Document expected values for class/field/method access modifiers

Author: mcculls

class-match/src/main/java/datadog/instrument/classmatch/ClassHeader.java

@@ -9,7 +9,12 @@
 /** Minimal class header that describes its access modifiers and immediate class hierarchy. */
 public class ClassHeader {
 
-  /** Access modifiers for this class. */
+  /**
+   * Access modifiers for this class.
+   *
+   * @see <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.1-200-E.1">
+   *     Expected values</a>
+   */
   public final int access;
 
   /** Internal name of this class. */

class-match/src/main/java/datadog/instrument/classmatch/FieldOutline.java

@@ -11,7 +11,12 @@
 /** Outlines a field; access modifiers, field name, descriptor. */
 public final class FieldOutline {
 
-  /** Access modifiers for this field. */
+  /**
+   * Access modifiers for this field.
+   *
+   * @see <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.5-200-A.1">
+   *     Expected values</a>
+   */
   public final int access;
 
   /** Name of this field. */

class-match/src/main/java/datadog/instrument/classmatch/MethodOutline.java

@@ -12,7 +12,12 @@
 /** Outlines a method; access modifiers, method name, descriptor, annotations. */
 public final class MethodOutline {
 
-  /** Access modifiers for this method. */
+  /**
+   * Access modifiers for this method.
+   *
+   * @see <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.6-200-A.1">
+   *     Expected values</a>
+   */
   public final int access;
 
   /** Name of this method. */