Tomcat java compiler ignores annotations

bill.burke Aug 11, 2006 3:06 PM

The java compiler that compiles JSPs that comes with Tomcat does not insert annotation information into the .class bytes. This means that if you use @EJB, or whatever in your USP, the field/method it is annotated to will not have the annotation embedded in bytecode. Thus any annotation processor will fail.

I haven't tried the old ANT way of doing this stuff yes, but we may have to revert to that. Should I reenable the ant stuff if it does the appropriate annotation compilation?

1. Re: Tomcat java compiler ignores annotations

starksm64 Aug 11, 2006 5:29 PM (in response to bill.burke)

It looks like it is there in the output of the eclipse3.2 compiler. Tomcat is using the one from 3.1 as far as I know.

[starksm@succubus eclipse-test-classes]$ javap -c -verbose TestAnno
Compiled from "TestAnno.java"
public class TestAnno extends java.lang.Object
 SourceFile: "TestAnno.java"
 Deprecated: length = 0x

 RuntimeVisibleAnnotations: length = 0x6
 00 01 00 12 00 00
 minor version: 0
 major version: 49
 Constant pool:
const #1 = class #2; // TestAnno
const #2 = Asciz TestAnno;
const #3 = class #4; // java/lang/Object
const #4 = Asciz java/lang/Object;
const #5 = Asciz <init>;
const #6 = Asciz ()V;
const #7 = Asciz Code;
const #8 = Method #3.#9; // java/lang/Object."<init>":()V
const #9 = NameAndType #5:#6;// "<init>":()V
const #10 = Asciz LineNumberTable;
const #11 = Asciz LocalVariableTable;
const #12 = Asciz this;
const #13 = Asciz LTestAnno;;
const #14 = Asciz SourceFile;
const #15 = Asciz TestAnno.java;
const #16 = Asciz Deprecated;
const #17 = Asciz RuntimeVisibleAnnotations;
const #18 = Asciz Ljava/lang/Deprecated;;

{
public TestAnno();
 Code:
 Stack=1, Locals=1, Args_size=1
 0: aload_0
 1: invokespecial #8; //Method java/lang/Object."<init>":()V
 4: return
 LineNumberTable:
 line 3: 0
 LocalVariableTable:
 Start Length Slot Name Signature
 0 5 0 this LTestAnno;

}