In order to support fields of the same name in subclasses we are now prefixing them with name of the class that defines them. To provide convenient way to access them from generated bytecode and also directly from JavaScript, there is a getter/setter function for each field. It starts with _ followed by the field name. If called with a parameter, it sets the field, with a parameter it just returns it.
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29 * An {@code Error} is a subclass of {@code Throwable}
30 * that indicates serious problems that a reasonable application
31 * should not try to catch. Most such errors are abnormal conditions.
32 * The {@code ThreadDeath} error, though a "normal" condition,
33 * is also a subclass of {@code Error} because most applications
34 * should not try to catch it.
36 * A method is not required to declare in its {@code throws}
37 * clause any subclasses of {@code Error} that might be thrown
38 * during the execution of the method but not caught, since these
39 * errors are abnormal conditions that should never occur.
41 * That is, {@code Error} and its subclasses are regarded as unchecked
42 * exceptions for the purposes of compile-time checking of exceptions.
44 * @author Frank Yellin
45 * @see java.lang.ThreadDeath
46 * @jls 11.2 Compile-Time Checking of Exceptions
49 public class Error extends Throwable {
50 static final long serialVersionUID = 4980196508277280342L;
53 * Constructs a new error with {@code null} as its detail message.
54 * The cause is not initialized, and may subsequently be initialized by a
55 * call to {@link #initCause}.
62 * Constructs a new error with the specified detail message. The
63 * cause is not initialized, and may subsequently be initialized by
64 * a call to {@link #initCause}.
66 * @param message the detail message. The detail message is saved for
67 * later retrieval by the {@link #getMessage()} method.
69 public Error(String message) {
74 * Constructs a new error with the specified detail message and
75 * cause. <p>Note that the detail message associated with
76 * {@code cause} is <i>not</i> automatically incorporated in
77 * this error's detail message.
79 * @param message the detail message (which is saved for later retrieval
80 * by the {@link #getMessage()} method).
81 * @param cause the cause (which is saved for later retrieval by the
82 * {@link #getCause()} method). (A {@code null} value is
83 * permitted, and indicates that the cause is nonexistent or
87 public Error(String message, Throwable cause) {
88 super(message, cause);
92 * Constructs a new error with the specified cause and a detail
93 * message of {@code (cause==null ? null : cause.toString())} (which
94 * typically contains the class and detail message of {@code cause}).
95 * This constructor is useful for errors that are little more than
96 * wrappers for other throwables.
98 * @param cause the cause (which is saved for later retrieval by the
99 * {@link #getCause()} method). (A {@code null} value is
100 * permitted, and indicates that the cause is nonexistent or
104 public Error(Throwable cause) {
109 * Constructs a new error with the specified detail message,
110 * cause, suppression enabled or disabled, and writable stack
111 * trace enabled or disabled.
113 * @param message the detail message.
114 * @param cause the cause. (A {@code null} value is permitted,
115 * and indicates that the cause is nonexistent or unknown.)
116 * @param enableSuppression whether or not suppression is enabled
118 * @param writableStackTrace whether or not the stack trace should
123 protected Error(String message, Throwable cause,
124 boolean enableSuppression,
125 boolean writableStackTrace) {
126 super(message, cause, enableSuppression, writableStackTrace);