All Versions
Latest Version
Avg Release Cycle
134 days
Latest Release
30 days ago

Changelog History
Page 1

  • v5.5

    January 26, 2020

    New features

    • 👍 Switched the look and feel to FlatLaf for a more modern appearance and better HiDPI support
    • ➕ Added a dark mode that can be activated persistently by selecting with "File->Dark mode" in the main menu

    🌐 Dark mode

    🐛 Bug fixes

    • Constant pool and class member nodes in the class file structure tree were expanded when selected
  • v5.4

    September 24, 2019

    New features

    • 👌 Support NestHost and NestMembers attributes new in Java 11+
    • 🔌 IDEA plugin: Improved method for finding class files, decompiled classes and Scala classes can now be shown
    • 🏁 HiDPI on Windows is supported
    • 🍎 Windows and macOS media files are now bundled with a JRE (as of 5.4 Java 13)
    • 🍎 macOS DMG is now notarized
  • v5.3.2

    June 03, 2019

    New features

    • ➕ Added the ability to read truncated class files
    • 👌 Support class file version numbers for JDK 12 and 13
  • v5.3.1

    December 27, 2018

    Bug fixes

    • 🔌 Table row heights were too small in the IDEA plugin
  • v5.3

    June 18, 2018

    New Features

    • 👌 Support for reading class files with major versions 54 and 55 (Java 10 and 11)
    • 👌 Support for dynamic class file constants in Java 11
    • ➕ Added a "Save all open classes" action to the menu. This is useful for extracting class files from Java 9+ JDKs.

    🐛 Bug fixes

    • 🛠 Fixed exception when running the GUI from the IDE with Java 9
    • 💻 After adding a classpath entry in the classpath browser, the browser was empty.
    • 💻 When showing the classpath browser, the tree was re-scanned even if the classpath was unchanged
    • 🛠 Fixed Java 9 warning for illegal reflective access when debug mode is enabled
    • 🛠 Fixed wrong attribute length when writing ModuleTargetAttribute
    • Branch instructions were marked as invalid in code attributes if switch instructions were present in between the branch instruction and the target instruction
  • v5.2.1

    November 02, 2017

    Bug fixes

    👌 Support running with Java 9 on macOS

  • v5.2

    July 10, 2017

    New features

    • 💻 The class browser now has a module path and a class path tab

    🌐 module path

    • Support for CONSTANT_Module_Info and CONSTANT_Package_info structures in Java 9 class files
    • 👌 Support for all new class file attributes that occur in the Java 9 module-info.class file: ModulePackages, ModuleMainClass, ModuleTarget, ModuleHashes and ModuleResolution.

    🌐 module-info.class

    🐛 Bug fixes

    • Could not use relative path names as arguments for invoking jclasslib
    • Data for unknown attributes was not written
    • Auto-resize in table attribute details panels was broken (regression in 5.0)
    • ⚡️ Class path browser was not updated after changing the JRE home directory in the class path setup dialog
  • v5.1

    February 04, 2017

    Major changes

    • ➕ Added a plugin for IntelliJ IDEA that can be installed via the plugin manager. The action in the "View menu"
      can be invoked when a Java, Groovy or Kotlin file is open in the editor.

    🌐 IntelliJ IDEA action

    The bytecode will be shown in the "jclasslib" tool window on the right hand side. Multiple class files can be open at the same time.

    🌐 IntelliJ IDEA window

    Other changes

    • ➕ Added support for the SourceDebugExtension class file attribute
    • When opening a class file, select the "General Information" node

    🐛 Bug fixes

    • Reload class file action did not work (regression in 5.0)
    • LocalVariableTable attribute: "Length" column always displayed "10" (Regression in 5.0)
    • System property did not work anymore (Regression in 5.0)
  • v5.0

    June 13, 2016

    Major changes

    • 👍 jclasslib's code base has been converted to the Kotlin programming language. Parts of the code base have been rewritten to better fit with Kotlin's programming paradigms. If used as a library, all classes continue to be usable from Java. However, many classes have been renamed and restructured.
    • 💻 The jclasslib UI now uses draggable tabs instead of the outdated internal frames in previous versions, a window can be split horizontally, vertically or in a 4-way split

    💻 constant pool filters

    • 🏁 Multiple top-level windows with separate class path configurations are now supported
    • 👍 Browsing classes in the runtime library of Java 9 JREs is now supported
    • 👍 Drag and drop of class files and JAR files into a jclasslib window is now supported
    • Filtering for the constant pool

    constant pool filters

    Other changes

    • Inline links to the JVM spec in the bytecode display
    • Selectable text in the bytecode display
    • When reloading a class file, the current selection is always retained

    🚀 Deployment changes

    • 💻 Java 8 is now required to run the jclasslib UI
    • 🏁 Signed Windows installer and signed DMG for Mac OS X
  • v4.3.1

    January 10, 2016

    Bug fixes

    Regression: NOP opcodes broke the bytecode display