Learn how to use Servlets and JSPs to ensure a user is authenticated and has started a valid session before accessing any resources.
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Baeldung Author
baeldung
This is the standard author on the site. Most articles are published by individual authors, with their own profiles, but when multiple people have a strong contribution, we publish collectively here.
Here's what I've written (so far):
Baeldung on Java
- All
- Weekly Review (514)
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- Java (142)
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- Persistence (96)
- Java IO (92)
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- Java Collections (73)
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- Algorithms (69)
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- Series (56)
- Java Dates (52)
- JPA (51)
- Reactive (49)
- Maven (47)
- HTTP Client-Side (46)
- Java Map (45)
- Spring Cloud (42)
- Java Numbers (41)
- Java Streams (40)
- Java Array (40)
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- Jackson (28)
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- XML (18)
- Web Services (17)
- Groovy (16)
- Spring WebFlux (15)
- Java Web (11)
- Artificial Intelligence (8)
- Docker (7)
- Spring AI (1)
- News (1)
Java Missing Return Statement
Filed under Core Java
Explore some examples of missing return statements in Java.
Enable Logging for Spring Security
Filed under Logging, Spring Security
Leran how to modify the Spring Security logging level
Producer-Consumer Problem With Example in Java
Filed under Algorithms, Java Concurrency
A quick and practical guide to Producer-Consumer problem in Java.
GraphQL vs REST
Filed under REST, Web Services
GraphQL and REST can be used to enable the same integrations between different parts of our systems. We compare the two approaches to see how they have benefits in different situations.
Looking for a Java Developer with Spring Experience (Remote) (Part Time) (not open)
Filed under Java
Looking for a Java Dev with Spring experience to join the Baeldung team.
Create an Empty Map in Java
Filed under Java Map
Learn how to create empty maps in Java
Document Enum in Swagger
Filed under Spring Web
Learn how to document enum in Swagger using the Maven plugin and verify the generated JSON document in the Swagger editor.
Spring @Autowired Field Null – Common Causes and Solutions
Filed under Spring
Learn about an error that would cause a NullPointerException when we unintentionally mix Spring injection with objects we create by calling their constructors.