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/*
* Copyright (c) 2017, 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 8192920 8204588 8210275 8286571
* @summary Test source mode
* @modules jdk.compiler jdk.jlink
* @run main SourceMode
*/
import java.io.IOException;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.PosixFilePermission;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.spi.ToolProvider;
public class SourceMode extends TestHelper {
public static void main(String... args) throws Exception {
new SourceMode().run(args);
}
// To reduce the chance of creating shebang lines that are too long,
// use a shorter path for a java command if the standard path is too long.
private final Path shebangJavaCmd;
// Whether or not to automatically skip the shebang tests
private final boolean skipShebangTest;
private final PrintStream log;
private static final String thisVersion = System.getProperty("java.specification.version");
SourceMode() throws Exception {
log = System.err;
if (isWindows) {
// Skip shebang tests on Windows, because that requires Cygwin.
skipShebangTest = true;
shebangJavaCmd = null;
} else {
// Try to ensure the path to the Java launcher is reasonably short,
// to work around the mostly undocumented limit of 120 characters
// for a shebang line.
// The value of 120 is the typical kernel compile-time buffer limit.
// The following limit of 80 allows room for arguments to be placed
// after the path to the launcher on the shebang line.
Path cmd = Paths.get(javaCmd);
if (cmd.toString().length() < 80) {
shebangJavaCmd = cmd;
} else {
// Create a small image in the current directory, such that
// the path for the launcher is just "tmpJDK/bin/java".
Path tmpJDK = Paths.get("tmpJDK");
ToolProvider jlink = ToolProvider.findFirst("jlink")
.orElseThrow(() -> new Exception("cannot find jlink"));
jlink.run(System.out, System.err,
"--add-modules", "jdk.compiler,jdk.zipfs", "--output", tmpJDK.toString());
shebangJavaCmd = tmpJDK.resolve("bin").resolve("java");
}
log.println("Using java command: " + shebangJavaCmd);
skipShebangTest = false;
}
}
// java Simple.java 1 2 3
@Test
void testSimpleJava() throws IOException {
starting("testSimpleJava");
Path file = getSimpleFile("Simple.java", false);
TestResult tr = doExec(javaCmd, file.toString(), "1", "2", "3");
if (!tr.isOK())
error(tr, "Bad exit code: " + tr.exitValue);
if (!tr.contains("[1, 2, 3]"))
error(tr, "Expected output not found");
show(tr);
}
// java --source N --enable-preview Simple.java hello
// on minimal jdk image containing jdk.compiler
@Test
void test8286571() throws IOException {
starting("test8286571");
var pw = new PrintWriter(System.out);
int rc = ToolProvider.findFirst("jlink").orElseThrow().run(
pw, pw,
"--add-modules",
"jdk.compiler",
"--output",
"comp_only");
if (rc != 0)
throw new AssertionError("Jlink failed: rc = " + rc);
Path file = getSimpleFile("Simple.java", false);
TestResult tr = doExec(
Path.of("comp_only", "bin", isWindows ? "java.exe" : "java").toString(),
"--source", thisVersion,
"--enable-preview",
file.toString(), "hello");
if (!tr.isOK())
error(tr, "Bad exit code: " + tr.exitValue);
if (!tr.contains("[hello]"))
error(tr, "Expected output not found");
show(tr);
}
// java --source N simple 1 2 3
@Test
void testSimple() throws IOException {
starting("testSimple");
Path file = getSimpleFile("simple", false);
TestResult tr = doExec(javaCmd, "--source", thisVersion, file.toString(), "1", "2", "3");
if (!tr.isOK())
error(tr, "Bad exit code: " + tr.exitValue);
if (!tr.contains("[1, 2, 3]"))
error(tr, "Expected output not found");
show(tr);
}
// execSimple 1 2 3
@Test
void testExecSimple() throws IOException {
starting("testExecSimple");
if (skipShebangTest) {
log.println("SKIPPED");
return;
}
Path file = setExecutable(getSimpleFile("execSimple", true));
TestResult tr = doExec(file.toAbsolutePath().toString(), "1", "2", "3");
if (!tr.isOK())
error(tr, "Bad exit code: " + tr.exitValue);
if (!tr.contains("[1, 2, 3]"))
error(tr, "Expected output not found");
show(tr);
}
// java @simpleJava.at (contains Simple.java 1 2 3)
@Test
void testSimpleJavaAtFile() throws IOException {
starting("testSimpleJavaAtFile");
Path file = getSimpleFile("Simple.java", false);
Path atFile = Paths.get("simpleJava.at");
createFile(atFile, List.of(file + " 1 2 3"));
TestResult tr = doExec(javaCmd, "@" + atFile);
if (!tr.isOK())
error(tr, "Bad exit code: " + tr.exitValue);
if (!tr.contains("[1, 2, 3]"))
error(tr, "Expected output not found");
show(tr);
}
// java @simple.at (contains --source N simple 1 2 3)
@Test
void testSimpleAtFile() throws IOException {
starting("testSimpleAtFile");
Path file = getSimpleFile("simple", false);
Path atFile = Paths.get("simple.at");
createFile(atFile, List.of("--source " + thisVersion + " " + file + " 1 2 3"));
TestResult tr = doExec(javaCmd, "@" + atFile);
if (!tr.isOK())
error(tr, "Bad exit code: " + tr.exitValue);
if (!tr.contains("[1, 2, 3]"))
error(tr, "Expected output not found");
show(tr);
}
// java -cp classes Main.java 1 2 3
@Test
void testClasspath() throws IOException {
starting("testClasspath");
