-eureka-client, spring-cloud-starter-zookeeper-discovery, software.amazon.awssdk:ssm, ch.qos.logback:logback-core, software.amazon.awssdk:cloudwatch

## Side by side

| | dubbo | cas |
|---|---|---|
| Size | 482,221 lines written, 2,425 code files | 727,274 lines written, 5,293 code files |
| Who writes it | 0.1% of its commits signed by AI. With GitHub Copilot and Claude Code | 0% of its commits signed by AI. With GitHub Copilot |
| Activity | Last push November 3, 2026, 8,430 commits, 41,572 stars | Last push November 12, 2026, 31,593 commits, 11,395 stars |
| Tests | 1,630 test files. 50.3% of its code files have a test that imports them | 3,193 test files. 48.4% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, dubbo or cas?

cas, with 727,274 lines written; dubbo has 482,221.

The proof: [apereo/cas's code at commit 990ad16](https://github.com/apereo/cas/tree/990ad1606dac46925463de45758cd3373efa997e)

### Which has more GitHub stars, dubbo or cas?

dubbo, with 41,572 stars; cas has 11,395.

The proof: [apache/dubbo on GitHub](https://github.com/apache/dubbo)

### Which has more tests, dubbo or cas?

cas, with 3,193 test files; dubbo has 1,630.

The proof: [apereo/cas's code at commit 990ad16](https://github.com/apereo/cas/tree/990ad1606dac46925463de45758cd3373efa997e)

### Which was updated more recently, dubbo or cas?

cas: its last push was on November 12, 2026, and dubbo's on November 3, 2026.

The proof: [apereo/cas's commits on GitHub](https://github.com/apereo/cas/commits)

### Which has more commits signed by AI, dubbo or cas?

dubbo: an AI signed 0.1% of its commits, with GitHub Copilot and Claude Code.

## Sources

- apache/dubbo: Read on November 6, 2026, at commit 2d9730c (https://github.com/apache/dubbo/tree/2d9730c6ab4358d94c6e3594fdd2dca0009fe912)
- apereo/cas: Read on November 12, 2026, at commit 990ad16 (https://github.com/apereo/cas/tree/990ad1606dac46925463de45758cd3373efa997e)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.