Jvm Questions

Learn how to fix java.lang.UnsupportedClassVersionError in Java including JDK vs JRE differences and how to set PATH variables correctly.

Learn about the Xms and Xmx parameters in the Java Virtual Machine their default values and how they impact performance.

Learn effective methods for writing and running microbenchmarks in Java with code examples and expert tips on best practices.

Learn how to check if your Java application is running in a 32bit or 64bit JVM with code examples and troubleshooting tips.

Learn effective strategies to tackle the java.lang.OutOfMemoryError Java heap space error in Java Swing applications including memory management tips.

Explore the practical differences between java server and java client options including performance startup time and use cases.

Explore why your custom BigInteger implementation outperforms JDKs version including JIT optimizations and performance insights.

Explore the use cases for implementing finalize in Java its reliability and alternatives for resource cleanup.

Discover the key differences between JVM JDK JRE and OpenJDK and learn how each component plays a role in Java programming.

Learn how to set up a proxy server for the Java Virtual Machine JVM to enable internet connectivity for your applications.

Explore the concepts of Young Old and Permanent Generations in Java heap memory management and their interactions for optimized performance.

Learn how to resolve the Could not reserve enough space for object heap error in Java with effective troubleshooting steps and solutions.

Learn about XXMaxPermSize its role in Java memory management and how to resolve PermGen OutOfMemoryError issues.

Explore the differences between a threads context class loader and a standard class loader in Java including their usage and implications.

Learn the purpose of the JVM option Xss which sets thread stack size and understand its impact on Java application performance.

Learn why the JavaLaunchHelper warning occurs on macOS with Java 7u40 and how to resolve it effectively.

Discover how to retrieve and display all running threads in the Java Virtual Machine including their Thread and Class objects with a code example.

Learn how to obtain a thread and heap dump from a child Java process on Windows using detailed methods and code snippets.

Discover the programming languages behind the Java compiler javac and the Java Virtual Machine JVM. Learn their architecture and functionality.

Learn how to run a Java application from the Windows command line including code examples and troubleshooting tips.