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89 lines
3.1 KiB
Java
89 lines
3.1 KiB
Java
/*
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* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8348212 8349475
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* @summary Ensure the warn() phase executes when the compiler is invoked via the API
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* @modules jdk.compiler/com.sun.tools.javac.api
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*/
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import com.sun.tools.javac.api.JavacTaskImpl;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.util.List;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.ToolProvider;
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public class TestJavacTaskWithWarning {
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static final JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
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static final StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null);
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public static void warningTest() throws Exception {
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// Create a source file that will generate a warning
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String srcdir = ".";
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File file = new File(srcdir, "GeneratesWarning.java");
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try (PrintStream out = new PrintStream(new FileOutputStream(file))) {
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out.print(
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"""
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public class GeneratesWarning {
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public GeneratesWarning() {
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hashCode(); // generates a "this-escape" warning
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}
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}
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""");
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}
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// Compile it using API
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Iterable<? extends JavaFileObject> files = fm.getJavaFileObjectsFromFiles(List.of(file));
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StringWriter buf = new StringWriter();
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List<String> options = List.of(
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"-Xlint:this-escape",
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"-XDrawDiagnostics"
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);
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JavacTaskImpl task = (JavacTaskImpl)compiler.getTask(new PrintWriter(buf), fm, null, options, null, files);
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task.analyze();
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// Verify warning was generated
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if (!buf.toString().contains("compiler.warn.possible.this.escape"))
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throw new AssertionError("warning not found in:\n" + buf);
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}
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public static void main(String[] args) throws Exception {
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try {
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warningTest();
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} finally {
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fm.close();
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}
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}
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}
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