--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/jdk/internal/util/SystemProps.java Wed Nov 28 15:53:49 2018 -0500
@@ -0,0 +1,302 @@
+/*
+ * Copyright (c) 2018, 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+package jdk.internal.util;
+
+
+import java.lang.annotation.Native;
+import java.util.Properties;
+
+/**
+ * System Property initialization for internal use only
+ * Retrieves the platform, JVM, and command line properties,
+ * applies initial defaults and returns the Properties instance
+ * that becomes the System.getProperties instance.
+ */
+public final class SystemProps {
+
+ // no instances
+ private SystemProps() {}
+
+ /**
+ * Create and initialize the system properties from the native properties
+ * and command line properties.
+ * Note: Build-defined properties such as versions and vendor information
+ * are initialized by VersionProps.java-template.
+ *
+ * @return a Properties instance initialized with all of the properties
+ */
+ public static Properties initProperties() {
+ // Initially, cmdProperties only includes -D and props from the VM
+ Raw raw = new Raw();
+ Properties props = raw.cmdProperties();
+
+ String javaHome = props.getProperty("java.home");
+ assert javaHome != null : "java.home not set";
+
+ putIfAbsent(props, "user.home", raw.propDefault(Raw._user_home_NDX));
+ putIfAbsent(props, "user.dir", raw.propDefault(Raw._user_dir_NDX));
+ putIfAbsent(props, "user.name", raw.propDefault(Raw._user_name_NDX));
+
+ // Platform defined encoding cannot be overridden on the command line
+ put(props, "sun.jnu.encoding", raw.propDefault(Raw._sun_jnu_encoding_NDX));
+
+ // Add properties that have not been overridden on the cmdline
+ putIfAbsent(props, "file.encoding",
+ ((raw.propDefault(Raw._file_encoding_NDX) == null)
+ ? raw.propDefault(Raw._sun_jnu_encoding_NDX)
+ : raw.propDefault(Raw._file_encoding_NDX)));
+
+ // Use platform values if not overridden by a commandline -Dkey=value
+ // In no particular order
+ putIfAbsent(props, "os.name", raw.propDefault(Raw._os_name_NDX));
+ putIfAbsent(props, "os.arch", raw.propDefault(Raw._os_arch_NDX));
+ putIfAbsent(props, "os.version", raw.propDefault(Raw._os_version_NDX));
+ putIfAbsent(props, "line.separator", raw.propDefault(Raw._line_separator_NDX));
+ putIfAbsent(props, "file.separator", raw.propDefault(Raw._file_separator_NDX));
+ putIfAbsent(props, "path.separator", raw.propDefault(Raw._path_separator_NDX));
+ putIfAbsent(props, "java.io.tmpdir", raw.propDefault(Raw._java_io_tmpdir_NDX));
+ putIfAbsent(props, "http.proxyHost", raw.propDefault(Raw._http_proxyHost_NDX));
+ putIfAbsent(props, "http.proxyPort", raw.propDefault(Raw._http_proxyPort_NDX));
+ putIfAbsent(props, "https.proxyHost", raw.propDefault(Raw._https_proxyHost_NDX));
+ putIfAbsent(props, "https.proxyPort", raw.propDefault(Raw._https_proxyPort_NDX));
+ putIfAbsent(props, "ftp.proxyHost", raw.propDefault(Raw._ftp_proxyHost_NDX));
+ putIfAbsent(props, "ftp.proxyPort", raw.propDefault(Raw._ftp_proxyPort_NDX));
+ putIfAbsent(props, "socksProxyHost", raw.propDefault(Raw._socksProxyHost_NDX));
