8048805: Request to investigate and update lexer error recovery in javac
8046620: Further investigation needed for few error messages for negative unicode tests in langtools regression ws
8048803: javac should report complete character code in the error messages
Summary: Improving error reporting and recovery in the lexer
Reviewed-by: jjg, mcimadamore
Contributed-by: jan.lahoda@oracle.com, sonali.goel@oracle.com
/*
* @test /nodynamiccopyright/
* @bug 4707960 6183529 8046620
* @summary javac accepts unicode digits - sometimes crashing
* @author gafter
*
* @compile/fail/ref=NonasciiDigit.out -XDrawDiagnostics NonasciiDigit.java
*/
public class NonasciiDigit {
public static void main(String[] args) {
// error: only ASCII allowed in constants
int i1 = \uff11;
int i2 = 1\uff11;
int i3 = \ud835\udfff;
// error: floating literals use ascii only
double d1 = \uff11.0;
double d2 = 0.\uff11;
double d3 = 0x0P\uff11;
double d4 = 0E\uff11;
double d5 = .\uff11;
double d6 = \ud835\udfff.0;
}
}