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Core Java
Function pointer style in Java
In languages like C and C++, function pointers allow direct reference to a function, enabling callbacks, event handling, and flexible…
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Enterprise Java
Drools Chaining Approaches
Rule engines implement automated reasoning by applying rules to a set of facts. Two classical reasoning approaches are forward chaining…
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Enterprise Java
Different Log Levels for File and Console in Spring Boot
In Spring Boot applications, logging plays a critical role in monitoring and troubleshooting. By default, Spring Boot uses Logback as…
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Core Java
Implement mTLS Calls in Java
Mutual TLS (mTLS) is an enhancement of TLS where both the server and the client present and validate X.509 certificates.…
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Core Java
Comparison of Google Protobuf ByteString and Byte[]
Binary data is common in networked apps: images, protobuf payloads, encryption outputs, etc. When using Protocol Buffers in Java you…
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Enterprise Java
Spring Boot ServletContextListener Registration
In Java web applications, the ServletContextListener plays an important role in monitoring the lifecycle of the ServletContext. It allows developers…
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Core Java
HibernateException: Illegal Collection Association Fix
In Hibernate, the exception IllegalAttemptToAssociateACollectionWithTwoOpenSessionsException occurs when a collection or entity is associated with two active Hibernate sessions simultaneously. This…
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Core Java
Java Mail Inline Images in Emails Example
Sending rich emails with embedded images can significantly improve user engagement. The JavaMail API allows developers to send inline images…
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Enterprise Java
JSP Map Looping Example
In Java web apps, youâll often expose server-side data (e.g., a Map<K,V>) to a JSP for display. Let us delve…
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