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<p>Hi Chris,</p>
<p><br>
</p>
<p>> <font size="2"><span style="font-size:10pt">Do you know why it doesn't decompile the code? I see in your output:</span></font><br>
</p>
<p><br>
</p>
<p>Thanks for responding! I knew there was a problem with procyon but I thought it was packaged with diffoscope. However, it is not. I manually updated procyon to the
<a href="https://github.com/mstrobel/procyon/releases/tag/v0.6.0" class="x_OWAAutoLink">
latest release</a> as of today and it does not throw an exception anymore.</p>
<p><br>
</p>
<p>> <font size="2"><span style="font-size:10pt">diffoscope tries procyon first and determines whether that shows any<br>
difference. If it doesn't, it will fallback to javap. (And then to<br>
hexdump.)</span></font></p>
<p><br>
</p>
<p>Sounds good! Thank you!<br>
</p>
<p><br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Chris Lamb <chris@reproducible-builds.org><br>
<b>Sent:</b> Thursday, July 25, 2024 2:11:37 PM<br>
<b>To:</b> Aman Sharma<br>
<b>Cc:</b> diffoscope<br>
<b>Subject:</b> Re: [diffoscope] diffoscope (JVM bytecode) is not supported for Java 21</font>
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<font size="2"><span style="font-size:10pt;">
<div class="PlainText">Hello Aman,<br>
<br>
> I have been using diffoscope to diff between Java classfiles. However, <br>
> it seems to be unsupported for JDK >= 21 because procyon fails to <br>
> decompile the code.<br>
<br>
Do you know why it doesn't decompile the code? I see in your output:<br>
<br>
> │┄ Command `'procyon -ec {}'` failed with exit code 1. Standard output:<br>
<br>
Can you run that on the command line? In the first instance, it would<br>
be great to get confirmation that your procyon installation works<br>
fine. Or, putting it another way: if procyon cannot disassemble the<br>
code, there is very little that diffoscope can do.<br>
<br>
> With JDK 17, diffoscope either shows the diff between the disassembled <br>
> output or decompiled output (side question, how does it decide between <br>
> the two?).<br>
<br>
diffoscope tries procyon first and determines whether that shows any<br>
difference. If it doesn't, it will fallback to javap. (And then to<br>
hexdump.)<br>
<br>
<br>
Best wishes,<br>
<br>
-- <br>
o<br>
⬋ ⬊ Chris Lamb<br>
o o reproducible-builds.org 💠<br>
⬊ ⬋<br>
o<br>
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