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Exam Information
Official specifications published by Oracle
Exam Format
150 min
70
66%
Professional
Registration
$245 USD
Pearson VUE or online proctoring
Validity
No expiration
Oracle certifications do not expire; Can upgrade to newer Java EE/Jakarta EE versions
1Z0-900 Exam Topics and Domains
1Z0-900 is organized into 14 weighted domains. Expect to work with EJB Container, Application Server, Batch API, Bean Validation API, and more.
1
Understand Java EE Architecture
8%
Java EE Architecture and Components
Java EE Platform OverviewJava EE Design Patterns
- Describe Java EE architecture and components
- Identify the correct Java EE technology for a given scenario
- Understand the role of containers and servers
2
Manage Persistence using JPA Entities and Bean Validation
15%
JPA Entity Management
Create JPA Entities and ORMEntity RelationshipsJPQL and Criteria API
- Create JPA Entity and Relationship Object-Relational Mappings
- Use Entity Manager to perform database operations
- Handle transactions and locking with JPA entities
- Create and execute JPQL statements
Bean Validation
Validation Constraints
- Apply Bean Validation constraints
- Create custom validators
- Handle validation errors
3
Implement Business Logic by Using EJBs
12%
Enterprise JavaBeans
Session BeansMessage-Driven BeansTimer Service
- Create session EJBs
- Use dependency injection in EJBs
- Configure EJB timers
- Implement message-driven beans
4
Use Java Message Service API
8%
JMS Fundamentals
JMS ArchitectureJMS API Usage
- Understand JMS architecture
- Create JMS producers and consumers
- Configure message delivery
5
Implement SOAP Services by Using JAX-WS and JAXB APIs
7%
SOAP Web Services
JAX-WS ImplementationJAXB Data Binding
- Create SOAP web services
- Generate WSDL from Java
- Use JAXB for XML binding
6
Create Java Web Applications using Servlets
8%
Servlet Technology
Servlet Lifecycle and ConfigurationRequest and Response Handling
- Understand servlet lifecycle
- Handle HTTP requests and responses
- Implement filters and listeners
7
Create Java Web Applications using JSPs
6%
JavaServer Pages
JSP Syntax and DirectivesJSTL and Custom Tags
- Create JSP pages
- Use JSTL tags
- Implement custom tags
8
Implement REST Services using JAX-RS API
10%
RESTful Web Services
JAX-RS ResourcesJAX-RS Client API
- Create RESTful resources
- Handle different media types
- Implement JAX-RS clients
9
Create Java Applications using WebSockets
5%
WebSocket API
WebSocket Endpoints
- Create WebSocket endpoints
- Handle WebSocket lifecycle
- Implement bidirectional communication
10
Develop Web Applications using JSFs
10%
JavaServer Faces
JSF Architecture and LifecycleJSF Components and TagsManaged Beans and CDI Integration
- Describe JSF architecture, lifecycle and navigation
- Use JSF Tag Libraries
- Handle localization and produce messages
- Use Expression Language and interact with CDI beans
11
Secure Java EE 7 Applications
8%
Java EE Security
Authentication and AuthorizationDeclarative and Programmatic Security
- Configure authentication
- Implement authorization
- Secure web services
12
Use CDI Beans
8%
Contexts and Dependency Injection
CDI Bean ManagementCDI Advanced Features
- Create CDI Bean Qualifiers
- Implement Producers and Disposers
- Use Interceptors and Decorators
- Handle CDI Events and Stereotypes
13
Use Concurrency API in Java EE 7 Applications
4%
Concurrency Utilities
Managed Executors
- Use managed executor services
- Submit concurrent tasks
- Handle task lifecycle
14
Use Batch API in Java EE 7 Applications
3%
Batch Processing
Batch Jobs
- Define batch jobs
- Implement chunk processing
- Handle job lifecycle
How do I earn this certification?
Passing 1Z0-900 earns the Oracle Certified Professional, Java EE 7 Application Developer certification. It sits in the Java Enterprise Edition track.
Next Level Options
- Spring Professional - VMware Spring Professional
- Jakarta EE - Jakarta EE Developer (when available)
Alternative Paths
- 1Z0-819 - Java SE 11 DeveloperModern Java language features
- 1Z0-829 - Java SE 17 DeveloperLatest LTS Java version
- 1Z0-149 - Oracle Database PL/SQL DeveloperDatabase integration skills
Practice with Precision
The PlanetCert Simulator mirrors the real exam environment with authentic questions and timed pressure.
How to study for this exam?
The most effective way to prepare for 1Z0-900 is by using the PlanetCert Simulator to practice questions and review detailed explanations.
What's changed on this exam?
Current Status
- ACTIVE
- Last content update: 2025-01-15
Updates
- WebSockets API 1.1 Key topic for real-time communication questions • Release date: 2013-06-12
- Batch Processing 1.0 New in Java EE 7, important for batch job questions • Release date: 2013-06-12
- Concurrency Utilities 1.0 Managed executor services are exam topics • Release date: 2013-06-12
Who should take this exam?
- Java SE 8 Programmer certification
- Experience with Java EE development
- Understanding of enterprise application architecture