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How does ServiceLoader and services behave in multithreaded code?

ServiceLoader Java multithreading thread-safe loading services Java services

What are alternatives to final keyword and how do they compare?

Alternatives to final keyword final keyword in Java immutability enums non-modifiable classes Java programming

How has Selector changed in recent Java versions?

Selector Java Non-blocking I/O Performance Enhancements Network Applications

When should you prefer SQL injection prevention and when should you avoid it?

SQL Injection SQL Injection Prevention Prepared Statements Parameterized Queries Web Security

What are best practices for working with method references?

Java method references best practices functional programming code readability

How does Optional behave in multithreaded code?

Optional Multithreaded Thread Safety Java Immutability

How do you use connection pooling with a simple code example?

Keywords: Java connection pooling HikariCP database connection JDBC

How does collectors impact performance or memory usage?

Keywords: Java collectors performance memory usage stream API optimization

What are common mistakes developers make with map, filter, reduce?

map filter reduce JavaScript common mistakes functional programming

How do you test code that uses CompletableFuture?

Testing CompletableFuture Java CompletableFuture Asynchronous Testing

How has ConcurrentLinkedQueue changed in recent Java versions?

ConcurrentLinkedQueue Java Concurrent Collections Java 8 Java 9 Java 11 Performance Improvements

How has ReadWriteLock changed in recent Java versions?

ReadWriteLock Java concurrency Java 8 Java 9 Java 11 Java 17 thread safety performance optimization

What are alternatives to checked vs unchecked exceptions and how do they compare?

Java exceptions checked exceptions unchecked exceptions error handling custom exceptions

When should you prefer javac and when should you avoid it?

javac Java compiler when to use javac javac advantages javac disadvantages

How do you test code that uses WebSocket API?

WebSocket API Unit Testing Integration Testing Mocking Testing Strategies

How has polymorphism changed in recent Java versions?

polymorphism Java 8 lambda expressions functional interfaces method overriding

How does jar tool behave in multithreaded code?

JAR tool multithreaded code Java Archive concurrency synchronization

How do you use TemporalAdjusters with a simple code example?

Java TemporalAdjusters Date Manipulation Java 8 Date API

What are alternatives to isolation levels and how do they compare?

Database Management Isolation Levels MVCC Optimistic Concurrency Control Snapshot Isolation Transaction Integrity

What is race conditions and visibility in Java?

Race Conditions Visibility Java Multithreading Synchronization Concurrent Programming