From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x243.google.com (mail-lj1-x243.google.com [IPv6:2a00:1450:4864:20::243]) by sourceware.org (Postfix) with ESMTPS id 58FA4386F465 for ; Tue, 23 Jun 2020 00:05:41 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 58FA4386F465 Received: by mail-lj1-x243.google.com with SMTP id q19so21401452lji.2 for ; Mon, 22 Jun 2020 17:05:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=2RwjbHr7+SJtcO4cjUNCNtPXaRZdYfTQFMirBd0+GmE=; b=ehStFS8K6ZwkUmB+4lz/g5ANaspFFKrCbxRAuqlyHKiKaoHUeD5PPcozt10hsEl7Wy V46sSD0R/KYyVAFEmaeKHGQja1KKKqUUAiPNF0btj6Q9w5b5Cq/PMjopisKNLxprYYDT D52VDHMyscuigiHXHUQRRSUy0UORYrVe9A9/QAxwkry1+nGdUWteX2uQkKxr5Yz3DgUo Z0KGWgOB/e1yo0Equdu2HOL2zgYFDMroUHeFFl5o8/BXlnsd8xt1inWi1cZXMdQiV1+w dqEsUR6LioXqhcXO+oek0jDwKHxoH+xsff+nydTgH/ryUDSYhoxR+B351DqBvzhVHsjh iSrQ== X-Gm-Message-State: AOAM532jCAer/BxChAk58zWrR7rxZCp5/xINfMSfzlgGLLXJMzCb5yq2 Ckutbo8woiS+CTq9Cy0p+1MDx2Efh08QUen5IdZ5d8icRwk= X-Google-Smtp-Source: ABdhPJwxotn76H1DU/jZIt7oRKl2j+NPDVNf8MYN7uKvssd1SzDstRc/mJug5YeNDtrBrwWJM6ZCfq2tHngcMRRraYM= X-Received: by 2002:a05:651c:2043:: with SMTP id t3mr286112ljo.0.1592870740018; Mon, 22 Jun 2020 17:05:40 -0700 (PDT) MIME-Version: 1.0 References: <60f49197-5651-bf5d-fa25-9c7472874875@bothner.com> In-Reply-To: <60f49197-5651-bf5d-fa25-9c7472874875@bothner.com> From: Duncan Mak Date: Mon, 22 Jun 2020 20:05:03 -0400 Message-ID: Subject: Re: Going from Scheme list to Java array To: Per Bothner Cc: kawa mailing list X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: kawa@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Kawa mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jun 2020 00:05:43 -0000 On my box, I'm running on JDK 11 on a Mac when I get the error: $ java -version openjdk version "11.0.7" 2020-04-14 OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.7+10) OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.7+10, mixed mode) On Mon, Jun 22, 2020 at 8:02 PM Per Bothner wrote: > On 6/22/20 9:26 AM, Duncan Mak via Kawa wrote: > > (define (into-array l ::java.util.List array-type) > > (let* ((size (length l)) > > (array ((primitive-array-new array-type) size))) > > (l:toArray array))) > > > > (display (into-array (list 1 2 3) )) > > > > When I run this in Kawa 3.1.1, this is what I see: > > > > foo.scm:4:5: warning - more than one possibly applicable method 'toArray' > > in java.util.List > > candidate: Type java.lang.Object[] java.util.List.toArray(ClassType > > java.util.function.IntFunction) > > candidate: Type java.lang.Object[] > > java.util.List.toArray(java.lang.Object[]) > > Not sure what is going on here. When I use Java 8, there is no problem. > When I use Java 14, I get the same error. So it seems like something > got added (after Java got default interface methods). However, I don't see > it in the documentation here: > > https://docs.oracle.com/en/java/javase/14/docs/api/java.base/java/util/List.html > -- > --Per Bothner > per@bothner.com http://per.bothner.com/ > -- Duncan.