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JDK 17 java.base.jmod - Base Module
JDK 17 java.base.jmod is the JMOD file for JDK 17 Base module.
JDK 17 Base module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\java.base.jmod.
JDK 17 Base module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.
JDK 17 Base module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\java.base.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ java/nio/file/TempFileHelper.java
/* * Copyright (c) 2009, 2021, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.nio.file; import java.util.Set; import java.util.EnumSet; import java.security.SecureRandom; import java.io.IOException; import java.nio.file.attribute.FileAttribute; import java.nio.file.attribute.PosixFilePermission; import java.nio.file.attribute.PosixFilePermissions; import static java.nio.file.attribute.PosixFilePermission.*; import jdk.internal.util.StaticProperty; /** * Helper class to support creation of temporary files and directories with * initial attributes. */ class TempFileHelper { private TempFileHelper() { } // temporary directory location private static final Path tmpdir = Path.of(StaticProperty.javaIoTmpDir()); private static final boolean isPosix = FileSystems.getDefault().supportedFileAttributeViews().contains("posix"); // file name generation, same as java.io.File for now private static final SecureRandom random = new SecureRandom(); private static Path generatePath(String prefix, String suffix, Path dir) { long n = random.nextLong(); String s = prefix + Long.toUnsignedString(n) + suffix; Path name = dir.getFileSystem().getPath(s); // the generated name should be a simple file name if (name.getParent() != null) throw new IllegalArgumentException("Invalid prefix or suffix"); return dir.resolve(name); } // default file and directory permissions (lazily initialized) private static class PosixPermissions { static final FileAttribute<Set<PosixFilePermission>> filePermissions = PosixFilePermissions.asFileAttribute(EnumSet.of(OWNER_READ, OWNER_WRITE)); static final FileAttribute<Set<PosixFilePermission>> dirPermissions = PosixFilePermissions.asFileAttribute(EnumSet .of(OWNER_READ, OWNER_WRITE, OWNER_EXECUTE)); } /** * Creates a file or directory in the given directory (or in the * temporary directory if dir is {@code null}). */ private static Path create(Path dir, String prefix, String suffix, boolean createDirectory, FileAttribute<?>[] attrs) throws IOException { if (prefix == null) prefix = ""; if (suffix == null) suffix = (createDirectory) ? "" : ".tmp"; if (dir == null) dir = tmpdir; // in POSIX environments use default file and directory permissions // if initial permissions not given by caller. if (isPosix && (dir.getFileSystem() == FileSystems.getDefault())) { if (attrs.length == 0) { // no attributes so use default permissions attrs = new FileAttribute<?>[1]; attrs[0] = (createDirectory) ? PosixPermissions.dirPermissions : PosixPermissions.filePermissions; } else { // check if posix permissions given; if not use default boolean hasPermissions = false; for (int i=0; i<attrs.length; i++) { if (attrs[i].name().equals("posix:permissions")) { hasPermissions = true; break; } } if (!hasPermissions) { FileAttribute<?>[] copy = new FileAttribute<?>[attrs.length+1]; System.arraycopy(attrs, 0, copy, 0, attrs.length); attrs = copy; attrs[attrs.length-1] = (createDirectory) ? PosixPermissions.dirPermissions : PosixPermissions.filePermissions; } } } // loop generating random names until file or directory can be created @SuppressWarnings("removal") SecurityManager sm = System.getSecurityManager(); for (;;) { Path f; try { f = generatePath(prefix, suffix, dir); } catch (InvalidPathException e) { // don't reveal temporary directory location if (sm != null) throw new IllegalArgumentException("Invalid prefix or suffix"); throw e; } try { if (createDirectory) { return Files.createDirectory(f, attrs); } else { return Files.createFile(f, attrs); } } catch (SecurityException e) { // don't reveal temporary directory location if (dir == tmpdir && sm != null) throw new SecurityException("Unable to create temporary file or directory"); throw e; } catch (FileAlreadyExistsException e) { // ignore } } } /** * Creates a temporary file in the given directory, or in the * temporary directory if dir is {@code null}. */ static Path createTempFile(Path dir, String prefix, String suffix, FileAttribute<?>[] attrs) throws IOException { return create(dir, prefix, suffix, false, attrs); } /** * Creates a temporary directory in the given directory, or in the * temporary directory if dir is {@code null}. */ static Path createTempDirectory(Path dir, String prefix, FileAttribute<?>[] attrs) throws IOException { return create(dir, prefix, null, true, attrs); } }
⏎ java/nio/file/TempFileHelper.java
Or download all of them as a single archive file:
File name: java.base-17.0.5-src.zip File size: 8883851 bytes Release date: 2022-09-13 Download
2023-09-26, 68825👍, 1💬
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