vscode-jvm-bytecode-viewer
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mnxn
JVM Bytecode Viewer for VSCode https://marketplace.visualstudio.com/items?itemName=mnxn.jvm-bytecode-viewer
JVM Bytecode Viewer
An extension that shows the JVM Bytecode for a given .class file.
This extension uses the javap program that comes with the Java JDK; make sure it is accessible from the PATH environmental variable.
The bytecode output windows are automatically updated when the .class file is changed on disk.
Usage
First open a compiled .class file, then do one of the following:
- Click the
Show JVM Bytecodein the title bar. - Hold
altand click theShow JVM Bytecode (Verbose)button in the title bar. - Right-click the file in the title bar and click
Show JVM BytecodeorShow JVM Bytecode (Verbose). - Right-click the file in the explorer and click
Show JVM BytecodeorShow JVM Bytecode (Verbose).
To show the bytecode of a .class file that is inside a jar, you must first open the jar file. To open the Jar file:
- Click the
Explore Jar Filein the title bar. - Right-click the file in the title bar and click
Explore Jar File. - Right-click the file in the explorer and click
Explore Jar File.
The contents of the Jar file will be shown in a tree view titled Jar Explorer in the side panel.
The Jar file can be closed by right-clicking the Jar file in the Jar Explorer and clicking Close Jar File
Configuration
| Option | Description | Default |
|---|---|---|
jvm-bytecode-viewer.defaultToVerboseOutput |
Whether the title bar button opens the verbose output by default | false |
jvm-bytecode-viewer.editorTitleBar |
Whether to show commands in the editor title bar menu | true |
jvm-bytecode-viewer.editorTitleBarContextMenu |
Whether to show commands in the editor title bar context menu | true |
jvm-bytecode-viewer.explorerContextMenu |
Whether to show commands in the explorer context menu | true |
Examples
Normal
Verbose
(VSCode Color Theme Used: Golden Dracula)
Notes
- This extension was tested with the JDK 14 version of
javap. - The verbose output of
javapis significantly more complicated than the normal output so there may be some inconsistencies with its highlighting. - If you see highlighting that you think is incorrect, please submit an issue with a screenshot.
- The Jar exploration code was adapted from https://github.com/stef-levesque/vscode-zipexplorer
Licenses
View NOTICE.md for license notices.
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