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.
JBE requires Java 1.5 to run.
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.
Class names should be written using the Java class file format
conventions, so java.lang.String becomes java/lang/String
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.).
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.
To remove a constant, method, interface or a field, select
it in the left pane. A delete button appears on the main pane.
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.
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
Java Bytecode Editor 0.1.1
Changes from 0.1b:
fix for saving InvokeInterface instruction by Carl Rumachik