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8332029: Provide access to initial value of stderr via JavaLangAccess

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Reviewed-by: jpai, bpb, mcimadamore
This commit is contained in:
Alan Bateman 2024-05-11 07:36:52 +00:00
parent f9a1d3381b
commit 32c7681cf3
3 changed files with 25 additions and 10 deletions
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19
src/java.base/share/classes/java/lang/System.java
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@ -191,8 +191,9 @@ public final class System {
*/
public static final PrintStream err = null;
// Holder for the initial value of `in`, set within `initPhase1()`.
private static InputStream initialIn;
// Initial values of System.in and System.err, set in initPhase1().
private static @Stable InputStream initialIn;
private static @Stable PrintStream initialErr;
// indicates if a security manager is possible
private static final int NEVER = 1;
@ -355,9 +356,6 @@ public final class System {
= Collections.synchronizedMap(new WeakHashMap<>());
}
// Remember initial System.err. setSecurityManager() warning goes here
private static volatile @Stable PrintStream initialErrStream;
private static URL codeSource(Class<?> clazz) {
PrivilegedAction<ProtectionDomain> pa = clazz::getProtectionDomain;
@SuppressWarnings("removal")
@ -417,7 +415,7 @@ public final class System {
} else {
source = callerClass.getName() + " (" + url + ")";
}
initialErrStream.printf("""
initialErr.printf("""
WARNING: A terminally deprecated method in java.lang.System has been called
WARNING: System::setSecurityManager has been called by %s
WARNING: Please consider reporting this to the maintainers of %s
@ -2200,7 +2198,8 @@ public final class System {
// thus they are equivalent to Console.charset(), otherwise the encodings
// of those properties default to native.encoding
setOut0(newPrintStream(fdOut, props.getProperty("stdout.encoding")));
setErr0(newPrintStream(fdErr, props.getProperty("stderr.encoding")));
initialErr = newPrintStream(fdErr, props.getProperty("stderr.encoding"));
setErr0(initialErr);
// Setup Java signal handlers for HUP, TERM, and INT (where available).
Terminator.setup();
@ -2406,8 +2405,6 @@ public final class System {
notSupportedJnuEncoding);
}
initialErrStream = System.err;
// initializing the system class loader
VM.initLevel(3);
@ -2598,6 +2595,10 @@ public final class System {
return initialIn;
}
public PrintStream initialSystemErr() {
return initialErr;
}
public void setCause(Throwable t, Throwable cause) {
t.setCause(cause);
}