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8301964: Expensive fillInStackTrace operation in HttpURLConnection.getLastModified when no last-modified in response

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Reviewed-by: dfuchs, jpai, alanb
This commit is contained in:
Andrey Turbanov 2023-02-25 13:39:36 +00:00
parent 1dbd18ac63
commit 3a9f491caa
3 changed files with 32 additions and 32 deletions
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16
src/java.base/share/classes/java/net/HttpURLConnection.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1996, 2021, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1996, 2023, 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
@ -599,16 +599,18 @@ public abstract class HttpURLConnection extends URLConnection {
}
@SuppressWarnings("deprecation")
public long getHeaderFieldDate(String name, long Default) {
public long getHeaderFieldDate(String name, long defaultValue) {
String dateString = getHeaderField(name);
try {
if (dateString != null) {
if (!dateString.contains("GMT")) {
dateString = dateString+" GMT";
dateString = dateString + " GMT";
}
try {
return Date.parse(dateString);
} catch (Exception e) {
}
return Date.parse(dateString);
} catch (Exception e) {
}
return Default;
return defaultValue;
}

33
src/java.base/share/classes/java/net/URLConnection.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1995, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1995, 2023, 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
@ -33,7 +33,6 @@ import java.util.Hashtable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.Date;
import java.util.Iterator;
import java.util.Locale;
import java.util.Objects;
import java.util.ServiceConfigurationError;
import java.util.ServiceLoader;
@ -612,20 +611,20 @@ public abstract class URLConnection {
* headers. Classes for that connection type can override this method
* and short-circuit the parsing.
*
* @param name the name of the header field.
* @param Default the default value.
* @param name the name of the header field.
* @param defaultValue the default value.
* @return the value of the named field, parsed as an integer. The
* {@code Default} value is returned if the field is
* {@code defaultValue} value is returned if the field is
* missing or malformed.
*/
public int getHeaderFieldInt(String name, int Default) {
public int getHeaderFieldInt(String name, int defaultValue) {
final String value = getHeaderField(name);
if (value != null) {
try {
return Integer.parseInt(value);
} catch (NumberFormatException e) { }
}
return Default;
return defaultValue;
}
/**
@ -636,21 +635,21 @@ public abstract class URLConnection {
* headers. Classes for that connection type can override this method
* and short-circuit the parsing.
*
* @param name the name of the header field.
* @param Default the default value.
* @param name the name of the header field.
* @param defaultValue the default value.
* @return the value of the named field, parsed as a long. The
* {@code Default} value is returned if the field is
* {@code defaultValue} value is returned if the field is
* missing or malformed.
* @since 1.7
*/
public long getHeaderFieldLong(String name, long Default) {
public long getHeaderFieldLong(String name, long defaultValue) {
final String value = getHeaderField(name);
if (value != null) {
try {
return Long.parseLong(value);
} catch (NumberFormatException e) { }
}
return Default;
return defaultValue;
}
/**
@ -663,21 +662,21 @@ public abstract class URLConnection {
* headers. Classes for that connection type can override this method
* and short-circuit the parsing.
*
* @param name the name of the header field.
* @param Default a default value.
* @param name the name of the header field.
* @param defaultValue a default value.
* @return the value of the field, parsed as a date. The value of the
* {@code Default} argument is returned if the field is
* {@code defaultValue} argument is returned if the field is
* missing or malformed.
*/
@SuppressWarnings("deprecation")
public long getHeaderFieldDate(String name, long Default) {
public long getHeaderFieldDate(String name, long defaultValue) {
final String value = getHeaderField(name);
if (value != null) {
try {
return Date.parse(value);
} catch (Exception e) { }
}
return Default;
return defaultValue;
}
/**