510 parameters[i] = in.readObject();
511 }
512 }
513 // If necessary, try to regenerate the resource bundle.
514 if (resourceBundleName != null) {
515 try {
516 resourceBundle = ResourceBundle.getBundle(resourceBundleName);
517 } catch (MissingResourceException ex) {
518 // This is not a good place to throw an exception,
519 // so we simply leave the resourceBundle null.
520 resourceBundle = null;
521 }
522 }
523
524 needToInferCaller = false;
525 }
526
527 // Private method to infer the caller's class and method names
528 private void inferCaller() {
529 needToInferCaller = false;
530 JavaLangAccess access = SharedSecrets.getJavaLangAccess();
531 Throwable throwable = new Throwable();
532 int depth = access.getStackTraceDepth(throwable);
533
534 boolean lookingForLogger = true;
535 for (int ix = 0; ix < depth; ix++) {
536 // Calling getStackTraceElement directly prevents the VM
537 // from paying the cost of building the entire stack frame.
538 StackTraceElement frame =
539 access.getStackTraceElement(throwable, ix);
540 String cname = frame.getClassName();
541 boolean isLoggerImpl = isLoggerImplFrame(cname);
542 if (lookingForLogger) {
543 // Skip all frames until we have found the first logger frame.
544 if (isLoggerImpl) {
545 lookingForLogger = false;
546 }
547 } else {
548 if (!isLoggerImpl) {
549 // skip reflection call
550 if (!cname.startsWith("java.lang.reflect.") && !cname.startsWith("sun.reflect.")) {
551 // We've found the relevant frame.
552 setSourceClassName(cname);
553 setSourceMethodName(frame.getMethodName());
554 return;
555 }
556 }
557 }
558 }
559 // We haven't found a suitable frame, so just punt. This is
560 // OK as we are only committed to making a "best effort" here.
561 }
562
563 private boolean isLoggerImplFrame(String cname) {
564 // the log record could be created for a platform logger
565 return (cname.equals("java.util.logging.Logger") ||
566 cname.startsWith("java.util.logging.LoggingProxyImpl") ||
567 cname.startsWith("sun.util.logging."));
568 }
569 }
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510 parameters[i] = in.readObject();
511 }
512 }
513 // If necessary, try to regenerate the resource bundle.
514 if (resourceBundleName != null) {
515 try {
516 resourceBundle = ResourceBundle.getBundle(resourceBundleName);
517 } catch (MissingResourceException ex) {
518 // This is not a good place to throw an exception,
519 // so we simply leave the resourceBundle null.
520 resourceBundle = null;
521 }
522 }
523
524 needToInferCaller = false;
525 }
526
527 // Private method to infer the caller's class and method names
528 private void inferCaller() {
529 needToInferCaller = false;
530 // Skip all frames until we have found the first logger frame.
531 StackTraceElement frame =
532 Thread.firstCaller(e -> {return !isLoggerImplFrame(e.getClassName()); },
533 StackFrameInfo::stackTraceElement);
534 if (frame != null) {
535 setSourceClassName(frame.getClassName());
536 setSourceMethodName(frame.getMethodName());
537 }
538 // We haven't found a suitable frame, so just punt. This is
539 // OK as we are only committed to making a "best effort" here.
540 }
541
542 private boolean isLoggerImplFrame(String cname) {
543 // the log record could be created for a platform logger
544 return (cname.startsWith("java.util.logging.") ||
545 cname.startsWith("sun.util.logging."));
546 }
547 }
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