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JBE is a bytecode editor suitable for viewing and modifying java class files. It is
built on top of the open-source jclasslib bytecode viewer by ej-technologies. For verification and exporting the class files, JBE uses the the Bytecode Engineering Library by Apache's Jakarta project.
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JBE requires Java 1.5 to run.
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It uses the standard mnemonics for JVM opcodes as instruction names.
Jumps are absolute, labels are shown as line numbers. The cases/targets
of tableswitch and lookupswitch instructions should be preceded by a tab or a space.
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Class names should be written using the Java class file format
conventions, so java.lang.String becomes java/lang/String
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Type information is also written as they appear in class files (e.g. the descriptor I speficies an integer, [Ljava/lang/Thread; is an array of Threads, etc.).
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To add a constant, method, interface or field,
select the appropriate section in the left pane.
A form for adding th appropriate attribute is displayed on the main pane.
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To remove a constant, method, interface or a field, select
it in the left pane. A delete button appears on the main pane.
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To add or remove an exception select the method's exception
table tab. There, a form is included for adding an exception.
An exception can be removed via the delete button.
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There is no global save, all changes are directly applied to the class
file after adding/deleting/modifying attributes. To return to the original file, select the appropariate menu item or button ("Revert to original
class file").
Download:
Java Bytecode Editor 0.1.1
Changes from 0.1b:
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fix for saving InvokeInterface instruction by Carl Rumachik
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