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Runtime.java, [...]: Replaced java.lang.Runtime.securityManager by java.lang.SecurityManager.current...

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2005-04-25  Michael Koch  <konqueror@gmx.de>

	* java/lang/Runtime.java,
	java/lang/SecurityManager.java,
	java/lang/System.java,
	java/lang/ThreadGroup.java:
	Replaced java.lang.Runtime.securityManager by
	java.lang.SecurityManager.current (as used in GNU classpath).

From-SVN: r98738
This commit is contained in:
Michael Koch 2005-04-25 20:35:17 +00:00 • committed by Michael Koch
parent 1f4ea3f2fa
commit 4b30c6bda0
5 changed files with 39 additions and 30 deletions
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9
libjava/ChangeLog
View file

@ -1,3 +1,12 @@
2005-04-25 Michael Koch <konqueror@gmx.de>
* java/lang/Runtime.java,
java/lang/SecurityManager.java,
java/lang/System.java,
java/lang/ThreadGroup.java:
Replaced java.lang.Runtime.securityManager by
java.lang.SecurityManager.current (as used in GNU classpath).
2005-04-25 David Gilbert <david.gilbert@object-refinery.com>
* java/awt/Transparency.java

24
libjava/java/lang/Runtime.java
View file

@ -65,14 +65,6 @@ public class Runtime
*/
private final String[] libpath;
/**
* The current security manager. This is located here instead of in
* System, to avoid security problems, as well as bootstrap issues.
* Make sure to access it in a thread-safe manner; it is package visible
* to avoid overhead in java.lang.
*/
static SecurityManager securityManager;
static
{
init();
@ -151,7 +143,7 @@ public class Runtime
*/
public void exit(int status)
{
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkExit(status);
boolean first = false;
@ -279,7 +271,7 @@ public class Runtime
*/
public void addShutdownHook(Thread hook)
{
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkPermission(new RuntimePermission("shutdownHooks"));
if (hook.isAlive() || hook.getThreadGroup() == null)
@ -313,7 +305,7 @@ public class Runtime
*/
public boolean removeShutdownHook(Thread hook)
{
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkPermission(new RuntimePermission("shutdownHooks"));
synchronized (libpath)
@ -340,7 +332,7 @@ public class Runtime
*/
public void halt(int status)
{
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkExit(status);
exitInternal(status);
@ -364,7 +356,7 @@ public class Runtime
*/
public static void runFinalizersOnExit(boolean finalizeOnExit)
{
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkExit(0);
current.finalizeOnExit = finalizeOnExit;
@ -494,7 +486,7 @@ public class Runtime
public Process exec(String[] cmd, String[] env, File dir)
throws IOException
{
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkExec(cmd[0]);
return execInternal(cmd, env, dir);
@ -581,7 +573,7 @@ public class Runtime
*/
public void load(String filename)
{
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkLink(filename);
_load(filename, false);
@ -611,7 +603,7 @@ public class Runtime
{
// This is different from the Classpath implementation, but I
// believe it is more correct.
SecurityManager sm = securityManager; // Be thread-safe!
SecurityManager sm = SecurityManager.current; // Be thread-safe!
if (sm != null)
sm.checkLink(libname);
_load(libname, true);

8
libjava/java/lang/SecurityManager.java
View file

@ -125,6 +125,14 @@ import java.util.PropertyPermission;
*/
public class SecurityManager
{
/**
* The current security manager. This is located here instead of in
* System, to avoid security problems, as well as bootstrap issues.
* Make sure to access it in a thread-safe manner; it is package visible
* to avoid overhead in java.lang.
*/
static volatile SecurityManager current;
/**
* Tells whether or not the SecurityManager is currently performing a
* security check.

26
libjava/java/lang/System.java
View file

@ -120,7 +120,7 @@ public final class System
*/
public static void setIn(InputStream in)
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPermission(new RuntimePermission("setIO"));
setIn0(in);
@ -137,7 +137,7 @@ public final class System
*/
public static void setOut(PrintStream out)
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPermission(new RuntimePermission("setIO"));
@ -155,7 +155,7 @@ public final class System
*/
public static void setErr(PrintStream err)
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPermission(new RuntimePermission("setIO"));
setErr0(err);
@ -180,10 +180,10 @@ public final class System
// Implementation note: the field lives in Runtime because of bootstrap
// initialization issues. This method is synchronized so that no other
// thread changes it to null before this thread makes the change.
if (Runtime.securityManager != null)
Runtime.securityManager.checkPermission
if (SecurityManager.current != null)
SecurityManager.current.checkPermission
(new RuntimePermission("setSecurityManager"));
Runtime.securityManager = sm;
SecurityManager.current = sm;
}
/**
@ -196,7 +196,7 @@ public final class System
{
// Implementation note: the field lives in Runtime because of bootstrap
// initialization issues.
return Runtime.securityManager;
return SecurityManager.current;
}
/**
@ -309,7 +309,7 @@ public final class System
*/
public static Properties getProperties()
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPropertiesAccess();
return SystemProperties.getProperties();
@ -326,7 +326,7 @@ public final class System
*/
public static void setProperties(Properties properties)
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPropertiesAccess();
SystemProperties.setProperties(properties);
@ -344,7 +344,7 @@ public final class System
*/
public static String getProperty(String key)
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPropertyAccess(key);
else if (key.length() == 0)
@ -365,7 +365,7 @@ public final class System
*/
public static String getProperty(String key, String def)
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPropertyAccess(key);
return SystemProperties.getProperty(key, def);
@ -385,7 +385,7 @@ public final class System
*/
public static String setProperty(String key, String value)
{
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPermission(new PropertyPermission(key, "write"));
return SystemProperties.setProperty(key, value);
@ -407,7 +407,7 @@ public final class System
{
if (name == null)
throw new NullPointerException();
SecurityManager sm = Runtime.securityManager; // Be thread-safe.
SecurityManager sm = SecurityManager.current; // Be thread-safe.
if (sm != null)
sm.checkPermission(new RuntimePermission("getenv." + name));
return getenv0(name);

2
libjava/java/lang/ThreadGroup.java
View file

@ -263,7 +263,7 @@ public class ThreadGroup
public final void checkAccess()
{
// Bypass System.getSecurityManager, for bootstrap efficiency.
SecurityManager sm = Runtime.securityManager;
SecurityManager sm = SecurityManager.current;
if (sm != null)
sm.checkAccess(this);
}