Java Native Compiler in depth

Learn how the macOS default toolchain uses Apple clang to compile native binaries for Java native compilation, install command line tools with Xcode, and verify the toolchain setup.

Discover how to install the Linux default toolchain, GCC, by using apt and build essentials on Ubuntu, verify compilers, and compile a hello world to a native binary.

Set up the Windows default toolchain with MSVC by installing Visual Studio Community, using CL from the command line, and configuring PATH with the vcvars script.

Set up a cross-platform C++ development environment with Eclipse CDT across macOS, Linux, and Windows, and learn to build with make, run from the terminal, and integrate Java Native Interface.

Explore file permissions and attributes for executable binaries in macOS and Linux, using ls and chmod, and build shell scripts to automate Java native image tasks.

Learn to set up GraalVM native image on macOS, install the native image tool, build a native executable from a Java project, and run it with classpath and system properties.

Explore how GraalVM native image compiles a Java application with a main method into a native executable, delivering faster startup and a smaller memory footprint, with Swing and JavaFX limited.

Set up GraalVM native image on Linux Ubuntu. Install OpenJDK 17, configure JAVA_HOME, and install native image with Graal updater, then compile hello world Java program to native executable.

Learn to download, install, and set up GraalVM native image on Windows 10, configure environment variables and paths, and install the required toolchains for native compilation.

Learn to create a hello world Java app and compile it to a native executable using the native image tool, including prerequisites, toolchains, path setup, and classpath options.

Learn how a simple hello world compiles with native image to a native executable, examine the toolchain, class analysis, and image composition including code area, image heap, and reflection considerations.

Explore native image build stages that convert a simple Java hello world into a native executable, detailing initialization, analysis, building universe, parsing, inlining, compiling, and linking.

Explore native image build output options and expert flags, including booleans with plus or minus, to enable code and heap breakdowns, colorful output, and build output prefixes.

Learn how terminal pipelining and redirection enable feeding input to Java programs via standard input, piping outputs, and redirecting results to files, with practical examples of scanners and native image.

Explore using the Eclipse IDE external tool to run native image for Java, leveraging the project classpath and Eclipse's internal environment variables.

Examine Eclipse external tool variables such as Java type name, resource location, and project class path, and learn how runtime substitution and classpath setup enable native image workflows.

Learn to use the Eclipse IDE's external tool with internal variables to tailor commands by project, such as passing the project class path or environment variables as arguments.

Configure Eclipse external tool to build a native image from a Java project, specify the main class, working directory, and class path (including project class path and dependencies), generating executable.

Learn to configure the native image as an external tool in Eclipse for a Maven project, using target/classes, workspace location, and internal variables to build the binary.

Leverage Maven to manage dependencies for native-image compilation in Eclipse, using Maven Central and Guava for gcd, while Eclipse tracks the classpath and builds artifacts independently.

Explore native image classpath options, using -cp or --class-path to include directories or jar files. Learn how java.class.path reveals dependencies and how os path separators affect builds.

Discover how to create executable jar files and compile them to native images by managing classpath, maven dependencies, and ensuring a manifest with the main class.

Examine how the Java reflection API enables dynamic class loading and reflective method invocation, and how native image analyzes static versus runtime reflection for executable generation.

Explore how GraalVM's tracing agent captures dynamic features and reflection to generate native image configuration files, enabling ahead-of-time compilation of Java apps.

Trace dynamic accesses with the native image agent to generate json config files for reflection, JNI, and resources. Use config merge to append runs into meta inf/native image.

Learn how the tracing agent writes configuration periodically during JVM runs, using config write period and initial delay, and how to place files in the meta-inf native image directory.

Learn how to handle text resources when compiling Java to native executables, including bundling text files in jars, classpath access, reading them with Scanner, and encoding considerations.

Learn to load text resources platform-independently with the class loader and getSystemResource, reading them via an input stream into a scanner and embedding them in the native image.

Learn to use the class loader and input streams to load resources from the classpath, embed them into a native image, and build a self-contained, platform-independent Java application.

Learn how the Java native interface (JNI) enables calling C++ from Java, load native libraries at runtime, and embed binaries in a native image, while addressing runtime file path needs.

Extract and embed the JNI dynamic library from the executable, load it via a platform independent resource path using the class loader, and cache the binaries for portability.

Learn how to cache JNI dynamic libraries in the user home directory to enable platform-independent loading of native methods, using class loaders and cached binaries.

Design a command line Java app using the JCommander framework, mapping flags to objects with annotations and a fluent builder. Prepare for native image compilation by configuring reflection and dependencies.