+ putIfAbsent(props, "socksProxyPort", raw.propDefault(Raw._socksProxyPort_NDX));
+ putIfAbsent(props, "gopherProxySet", raw.propDefault(Raw._gopherProxySet_NDX));
+ putIfAbsent(props, "gopherProxyHost", raw.propDefault(Raw._gopherProxyHost_NDX));
+ putIfAbsent(props, "gopherProxyPort", raw.propDefault(Raw._gopherProxyPort_NDX));
+ putIfAbsent(props, "http.nonProxyHosts", raw.propDefault(Raw._http_nonProxyHosts_NDX));
+ putIfAbsent(props, "ftp.nonProxyHosts", raw.propDefault(Raw._ftp_nonProxyHosts_NDX));
+ putIfAbsent(props, "socksNonProxyHosts", raw.propDefault(Raw._socksNonProxyHosts_NDX));
+ putIfAbsent(props, "awt.toolkit", raw.propDefault(Raw._awt_toolkit_NDX));
+ putIfAbsent(props, "java.awt.headless", raw.propDefault(Raw._java_awt_headless_NDX));
+ putIfAbsent(props, "java.awt.printerjob", raw.propDefault(Raw._java_awt_printerjob_NDX));
+ putIfAbsent(props, "java.awt.graphicsenv", raw.propDefault(Raw._java_awt_graphicsenv_NDX));
+ putIfAbsent(props, "sun.desktop", raw.propDefault(Raw._sun_desktop_NDX));
+ putIfAbsent(props, "sun.java2d.fontpath", raw.propDefault(Raw._sun_java2d_fontpath_NDX));
+ putIfAbsent(props, "sun.arch.abi", raw.propDefault(Raw._sun_arch_abi_NDX));
+ putIfAbsent(props, "sun.arch.data.model", raw.propDefault(Raw._sun_arch_data_model_NDX));
+ putIfAbsent(props, "sun.os.patch.level", raw.propDefault(Raw._sun_os_patch_level_NDX));
+ putIfAbsent(props, "sun.stdout.encoding", raw.propDefault(Raw._sun_stdout_encoding_NDX));
+ putIfAbsent(props, "sun.stderr.encoding", raw.propDefault(Raw._sun_stderr_encoding_NDX));
+ putIfAbsent(props, "sun.io.unicode.encoding", raw.propDefault(Raw._sun_io_unicode_encoding_NDX));
+ putIfAbsent(props, "sun.cpu.isalist", raw.propDefault(Raw._sun_cpu_isalist_NDX));
+ putIfAbsent(props, "sun.cpu.endian", raw.propDefault(Raw._sun_cpu_endian_NDX));
+
+ /* Construct i18n related options */
+ fillI18nProps(props,"user.language", raw.propDefault(Raw._display_language_NDX),
+ raw.propDefault(Raw._format_language_NDX));
+ fillI18nProps(props,"user.script", raw.propDefault(Raw._display_script_NDX),
+ raw.propDefault(Raw._format_script_NDX));
+ fillI18nProps(props,"user.country", raw.propDefault(Raw._display_country_NDX),
+ raw.propDefault(Raw._format_country_NDX));
+ fillI18nProps(props,"user.variant", raw.propDefault(Raw._display_variant_NDX),
+ raw.propDefault(Raw._format_variant_NDX));
+
+ return props;
+ }
+
+ /**
+ * Puts the property if it is non-null
+ * @param props the Properties
+ * @param key the key
+ * @param value the value
+ */
+ private static void put(Properties props, String key, String value) {
+ if (value != null) {
+ props.put(key, value);
+ }
+ }
+
+ /**
+ * Puts the property if it is non-null and is not already in the Properties.
+ * @param props the Properties
+ * @param key the key
+ * @param value the value
+ */
+ private static void putIfAbsent(Properties props, String key, String value) {
+ if (value != null) {
+ props.putIfAbsent(key, value);
+ }
+ }
+
+ /**
+ * For internationalization options, compute the values for
+ * display and format properties
+ * MUST NOT override command line defined values.
