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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test
* @summary tests for multi-module mode compilation
* @library /tools/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.jdeps/com.sun.tools.classfile
* jdk.jdeps/com.sun.tools.javap
* @build toolbox.ToolBox toolbox.JavacTask toolbox.ModuleBuilder ModuleTestBase
* @run main OpenModulesTest
*/
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import com.sun.tools.classfile.Attribute;
import com.sun.tools.classfile.Attributes;
import com.sun.tools.classfile.ClassFile;
import com.sun.tools.classfile.ClassWriter;
import com.sun.tools.classfile.Module_attribute;
import toolbox.JavacTask;
import toolbox.JavapTask;
import toolbox.Task;
import toolbox.Task.Expect;
import toolbox.Task.OutputKind;
public class OpenModulesTest extends ModuleTestBase {
public static void main(String... args) throws Exception {
new OpenModulesTest().runTests();
}
@Test
public void testStrongModule(Path base) throws Exception {
Path m1 = base.resolve("m1");
tb.writeJavaFiles(m1,
"module m1 { exports api1; opens api2; }",
"package api1; public class Api1 {}",
"package api2; public class Api2 {}",
"package impl; public class Impl {}");
Path classes = base.resolve("classes");
Path m1Classes = classes.resolve("m1");
tb.createDirectories(m1Classes);
String log = new JavacTask(tb)
.outdir(m1Classes)
.files(findJavaFiles(m1))
.run()
.writeAll()
.getOutput(Task.OutputKind.DIRECT);
if (!log.isEmpty())
throw new Exception("expected output not found: " + log);
String decompiled = new JavapTask(tb)
.options("--system", "none", "-bootclasspath", "")
.classes(m1Classes.resolve("module-info.class").toString())
.run()
.writeAll()
.getOutput(OutputKind.DIRECT)
.replace(System.getProperty("line.separator"), "\n");
String expected = "module m1 {\n" +
" requires java.base;\n" +
" exports api1;\n" +
" opens api2;\n" +
"}";
if (!decompiled.contains(expected)) {
throw new Exception("expected output not found: " + decompiled);
}
//compiling against a strong module read from binary:
Path m2 = base.resolve("m2");
tb.writeJavaFiles(m2,
"module m2 { requires m1; }",
"package test; public class Test { api1.Api1 a1; api2.Api2 a2; }");
Path m2Classes = classes.resolve("m2");
tb.createDirectories(m2Classes);
List<String> log2 = new JavacTask(tb)
.options("--module-path", m1Classes.toString(),
"-XDrawDiagnostics")
.outdir(m2Classes)
.files(findJavaFiles(m2))
.run(Expect.FAIL)
.writeAll()
.getOutputLines(Task.OutputKind.DIRECT);
List<String> expected2 = Arrays.asList("Test.java:1:53: compiler.err.doesnt.exist: api2",
"1 error");
if (!Objects.equals(log2, expected2))
throw new Exception("expected output not found: " + log2);
}
@Test
public void testOpenModule(Path base) throws Exception {
Path m1 = base.resolve("m1");
tb.writeJavaFiles(m1,
"open module m1 { exports api1; }",
"package api1; public class Api1 {}",
"package api2; public class Api2 {}",
"package impl; public class Impl {}");
Path classes = base.resolve("classes");
Path m1Classes = classes.resolve("m1");
tb.createDirectories(m1Classes);
String log = new JavacTask(tb)
.outdir(m1Classes)
.files(findJavaFiles(m1))
.run()
.writeAll()
.getOutput(Task.OutputKind.DIRECT);
if (!log.isEmpty())
throw new Exception("expected output not found: " + log);
String decompiled = new JavapTask(tb)
.options("--system", "none", "-bootclasspath", "")
.classes(m1Classes.resolve("module-info.class").toString())
.run()
.writeAll()
.getOutput(OutputKind.DIRECT)
.replace(System.getProperty("line.separator"), "\n");
String expected = "open module m1 {\n" +
" requires java.base;\n" +