Path base = Files.createDirectories(Paths.get("testClasspath"));
Path otherJava = base.resolve("Other.java");
createFile(otherJava, List.of(
"public class Other {",
" public static String join(String[] args) {",
" return String.join(\"-\", args);",
" }",
"}"
));
Path classes = Files.createDirectories(base.resolve("classes"));
Path mainJava = base.resolve("Main.java");
createFile(mainJava, List.of(
"class Main {",
" public static void main(String[] args) {",
" System.out.println(Other.join(args));",
" }}"
));
compile("-d", classes.toString(), otherJava.toString());
TestResult tr = doExec(javaCmd, "-cp", classes.toString(),
mainJava.toString(), "1", "2", "3");
if (!tr.isOK())
error(tr, "Bad exit code: " + tr.exitValue);
if (!tr.contains("1-2-3"))
error(tr, "Expected output not found");
show(tr);
}
// java --add-exports=... Export.java --help
@Test
void testAddExports() throws IOException {
if (!isEnglishLocale()) {
return;
}
starting("testAddExports");
Path exportJava = Paths.get("Export.java");
createFile(exportJava, List.of(
"public class Export {",
" public static void main(String[] args) {",
" new com.sun.tools.javac.main.Main(\"demo\").compile(args);",
" }",
"}"
));
// verify access fails without --add-exports
TestResult tr1 = doExec(javaCmd, exportJava.toString(), "--help");
if (tr1.isOK())
error(tr1, "Compilation succeeded unexpectedly");
show(tr1);
// verify access succeeds with --add-exports
TestResult tr2 = doExec(javaCmd,
"--add-exports", "jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED",
exportJava.toString(), "--help");
if (!tr2.isOK())
error(tr2, "Bad exit code: " + tr2.exitValue);
if (!(tr2.contains("demo") && tr2.contains("Usage")))
error(tr2, "Expected output not found");
show(tr2);
}
// java -cp ... HelloWorld.java (for a class "java" in package "HelloWorld")
@Test
void testClassNamedJava() throws IOException {
starting("testClassNamedJava");
Path base = Files.createDirectories(Paths.get("testClassNamedJava"));
Path src = Files.createDirectories(base.resolve("src"));
Path srcfile = src.resolve("java.java");
createFile(srcfile, List.of(
"package HelloWorld;",
"class java {",
" public static void main(String... args) {",
" System.out.println(HelloWorld.java.class.getName());",
" }",
"}"
));
Path classes = base.resolve("classes");
compile("-d", classes.toString(), srcfile.toString());
TestResult tr =
doExec(javaCmd, "-cp", classes.toString(), "HelloWorld.java");
if (!tr.isOK())
error(tr, "Command failed");
if (!tr.contains("HelloWorld.java"))
error(tr, "Expected output not found");
show(tr);
}
// java --source N -cp ... HelloWorld
@Test
void testSourceClasspath() throws IOException {
if (!isEnglishLocale()) {
return;
}
starting("testSourceClasspath");
Path base = Files.createDirectories(Paths.get("testSourceClasspath"));
Path src = Files.createDirectories(base.resolve("src"));
Path srcfile = src.resolve("java.java");
createFile(srcfile, List.of(
"class HelloWorld {",
" public static void main(String... args) {",
" System.out.println(\"Hello World\");",
" }",
"}"
));
Path classes = base.resolve("classes");
compile("-d", classes.toString(), srcfile.toString());
TestResult tr =
doExec(javaCmd, "--source", thisVersion, "-cp", classes.toString(), "HelloWorld");
if (tr.isOK())
error(tr, "Command succeeded unexpectedly");
if (!tr.contains("file not found: HelloWorld"))
error(tr, "Expected output not found");
show(tr);
}
// java --source
@Test
void testSourceNoArg() throws IOException {
starting("testSourceNoArg");
TestResult tr = doExec(javaCmd, "--source");
if (tr.isOK())
error(tr, "Command succeeded unexpectedly");
if (!tr.contains("--source requires source version"))
error(tr, "Expected output not found");
show(tr);
}
// java --source N -jar simple.jar
@Test
void testSourceJarConflict() throws IOException {
starting("testSourceJarConflict");
Path base = Files.createDirectories(Paths.get("testSourceJarConflict"));
Path file = getSimpleFile("Simple.java", false);
Path classes = Files.createDirectories(base.resolve("classes"));
compile("-d", classes.toString(), file.toString());
Path simpleJar = base.resolve("simple.jar");
createJar("cf", simpleJar.toString(), "-C", classes.toString(), ".");
TestResult tr =
doExec(javaCmd, "--source", thisVersion, "-jar", simpleJar.toString());
if (tr.isOK())
error(tr, "Command succeeded unexpectedly");
if (!tr.contains("Option -jar is not allowed with --source"))
error(tr, "Expected output not found");
show(tr);
}
// java --source N -m jdk.compiler
@Test
void testSourceModuleConflict() throws IOException {
starting("testSourceModuleConflict");
TestResult tr = doExec(javaCmd, "--source", thisVersion, "-m", "jdk.compiler");
if (tr.isOK())
error(tr, "Command succeeded unexpectedly");
if (!tr.contains("Option -m is not allowed with --source"))
error(tr, "Expected output not found");
show(tr);
}
// #!.../java --source N -version
@Test
void testTerminalOptionInShebang() throws IOException {
starting("testTerminalOptionInShebang");
if (skipShebangTest || isAIX || isMacOSX) {
// On MacOSX, we cannot distinguish between terminal options on the
// shebang line and those on the command line.