+ *
+ * @param base the base property name
+ * @param display the display value for the base
+ * @param format the format value for the base
+ */
+ private static void fillI18nProps(Properties cmdProps, String base, String display,
+ String format) {
+ // Do not override command line setting
+ String baseValue = cmdProps.getProperty(base);
+ if (baseValue == null) {
+ // Not overridden on the command line; define the properties if there are platform defined values
+ baseValue = display;
+ }
+ if (baseValue != null) {
+ cmdProps.put(base, baseValue);
+ }
+
+ /* user.xxx.display property */
+ String disp = base + ".display";
+ String dispValue = cmdProps.getProperty(disp);
+ if (dispValue == null && display != null && !display.equals(baseValue)) {
+ // Create the property only if different from the base property
+ cmdProps.put(disp, display);
+ }
+
+ /* user.xxx.format property */
+ String fmt = base + ".format";
+ String fmtValue = cmdProps.getProperty(fmt);
+ if (fmtValue == null && format != null && !format.equals(baseValue)) {
+ // Create the property only if different than the base property
+ cmdProps.put(fmt, format);
+ }
+ }
+
+ /**
+ * Read the raw properties from native System.c.
+ */
+ public static class Raw {
+ // Array indices written by native vmProperties()
+ // The order is arbitrary (but alphabetic for convenience)
+ @Native private static final int _awt_toolkit_NDX = 0;
+ @Native private static final int _display_country_NDX = 1 + _awt_toolkit_NDX;
+ @Native private static final int _display_language_NDX = 1 + _display_country_NDX;
+ @Native private static final int _display_script_NDX = 1 + _display_language_NDX;
+ @Native private static final int _display_variant_NDX = 1 + _display_script_NDX;
+ @Native private static final int _file_encoding_NDX = 1 + _display_variant_NDX;
+ @Native private static final int _file_separator_NDX = 1 + _file_encoding_NDX;
+ @Native private static final int _format_country_NDX = 1 + _file_separator_NDX;
+ @Native private static final int _format_language_NDX = 1 + _format_country_NDX;
+ @Native private static final int _format_script_NDX = 1 + _format_language_NDX;
+ @Native private static final int _format_variant_NDX = 1 + _format_script_NDX;
+ @Native private static final int _ftp_nonProxyHosts_NDX = 1 + _format_variant_NDX;
+ @Native private static final int _ftp_proxyHost_NDX = 1 + _ftp_nonProxyHosts_NDX;
+ @Native private static final int _ftp_proxyPort_NDX = 1 + _ftp_proxyHost_NDX;
+ @Native private static final int _gopherProxyHost_NDX = 1 + _ftp_proxyPort_NDX;
+ @Native private static final int _gopherProxyPort_NDX = 1 + _gopherProxyHost_NDX;
+ @Native private static final int _gopherProxySet_NDX = 1 + _gopherProxyPort_NDX;
+ @Native private static final int _http_nonProxyHosts_NDX = 1 + _gopherProxySet_NDX;
+ @Native private static final int _http_proxyHost_NDX = 1 + _http_nonProxyHosts_NDX;
+ @Native private static final int _http_proxyPort_NDX = 1 + _http_proxyHost_NDX;
+ @Native private static final int _https_proxyHost_NDX = 1 + _http_proxyPort_NDX;
+ @Native private static final int _https_proxyPort_NDX = 1 + _https_proxyHost_NDX;
+ @Native private static final int _java_awt_graphicsenv_NDX = 1 + _https_proxyPort_NDX;
+ @Native private static final int _java_awt_printerjob_NDX = 1 + _java_awt_graphicsenv_NDX;
+ @Native private static final int _java_awt_headless_NDX = 1 + _java_awt_printerjob_NDX;
+ @Native private static final int _java_io_tmpdir_NDX = 1 + _java_awt_headless_NDX;
+ @Native private static final int _line_separator_NDX = 1 + _java_io_tmpdir_NDX;
+ @Native private static final int _os_arch_NDX = 1 + _line_separator_NDX;
