Ensure that Java class files are named .class on the filesystem before passing them to javap(1).

import re

import os.path

import logging

import shutil

from diffoscope.tools import tool_required

from diffoscope.difference import Difference

from diffoscope.exc import RequiredToolNotFound

from diffoscope.tempfiles import get_named_temporary_file

from diffoscope.tools import tool_required

from .utils.file import File

from .utils.command import Command, strip_ansi_escapes

class Javap(Command):

    def __init__(self, path, *args, **kwargs):

        super().__init__(path, *args, **kwargs)

        # Ensure that class files are named .class on the filesystem as javap

        # will not accept files with other extensions.

        if not path.endswith(".class"):

            self.tempfile = get_named_temporary_file(suffix=".class")

            logger.debug(f"Copying {path} to {self.tempfile.name}")

            shutil.copy(path, self.tempfile.name)

            path = self.tempfile.name

        # Save the realpath for filter()

        self.real_path = os.path.realpath(path)

        super().__init__(path, *args, **kwargs)

    @tool_required("javap")

    def cmdline(self):

        return [