/*
* Copyright (c) 2009, 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.
*
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*/
/*
* @test
* @bug 6879371
* @summary javap does not close internal default file manager
*/
import java.io.*;
import java.util.zip.*;
public class T6879371 {
public static void main(String[] args) throws Exception {
new T6879371().run();
}
public void run() throws Exception {
// create a simple test class which we can put into
// a test zip file and know that it will be used by
// javap.
File classDir = new File("classes");
classDir.mkdir();
String className = "Test";
File javaFile = writeTestFile(className);
compileTestFile(classDir, javaFile);
test(classDir, className, false);
test(classDir, className, true);
}
void test(File classDir, String className, boolean useJavaUtilZip) throws Exception {
// javac should really not be using system properties like this
// -- it should really be using (hidden) options -- but until then
// take care to leave system properties as we find them, so as not
// to adversely affect other tests that might follow.
String prev = System.getProperty("useJavaUtilZip");
setProperty("useJavaUtilZip", (useJavaUtilZip ? "true" : null));
try {
File zipFile = zip(classDir, new File(classDir + ".zip"));
javap("-classpath", zipFile.getPath(), className);
if (!zipFile.delete())
throw new Exception("failed to delete " + zipFile);
} finally {
setProperty("useJavaUtilZip", prev);
}
}
File writeTestFile(String name) throws IOException {
File f = new File(name + ".java");
PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
out.println("class " + name + " { }");
out.close();
return f;
}
void compileTestFile(File classDir, File file) {
int rc = com.sun.tools.javac.Main.compile(
new String[] { "-d", classDir.getPath(), file.getPath() });
if (rc != 0)
throw new Error("compilation failed. rc=" + rc);
}
File zip(File dir, File zipFile) throws IOException {
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
for (File file: dir.listFiles()) {
if (file.isFile()) {
byte[] data = new byte[(int) file.length()];
DataInputStream in = new DataInputStream(new FileInputStream(file));
in.readFully(data);
in.close();
zipOut.putNextEntry(new ZipEntry(file.getName()));
zipOut.write(data, 0, data.length);
zipOut.closeEntry();
}
}
zipOut.close();
return zipFile;
}
String javap(String... args) {
StringWriter sw = new StringWriter();
PrintWriter out = new PrintWriter(sw);
int rc = com.sun.tools.javap.Main.run(args, out);
if (rc != 0)
throw new Error("javap failed. rc=" + rc);
out.close();
return sw.toString();
}
void setProperty(String key, String value) {
if (value != null)
System.setProperty(key, value);
else
System.getProperties().remove(key);
}
}