// On Solaris, all options after the first on the shebang line are
// ignored. Similar on AIX.
log.println("SKIPPED");
return;
}
Path base = Files.createDirectories(
Paths.get("testTerminalOptionInShebang"));
Path bad = base.resolve("bad");
createFile(bad, List.of(
"#!" + shebangJavaCmd + " --source " + thisVersion + " -version"));
setExecutable(bad);
TestResult tr = doExec(bad.toString());
if (!tr.contains("Option -version is not allowed in this context"))
error(tr, "Expected output not found");
show(tr);
}
// #!.../java --source N @bad.at (contains -version)
@Test
void testTerminalOptionInShebangAtFile() throws IOException {
starting("testTerminalOptionInShebangAtFile");
if (skipShebangTest || isAIX || isMacOSX) {
// On MacOSX, we cannot distinguish between terminal options in a
// shebang @-file and those on the command line.
// On Solaris, all options after the first on the shebang line are
// ignored. Similar on AIX.
log.println("SKIPPED");
return;
}
// Use a short directory name, to avoid line length limitations
Path base = Files.createDirectories(Paths.get("testBadAtFile"));
Path bad_at = base.resolve("bad.at");
createFile(bad_at, List.of("-version"));
Path bad = base.resolve("bad");
createFile(bad, List.of(
"#!" + shebangJavaCmd + " --source " + thisVersion + " @" + bad_at));
setExecutable(bad);
TestResult tr = doExec(bad.toString());
if (!tr.contains("Option -version in @testBadAtFile/bad.at is "
+ "not allowed in this context"))
error(tr, "Expected output not found");
show(tr);
}
// #!.../java --source N HelloWorld
@Test
void testMainClassInShebang() throws IOException {
starting("testMainClassInShebang");
if (skipShebangTest || isAIX || isMacOSX) {
// On MacOSX, we cannot distinguish between a main class on the
// shebang line and one on the command line.
// On Solaris, all options after the first on the shebang line are
// ignored. Similar on AIX.
log.println("SKIPPED");
return;
}
Path base = Files.createDirectories(Paths.get("testMainClassInShebang"));
Path bad = base.resolve("bad");
createFile(bad, List.of(
"#!" + shebangJavaCmd + " --source " + thisVersion + " HelloWorld"));
setExecutable(bad);
TestResult tr = doExec(bad.toString());
if (!tr.contains("Cannot specify main class in this context"))
error(tr, "Expected output not found");
show(tr);
}
//--------------------------------------------------------------------------
private void starting(String label) {
System.out.println();
System.out.println("*** Starting: " + label + " (stdout)");
System.err.println();
System.err.println("*** Starting: " + label + " (stderr)");
}
private void show(TestResult tr) {
log.println("*** Test Output:");
for (String line: tr.testOutput) {
log.println(line);
}
log.println("*** End Of Test Output:");
}
private Map<String,String> getLauncherDebugEnv() {
return Map.of("_JAVA_LAUNCHER_DEBUG", "1");
}
private Path getSimpleFile(String name, boolean shebang) throws IOException {
Path file = Paths.get(name);
if (!Files.exists(file)) {
createFile(file, List.of(
(shebang ? "#!" + shebangJavaCmd + " --source=" + thisVersion: ""),
"public class Simple {",
" public static void main(String[] args) {",
" System.out.println(java.util.Arrays.toString(args));",
" }}"));
}
return file;
}
private void createFile(Path file, List<String> lines) throws IOException {
lines.stream()
.filter(line -> line.length() > 128)
.forEach(line -> {
log.println("*** Warning: long line ("
+ line.length()
+ " chars) in file " + file);
log.println("*** " + line);
});
log.println("*** File: " + file);
lines.stream().forEach(log::println);
log.println("*** End Of File");
createFile(file.toFile(), lines);
}
private Path setExecutable(Path file) throws IOException {
Set<PosixFilePermission> perms = Files.getPosixFilePermissions(file);
perms.add(PosixFilePermission.OWNER_EXECUTE);
Files.setPosixFilePermissions(file, perms);
return file;
}
private void error(TestResult tr, String message) {
show(tr);
throw new RuntimeException(message);
}
}
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