" exports api1;\n" +
"}";
if (!decompiled.contains(expected)) {
throw new Exception("expected output not found: " + decompiled);
}
//compiling against a ordinary module read from binary:
Path m2 = base.resolve("m2");
tb.writeJavaFiles(m2,
"module m2 { requires m1; }",
"package test; public class Test { api1.Api1 a1; api2.Api2 a2; }");
Path m2Classes = classes.resolve("m2");
tb.createDirectories(m2Classes);
List<String> log2 = new JavacTask(tb)
.options("--module-path", m1Classes.toString(),
"-XDrawDiagnostics")
.outdir(m2Classes)
.files(findJavaFiles(m2))
.run(Expect.FAIL)
.writeAll()
.getOutputLines(Task.OutputKind.DIRECT);
List<String> expected2 = Arrays.asList("Test.java:1:53: compiler.err.doesnt.exist: api2",
"1 error");
if (!Objects.equals(log2, expected2))
throw new Exception("expected output not found: " + log2);
}
@Test
public void testOpenModuleNoOpens(Path base) throws Exception {
Path m1 = base.resolve("m1");
tb.writeJavaFiles(m1,
"open module m1 { exports api1; opens api2; }",
"package api1; public class Api1 {}",
"package api2; public class Api2 {}",
"package impl; public class Impl {}");
Path classes = base.resolve("classes");
Path m1Classes = classes.resolve("m1");
tb.createDirectories(m1Classes);
List<String> log = new JavacTask(tb)
.options("-XDrawDiagnostics")
.outdir(m1Classes)
.files(findJavaFiles(m1))
.run(Expect.FAIL)
.writeAll()
.getOutputLines(Task.OutputKind.DIRECT);
List<String> expected = Arrays.asList("module-info.java:1:32: compiler.err.no.opens.unless.strong",
"1 error");
if (!expected.equals(log))
throw new Exception("expected output not found: " + log);
}
@Test
public void testNonZeroOpensInOpen(Path base) throws Exception {
Path m1 = base.resolve("m1");
tb.writeJavaFiles(m1,
"module m1 { opens api; }",
"package api; public class Api {}");
Path classes = base.resolve("classes");
Path m1Classes = classes.resolve("m1");
tb.createDirectories(m1Classes);
new JavacTask(tb)
.options("-XDrawDiagnostics")
.outdir(m1Classes)
.files(findJavaFiles(m1))
.run(Expect.SUCCESS)
.writeAll();
Path miClass = m1Classes.resolve("module-info.class");
ClassFile cf = ClassFile.read(miClass);
Module_attribute module = (Module_attribute) cf.attributes.map.get(Attribute.Module);
Module_attribute newModule = new Module_attribute(module.attribute_name_index,
module.module_name,
module.module_flags | Module_attribute.ACC_OPEN,
module.requires,
module.exports,
module.opens,
module.uses_index,
module.provides);
Map<String, Attribute> attrs = new HashMap<>(cf.attributes.map);
attrs.put(Attribute.Module, newModule);
Attributes newAttributes = new Attributes(attrs);
ClassFile newClassFile = new ClassFile(cf.magic,
cf.minor_version,
cf.major_version,
cf.constant_pool,
cf.access_flags,
cf.this_class,
cf.super_class,
cf.interfaces,
cf.fields,
cf.methods,
newAttributes);
try (OutputStream out = Files.newOutputStream(miClass)) {
new ClassWriter().write(newClassFile, out);
}
Path test = base.resolve("test");
tb.writeJavaFiles(test,
"package impl; public class Impl extends api.Api {}");
Path testClasses = base.resolve("test-classes");
tb.createDirectories(testClasses);
List<String> log = new JavacTask(tb)
.options("-XDrawDiagnostics",
"--module-path", classes.toString(),
"--add-modules", "m1")
.outdir(testClasses)
.files(findJavaFiles(test))
.run(Expect.FAIL)
.writeAll()
.getOutputLines(Task.OutputKind.DIRECT);
List<String> expected = Arrays.asList("- compiler.err.cant.access: m1.module-info, (compiler.misc.bad.class.file.header: module-info.class, (compiler.misc.module.non.zero.opens: m1))",
"1 error");
if (!expected.equals(log))
throw new Exception("expected output not found: " + log);
}
}