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--></style></head><body lang="EN-US" link="blue" vlink="purple" style="word-wrap:break-word"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt">So to summarize: it’s true today, but don’t rely on it.</span></p><p class="MsoNormal"><span style="font-size:11.0pt"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt">Mark</span></p><p class="MsoNormal"><span style="font-size:11.0pt"> </span></p><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> Brian Goetz <<a href="mailto:brian.goetz@oracle.com">brian.goetz@oracle.com</a>> <br><b>Sent:</b> Friday, November 22, 2024 8:02 AM<br><b>To:</b> Adam Sotona <<a href="mailto:adam.sotona@oracle.com">adam.sotona@oracle.com</a>>; Mark Roberts <<a href="mailto:markro@cs.washington.edu">markro@cs.washington.edu</a>>; Chen Liang <<a href="mailto:chen.l.liang@oracle.com">chen.l.liang@oracle.com</a>>; <a href="mailto:classfile-api-dev@openjdk.org">classfile-api-dev@openjdk.org</a><br><b>Subject:</b> Re: java.lang.classfile model enumeration order</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:13.5pt;font-family:"Courier New"">This is a property of the implementation, but not something that the spec guarantees, though. Also, in the middle of a transformation pipeline, there is no longer a "classfile order" to fall back on. So it is best to not assume anything about ordering, unless the ordering is part of the semantics (like the bytecodes in a method body.)<br><br><br><br></span><span style="font-size:11.0pt"></span></p><div><p class="MsoNormal">On 11/22/2024 5:42 AM, Adam Sotona wrote:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Aptos">Hi Mark,</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Aptos">Fields and methods are included in the ClassElement stream or iterator in the same order, and this order corresponds to their order in the class file.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Aptos">This principle is common for the whole API, except for some PseudoInstructions identifying their start and stop positions in the stream by Labels. These PseudoInstructions are always streamed before respective LabelTargets.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Aptos"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Aptos">Adam</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:Aptos"> </span></p><div id="mail-editor-reference-message-container"><div><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;font-family:Aptos;color:black">From: </span></b><span style="font-size:12.0pt;font-family:Aptos;color:black">classfile-api-dev <a href="mailto:classfile-api-dev-retn@openjdk.org"><classfile-api-dev-retn@openjdk.org></a> on behalf of Mark Roberts <a href="mailto:markro@cs.washington.edu"><markro@cs.washington.edu></a><br><b>Date: </b>Friday, 22 November 2024 at 1:12<br><b>To: </b>Chen Liang <a href="mailto:chen.l.liang@oracle.com"><chen.l.liang@oracle.com></a>, <a href="mailto:classfile-api-dev@openjdk.org">classfile-api-dev@openjdk.org</a> <a href="mailto:classfile-api-dev@openjdk.org"><classfile-api-dev@openjdk.org></a><br><b>Subject: </b>java.lang.classfile model enumeration order</span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt">Are there any rules/guarantees that the order of items in ClassModel::methods() will match the order in ‘for (ClassElement ce : cm)’ for the ce elements that are MethodModel? And also for similar items down the class hierarchy?</span></p><p class="MsoNormal"><span style="font-size:11.0pt"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt">Thank you, Mark</span></p><p class="MsoNormal"><span style="font-size:11.0pt"> </span></p></div></div></div></div></blockquote><p class="MsoNormal"><span style="font-size:11.0pt"> </span></p></div></body></html>