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04b6e378
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体验新版 GitCode,发现更多精彩内容 >>
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04b6e378
编写于
6月 10, 2009
作者:
M
mullan
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电子邮件补丁
差异文件
6845161: Bottleneck in Configuration.getConfiguration synchronized call
Summary: Reduce scope of synchronized block Reviewed-by: weijun
上级
848d26e6
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
42 addition
and
40 deletion
+42
-40
src/share/classes/javax/security/auth/login/Configuration.java
...hare/classes/javax/security/auth/login/Configuration.java
+42
-40
未找到文件。
src/share/classes/javax/security/auth/login/Configuration.java
浏览文件 @
04b6e378
/*
* Copyright 1998-200
6
Sun Microsystems, Inc. All Rights Reserved.
* Copyright 1998-200
9
Sun Microsystems, Inc. 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
...
...
@@ -234,56 +234,58 @@ public abstract class Configuration {
*
* @see #setConfiguration
*/
public
static
synchronized
Configuration
getConfiguration
()
{
public
static
Configuration
getConfiguration
()
{
SecurityManager
sm
=
System
.
getSecurityManager
();
if
(
sm
!=
null
)
sm
.
checkPermission
(
new
AuthPermission
(
"getLoginConfiguration"
));
if
(
configuration
==
null
)
{
String
config_class
=
null
;
config_class
=
AccessController
.
doPrivileged
(
new
PrivilegedAction
<
String
>()
{
public
String
run
()
{
return
java
.
security
.
Security
.
getProperty
(
"login.configuration.provider"
);
synchronized
(
Configuration
.
class
)
{
if
(
configuration
==
null
)
{
String
config_class
=
null
;
config_class
=
AccessController
.
doPrivileged
(
new
PrivilegedAction
<
String
>()
{
public
String
run
()
{
return
java
.
security
.
Security
.
getProperty
(
"login.configuration.provider"
);
}
});
if
(
config_class
==
null
)
{
config_class
=
"com.sun.security.auth.login.ConfigFile"
;
}
});
if
(
config_class
==
null
)
{
config_class
=
"com.sun.security.auth.login.ConfigFile"
;
}
try
{
final
String
finalClass
=
config_class
;
configuration
=
AccessController
.
doPrivileged
(
new
PrivilegedExceptionAction
<
Configuration
>()
{
public
Configuration
run
()
throws
ClassNotFoundException
,
InstantiationException
,
IllegalAccessException
{
return
(
Configuration
)
Class
.
forName
(
finalClass
,
true
,
contextClassLoader
).
newInstance
();
try
{
final
String
finalClass
=
config_class
;
configuration
=
AccessController
.
doPrivileged
(
new
PrivilegedExceptionAction
<
Configuration
>()
{
public
Configuration
run
()
throws
ClassNotFoundException
,
InstantiationException
,
IllegalAccessException
{
return
(
Configuration
)
Class
.
forName
(
finalClass
,
true
,
contextClassLoader
).
newInstance
();
}
});
}
catch
(
PrivilegedActionException
e
)
{
Exception
ee
=
e
.
getException
();
if
(
ee
instanceof
InstantiationException
)
{
throw
(
SecurityException
)
new
SecurityException
(
"Configuration error:"
+
ee
.
getCause
().
getMessage
()
+
"\n"
).
initCause
(
ee
.
getCause
());
}
else
{
throw
(
SecurityException
)
new
SecurityException
(
"Configuration error: "
+
ee
.
toString
()
+
"\n"
).
initCause
(
ee
);
}
});
}
catch
(
PrivilegedActionException
e
)
{
Exception
ee
=
e
.
getException
();
if
(
ee
instanceof
InstantiationException
)
{
throw
(
SecurityException
)
new
SecurityException
(
"Configuration error:"
+
ee
.
getCause
().
getMessage
()
+
"\n"
).
initCause
(
ee
.
getCause
());
}
else
{
throw
(
SecurityException
)
new
SecurityException
(
"Configuration error: "
+
ee
.
toString
()
+
"\n"
).
initCause
(
ee
);
}
}
return
configuration
;
}
return
configuration
;
}
/**
...
...
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