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8222491: jcmd can fail converting UTF8 output to strings

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Reviewed-by: jcbeyler, clanger, dholmes
This commit is contained in:
Ralf Schmelter 2019-04-15 06:41:02 -07:00
parent bdf5b6e337
commit 11e6f439e0
1 changed files with 7 additions and 5 deletions

12
src/jdk.jcmd/share/classes/sun/tools/jcmd/JCmd.java

@ -1,5 +1,5 @@
/*
* Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2019, 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
@ -26,6 +26,7 @@
package sun.tools.jcmd;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.List;
@ -121,15 +122,16 @@ public class JCmd {
if (line.trim().equals("stop")) {
break;
}
try (InputStream in = hvm.executeJCmd(line);) {
try (InputStream in = hvm.executeJCmd(line);
InputStreamReader isr = new InputStreamReader(in, "UTF-8")) {
// read to EOF and just print output
byte b[] = new byte[256];
char c[] = new char[256];
int n;
boolean messagePrinted = false;
do {
n = in.read(b);
n = isr.read(c);
if (n > 0) {
String s = new String(b, 0, n, "UTF-8");
String s = new String(c, 0, n);
System.out.print(s);
messagePrinted = true;
}