RFR: 8280409: JarFile::verifiableEntry can fail with NPE accessing ze.getName() [v2]

[Lance Andersen]

On Tue, 8 Feb 2022 15:55:50 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> ze can't be null here.

Actually it can be:  Consider the following:


        try (JarFile jf = new JarFile(SIGNED_VALID_ENTRY_NAME_JAR.toFile(), true)) {
            var ze = new ZipEntry("org/gotham/Batcave.class");
            var ex= expectThrows(ZipException.class,
                    () -> jf.getInputStream(ze) );
            // Validate that we receive the expected message from
            // JarFile::verifiableEntry when ZipEntry::getName returns null
            assertTrue( ex != null && ex.getMessage().equals("Error: ZipEntry should not be null!"));
        }


The above code does generate the error.

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PR: https://git.openjdk.java.net/jdk/pull/7348