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src/java.base/share/classes/jdk/internal/vm/VMSupport.java

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*** 1,7 **** /* ! * Copyright (c) 2005, 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 --- 1,7 ---- /* ! * Copyright (c) 2005, 2020, 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
*** 22,38 **** * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.internal.vm; - import java.io.ByteArrayOutputStream; import java.io.IOException; import java.util.Properties; - import java.util.Set; import java.util.jar.JarFile; import java.util.jar.Manifest; import java.util.jar.Attributes; /* * Support class used by JVMTI and VM attach mechanism. */ public class VMSupport { --- 22,37 ---- * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.internal.vm; import java.io.IOException; import java.util.Properties; import java.util.jar.JarFile; import java.util.jar.Manifest; import java.util.jar.Attributes; + import java.util.*; /* * Support class used by JVMTI and VM attach mechanism. */ public class VMSupport {
*** 48,76 **** } return agentProps; } private static native Properties initAgentProperties(Properties props); /** * Write the given properties list to a byte array and return it. Properties with ! * a key or value that is not a String is filtered out. The stream written to the byte ! * array is ISO 8859-1 encoded. */ private static byte[] serializePropertiesToByteArray(Properties p) throws IOException { ! ByteArrayOutputStream out = new ByteArrayOutputStream(4096); ! ! Properties props = new Properties(); ! ! // stringPropertyNames() returns a snapshot of the property keys ! Set<String> keyset = p.stringPropertyNames(); ! for (String key : keyset) { ! String value = p.getProperty(key); ! props.put(key, value); } ! ! props.store(out, null); ! return out.toByteArray(); } public static byte[] serializePropertiesToByteArray() throws IOException { return serializePropertiesToByteArray(System.getProperties()); } --- 47,87 ---- } return agentProps; } private static native Properties initAgentProperties(Properties props); + private static String convertToBytesStr(String str, boolean escapeSpace) throws Exception { + str = str.replace("\n", "\\n") + .replace("\r", "\\r") + .replace("\t", "\\t") + .replace("\f", "\\f"); + if (escapeSpace) { + str = str.replace(" ", "\\ "); + } + + String result = ""; + for (char ch : str.toCharArray()) { + result += ((ch < 0x20) || (ch > 0x7e)) ? String.format("\\u%04X", (int)ch) + : ch; + } + + return result; + } + /** * Write the given properties list to a byte array and return it. Properties with ! * a key or value that is not a String is filtered out. */ private static byte[] serializePropertiesToByteArray(Properties p) throws IOException { ! var joiner = new StringJoiner("\n"); ! joiner.add((new Date()).toString()); ! for (var entry : p.entrySet()) { ! var key = convertToBytes(entry.getKey().toString(), true); ! var value = convertToBytes(entry.getValue().toString(), false); ! joiner.add(key + "=" + value); } ! return joiner.toString().getBytes(); } public static byte[] serializePropertiesToByteArray() throws IOException { return serializePropertiesToByteArray(System.getProperties()); }
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