langtools/test/tools/javac/TryWithResources/TwrLint.java
author mcimadamore
Fri, 12 Nov 2010 12:34:18 +0000
changeset 7211 163fe60f63de
permissions -rw-r--r--
6970016: Clean up ARM/try-with-resources implementation Summary: changed Xlint option name from -Xlint:arm to -Xlint:try Reviewed-by: jjg
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/*
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 * @test  /nodynamiccopyright/
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 * @bug 6911256 6964740 6965277 6967065
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 * @author Joseph D. Darcy
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 * @summary Check that -Xlint:twr warnings are generated as expected
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 * @compile/ref=TwrLint.out -Xlint:try,deprecation -XDrawDiagnostics TwrLint.java
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 */
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class TwrLint implements AutoCloseable {
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    private static void test1() {
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        try(TwrLint r1 = new TwrLint();
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            TwrLint r2 = new TwrLint();
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            TwrLint r3 = new TwrLint()) {
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            r1.close();   // The resource's close
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            r2.close(42); // *Not* the resource's close
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            // r3 not referenced
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        }
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    }
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    @SuppressWarnings("try")
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    private static void test2() {
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        try(@SuppressWarnings("deprecation") AutoCloseable r4 =
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            new DeprecatedAutoCloseable()) {
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            // r4 not referenced - but no warning is generated because of @SuppressWarnings
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        } catch(Exception e) {
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            ;
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        }
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    }
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    /**
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     * The AutoCloseable method of a resource.
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     */
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    @Override
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    public void close () {
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        return;
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    }
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    /**
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     * <em>Not</em> the AutoCloseable method of a resource.
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     */
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    public void close (int arg) {
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        return;
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    }
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}
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@Deprecated
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class DeprecatedAutoCloseable implements AutoCloseable {
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    public DeprecatedAutoCloseable(){super();}
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    @Override
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    public void close () {
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        return;
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    }
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}