The following are features currently present/available in latest release of jdec.
[please click here to check additionalUI features]
Decompiling a java class :
This is main feature of jdec. jdec has been tested with jdk provided from Sun
This point is being stressed because the java package provided from GNU which comes
as part of some Linux installations, doesnt launch jdec properly. So users who have a different jdk,
other than that from Sun, are advised to install jdk provided by Sun.
Please click on the below link to pick up the right jdk:
Download Sun jdk from Sun's web site
[Sun Jdk is a required software installation for jdec]
jdec is also capable of decompiling an entire jar
Also if the user thinks the jar is too big,then
he can go and update Decompiler Filters from the UI
to get results faster.
It is possible to selective decompile single class
from within a jar. All that is required is to specify
a jar file path and qualified name of class
Jdec will automatically decompile the file The advantage
is that there is no need to decompress or decompile the
entire jar for this.
Decompiling 2 Versions:
It is possible to decompile 2 versions of the same class
using jdec 1.2. All that is required is to specify
where to pick up the 2 class files from. The source can be
either a jar or a folder. Jdec will then wither scan the jar
Or read from folder and show the result in a split pane.
However this version does not support the diff features offered
by a diff tool like winmerge for example.
jdec can also produce the JVM instructions for a class file.
This is similar to the output produced by javap provided by Sun.
The Disassmebled output produced by jdec shows in a detailed way
the method bytecodes produced by javac.[java compiler]
Local variable information:
jdec can display local variable information like name,start and end
index of variable.For this the java file must be compiled using -g
This information is generally not useful to the end user at all
because it only displays offset ranges and names.It can be useful
to developers of jdec for debugging problems with local variables
Exception Table Information.:
jdec can display exception table infomation.This information is displayed
when user disassembles a class file
By setting a flag "Interpret_Exception_Table" in config.properties to true
jdec can dispplay more detailed information about exception table.
Whenever a java file contains try/catch/finally blocks,
java compile describes these in terms of exception table