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jdk/src/java.base/share/classes/jdk/internal/vm/annotation/ReservedStackAccess.java

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  28 import java.lang.annotation.ElementType;
  29 import java.lang.annotation.Retention;
  30 import java.lang.annotation.RetentionPolicy;
  31 import java.lang.annotation.Target;
  32 
  33 /**
  34  * <p>An annotation expressing that a method is especially sensitive
  35  * to stack overflows. This is a hint the JVM can use to grant access to
  36  * extra stack space when executing this code if such feature is supported
  37  * by the JVM. The JVM is free to ignore this annotation.
  38  *
  39  * A possible way for the JVM to improve the execution context for methods
  40  * with this annotation is to reserve part of the thread's execution stack
  41  * for them. Access to this section of the stack would be denied by default
  42  * but could be granted if the JVM detects a possible stack overflow and
  43  * the thread's call stack includes at least one annotated method. Even if
  44  * access to this reserved area has been granted, the JVM might decide to
  45  * throw a delayed StackOverflowError when the thread exits the annotated
  46  * method.
  47  *
  48  * @since 1.9
  49  */
  50 @Retention(RetentionPolicy.RUNTIME)
  51 @Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
  52 public @interface ReservedStackAccess { }


  28 import java.lang.annotation.ElementType;
  29 import java.lang.annotation.Retention;
  30 import java.lang.annotation.RetentionPolicy;
  31 import java.lang.annotation.Target;
  32 
  33 /**
  34  * <p>An annotation expressing that a method is especially sensitive
  35  * to stack overflows. This is a hint the JVM can use to grant access to
  36  * extra stack space when executing this code if such feature is supported
  37  * by the JVM. The JVM is free to ignore this annotation.
  38  *
  39  * A possible way for the JVM to improve the execution context for methods
  40  * with this annotation is to reserve part of the thread's execution stack
  41  * for them. Access to this section of the stack would be denied by default
  42  * but could be granted if the JVM detects a possible stack overflow and
  43  * the thread's call stack includes at least one annotated method. Even if
  44  * access to this reserved area has been granted, the JVM might decide to
  45  * throw a delayed StackOverflowError when the thread exits the annotated
  46  * method.
  47  *
  48  * @since 9
  49  */
  50 @Retention(RetentionPolicy.RUNTIME)
  51 @Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
  52 public @interface ReservedStackAccess { }
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