Java-9 Questions

Learn how to resolve java.lang.NoClassDefFoundError for JAXBException in Java 9 caused by module system changes. Follow our stepbystep guide

Explore the changes in string concatenation behavior in Java 9 and 10 affecting arrayidx a. Get insights into the differences with code examples.

Learn how to resolve java.lang.NoClassDefFoundError regarding javaxxmlbindannotationXmlSchema during Android SDK installation.

Learn the key differences between List.of and Arrays.asList in Java including performance mutability and use cases.

Explore dropin replacements for deprecated JPMS modules containing Java EE APIs to ensure compatibility and maintain functionality in your projects.

Learn about illegal reflective access in Java 9 its causes warnings emitted and how to handle this issue effectively.

Learn how to fix InaccessibleObjectException in Java 9 especially when using libraries like Spring Hibernate and JAXB. Stepbystep guide with code examples.

Discover the reasons behind the deprecation of the Observer in Java 9 and explore modern alternatives for implementing the observer pattern.

Explore how to implement orElseOptional for Java Optional and understand its implications and best practices.

Learn how to fix the ClassCastException in Spring Boot when using WSDL2Java generated sources. Stepbystep guide and code examples provided.

Learn about the release flag in Java 9s javac its differences from source and target and its advantages for compatibility.

Understand why Map.of Set.of and List.of in Java 9 dont allow null keys and values. Explanation and coding examples included.

Learn how to fix the NoClassDefFoundError in sdkmanager for Android SDK using Java 9 without reverting to Java 8.

Learn how Java 9 optimizes String concatenation using invokedynamic calls as defined in JEP 280. Explore differences and benefits.

Explore the differences between addexports and addopens in Java 9 and understand their roles in the module system.

Learn the key differences between requires and requires transitive module statements in Java 9 modules including examples and best practices.

Learn how to properly exit JShell and return to the command line interface with easy steps and solutions.

Exploring the necessity and consequences of adopting modules in Java 9 during migration from Java 8.

Learn how to suppress the Illegal Reflective Access warning in Java 9 without using JVM arguments. Expert tips and insights included.

Explore alternatives to the deprecated javax.activation package in Java 9. Learn about potential replacements and how to migrate your code accordingly.