| /* |
| * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8250768 |
| * @library /tools/lib |
| * @modules |
| * jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.main |
| * jdk.jdeps/com.sun.tools.classfile |
| * @build toolbox.ToolBox toolbox.JavacTask |
| * @run main PreviewAutoSuppress |
| */ |
| import com.sun.tools.classfile.ClassFile; |
| import java.io.InputStream; |
| import java.nio.file.Files; |
| import toolbox.JavacTask; |
| import toolbox.Task; |
| import toolbox.TestRunner; |
| import toolbox.ToolBox; |
| |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.List; |
| |
| public class PreviewAutoSuppress extends TestRunner { |
| |
| protected ToolBox tb; |
| |
| PreviewAutoSuppress() { |
| super(System.err); |
| tb = new ToolBox(); |
| } |
| |
| public static void main(String... args) throws Exception { |
| PreviewAutoSuppress t = new PreviewAutoSuppress(); |
| t.runTests(); |
| } |
| |
| protected void runTests() throws Exception { |
| runTests(m -> new Object[] { Paths.get(m.getName()) }); |
| } |
| |
| @Test |
| public void declarationWarning(Path base) throws Exception { |
| Path src = base.resolve("src"); |
| tb.writeJavaFiles(src, |
| """ |
| package test; |
| public class Outer { |
| record R(int i) {} |
| R r; |
| } |
| """, |
| """ |
| package test; |
| public class Use { |
| Outer.R r; |
| } |
| """); |
| Path classes = base.resolve("classes"); |
| |
| List<String> log = new JavacTask(tb, Task.Mode.CMDLINE) |
| .outdir(classes) |
| .options("--enable-preview", |
| "-source", String.valueOf(Runtime.version().feature()), |
| "-Xlint:preview", |
| "-XDforcePreview", |
| "-XDrawDiagnostics") |
| .files(tb.findJavaFiles(src)) |
| .run() |
| .writeAll() |
| .getOutputLines(Task.OutputKind.DIRECT); |
| |
| List<String> expected = |
| List.of("Outer.java:3:5: compiler.warn.preview.feature.use.plural: (compiler.misc.feature.records)", |
| "Outer.java:3:5: compiler.warn.preview.feature.use.plural: (compiler.misc.feature.records)", |
| "2 warnings"); |
| if (!log.equals(expected)) |
| throw new Exception("expected output not found" + log); |
| checkPreviewClassfile(classes.resolve("test").resolve("Outer.class"), true); //TODO: correct? |
| checkPreviewClassfile(classes.resolve("test").resolve("Outer$R.class"),true); |
| checkPreviewClassfile(classes.resolve("test").resolve("Use.class"),false); |
| } |
| |
| @Test |
| public void previewAPI(Path base) throws Exception { |
| Path apiSrc = base.resolve("api-src"); |
| tb.writeJavaFiles(apiSrc, |
| """ |
| package preview.api; |
| @jdk.internal.javac.PreviewFeature(feature=jdk.internal.javac.PreviewFeature.Feature.TEST) |
| public class Outer { |
| public void test() {} |
| } |
| """, |
| """ |
| package preview.impl; |
| import preview.api.Outer; |
| public class Impl { |
| public void run() { |
| new Outer().test(); |
| } |
| public static class C extends Outer {} |
| } |
| """); |
| Path apiClasses = base.resolve("api-classes"); |
| |
| new JavacTask(tb, Task.Mode.CMDLINE) |
| .outdir(apiClasses) |
| .options("-XDforcePreview", |
| "-XDrawDiagnostics", |
| "--patch-module", "java.base=" + apiSrc.toString(), |
| "-Werror") |
| .files(tb.findJavaFiles(apiSrc)) |
| .run() |
| .writeAll() |
| .getOutputLines(Task.OutputKind.DIRECT); |
| |
| checkPreviewClassfile(apiClasses.resolve("preview").resolve("api").resolve("Outer.class"), |
| false); |
| checkPreviewClassfile(apiClasses.resolve("preview").resolve("impl").resolve("Impl.class"), |
| false); |
| checkPreviewClassfile(apiClasses.resolve("preview").resolve("impl").resolve("Impl$C.class"), |
| false); |
| |
| Path testSrc = base.resolve("test-src"); |
| tb.writeJavaFiles(testSrc, |
| """ |
| package test; |
| import preview.api.Outer; |
| public class Use { |
| public void run() { |
| new Outer().test(); |
| } |
| public static class C extends Outer {} |
| } |
| """); |
| Path testClasses = base.resolve("test-classes"); |
| List<String> log = new JavacTask(tb, Task.Mode.CMDLINE) |
| .outdir(testClasses) |
| .options("--patch-module", "java.base=" + apiClasses.toString(), |
| "--add-exports", "java.base/preview.api=ALL-UNNAMED", |
| "-XDrawDiagnostics") |
| .files(tb.findJavaFiles(testSrc)) |
| .run(Task.Expect.FAIL) |
| .writeAll() |
| .getOutputLines(Task.OutputKind.DIRECT); |
| |
| List<String> expected = |
| List.of("Use.java:2:19: compiler.err.is.preview: preview.api.Outer", |
| "Use.java:7:35: compiler.err.is.preview: preview.api.Outer", |
| "Use.java:5:13: compiler.err.is.preview: preview.api.Outer", |
| "3 errors"); |
| |
| if (!log.equals(expected)) |
| throw new Exception("expected output not found" + log); |
| |
| log = new JavacTask(tb, Task.Mode.CMDLINE) |
| .outdir(testClasses) |
| .options("--patch-module", "java.base=" + apiClasses.toString(), |
| "--add-exports", "java.base/preview.api=ALL-UNNAMED", |
| "--enable-preview", |
| "-Xlint:preview", |
| "-source", String.valueOf(Runtime.version().feature()), |
| "-XDrawDiagnostics") |
| .files(tb.findJavaFiles(testSrc)) |
| .run() |
| .writeAll() |
| .getOutputLines(Task.OutputKind.DIRECT); |
| |
| expected = |
| List.of("Use.java:5:13: compiler.warn.is.preview: preview.api.Outer", |
| "Use.java:7:35: compiler.warn.is.preview: preview.api.Outer", |
| "2 warnings"); |
| |
| if (!log.equals(expected)) |
| throw new Exception("expected output not found" + log); |
| |
| checkPreviewClassfile(testClasses.resolve("test").resolve("Use.class"), |
| true); |
| checkPreviewClassfile(testClasses.resolve("test").resolve("Use$C.class"), |
| true); |
| } |
| |
| private void checkPreviewClassfile(Path p, boolean preview) throws Exception { |
| try (InputStream in = Files.newInputStream(p)) { |
| ClassFile cf = ClassFile.read(in); |
| if (preview && cf.minor_version != 65535) { |
| throw new IllegalStateException("Expected preview class, but got: " + cf.minor_version); |
| } else if (!preview && cf.minor_version != 0) { |
| throw new IllegalStateException("Expected minor version == 0 but got: " + cf.minor_version); |
| } |
| } |
| } |
| } |
