< prev index next >

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

Print this page

        

*** 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 { --- 22,39 ---- * 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.*; + import java.nio.*; + import java.nio.charset.*; /* * 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()); } --- 49,95 ---- } return agentProps; } private static native Properties initAgentProperties(Properties props); + private static String convertToBytesStr(String str, boolean escapeSpace) throws Exception { + if (escapeSpace) { + str = str.replace(" ", "\\ "); + } + + var charBuf = CharBuffer.wrap(str); + var byteBuf = ByteBuffer.allocate(charBuf.length() * 5); // 1 unicode char might have 4 digits + 2 ('\u') + var encoder = StandardCharsets.ISO_8859_1 + .newEncoder() + .onUnmappableCharacter(CodingErrorAction.REPORT); + CoderResult result; + do { + result = encoder.encode(charBuf, byteBuf, false); + if (result.isUnmappable()) { + byteBuf.put(String.format("\\u%04X", (int)charBuf.get()).getBytes()); + } else if (result.isError()) { + result.throwException(); + } + } while (result.isError()); + + return new String(byteBuf.array()); + } + /** * 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 { ! 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()); }
< prev index next >