+ @Native private static final int _os_name_NDX = 1 + _os_arch_NDX;
+ @Native private static final int _os_version_NDX = 1 + _os_name_NDX;
+ @Native private static final int _path_separator_NDX = 1 + _os_version_NDX;
+ @Native private static final int _socksNonProxyHosts_NDX = 1 + _path_separator_NDX;
+ @Native private static final int _socksProxyHost_NDX = 1 + _socksNonProxyHosts_NDX;
+ @Native private static final int _socksProxyPort_NDX = 1 + _socksProxyHost_NDX;
+ @Native private static final int _sun_arch_abi_NDX = 1 + _socksProxyPort_NDX;
+ @Native private static final int _sun_arch_data_model_NDX = 1 + _sun_arch_abi_NDX;
+ @Native private static final int _sun_cpu_endian_NDX = 1 + _sun_arch_data_model_NDX;
+ @Native private static final int _sun_cpu_isalist_NDX = 1 + _sun_cpu_endian_NDX;
+ @Native private static final int _sun_desktop_NDX = 1 + _sun_cpu_isalist_NDX;
+ @Native private static final int _sun_io_unicode_encoding_NDX = 1 + _sun_desktop_NDX;
+ @Native private static final int _sun_java2d_fontpath_NDX = 1 + _sun_io_unicode_encoding_NDX;
+ @Native private static final int _sun_jnu_encoding_NDX = 1 + _sun_java2d_fontpath_NDX;
+ @Native private static final int _sun_os_patch_level_NDX = 1 + _sun_jnu_encoding_NDX;
+ @Native private static final int _sun_stderr_encoding_NDX = 1 + _sun_os_patch_level_NDX;
+ @Native private static final int _sun_stdout_encoding_NDX = 1 + _sun_stderr_encoding_NDX;
+ @Native private static final int _user_dir_NDX = 1 + _sun_stdout_encoding_NDX;
+ @Native private static final int _user_home_NDX = 1 + _user_dir_NDX;
+ @Native private static final int _user_name_NDX = 1 + _user_home_NDX;
+ @Native private static final int FIXED_LENGTH = 1 + _user_name_NDX;
+
+ // Array of Strings returned from the VM and Command line properties
+ // The array is not used after initialization is complete.
+ private final String[] platformProps;
+
+ private Raw() {
+ platformProps = platformProperties();
+ }
+
+ /**
+ * Return the value for a well known default from native.
+ * @param index the index of the known property
+ * @return the value
+ */
+ String propDefault(int index) {
+ return platformProps[index];
+ }
+
+ /**
+ * Return a Properties instance of the command line and VM options
+ * defined by name and value.
+ * The Properties instance is sized to include the fixed properties.
+ *
+ * @return return a Properties instance of the command line and VM options
+ */
+ private Properties cmdProperties() {
+ String[] vmProps = vmProperties();
+ int nProps = vmProps.length / 2;
+ var cmdProps = new Properties(nProps + Raw.FIXED_LENGTH);
+ for (int i = 0; i < nProps; i++) {
+ String k = vmProps[i * 2];
+ if (k != null) {
+ String v = vmProps[i * 2 + 1];
+ cmdProps.setProperty(k, v != null ? v : "");
+ } else {
+ // no more key/value pairs
+ break;
+ }
+ }
+ return cmdProps;
+ }
+
+ /**
+ * Returns the available VM and Command Line Properties.
+ * The VM supplies some key/value pairs and processes the command line
+ * to extract key/value pairs from the {@code "-Dkey=value"} arguments.
+ *
+ * @return an array of strings, with alternating key and value strings.
+ * Either keys or values may be null, the array may not be full.
+ * The first null key indicates there are no more key, value pairs.
+ */
+ private static native String[] vmProperties();
+
+ /**
+ * Returns the platform specific property values identified
+ * by {@code "_xxx_NDX"} indexes.
+ * The indexes are strictly private, to be shared only with the native code.
+ *
+ * @return a array of strings, the properties are indexed by the {@code _xxx_NDX}
+ * indexes. The values are Strings and may be null.
+ */
+ private static native String[] platformProperties();
+ }
+}