Static fields with default string values cause uncaught TypeError, since string pool is not yet initialized

It will fail to execute with “app.js:445Uncaught TypeError: Cannot read property ‘0’ of undefined”

How to reproduce

    public final static String CONST1 = "FIRST";
    public  final static String CONST2 = "SECOND";

    boolean isTrue = (new Random().nextBoolean());

    StringBuffer buf = new StringBuffer(10);
    buf.append((isTrue ? CONST1 : CONST2)).append(" ");
    System.out.println(buf.toString());

Expanding it works

    public final static String CONST1 = "FIRST";
    public  final static String CONST2 = "SECOND";

    boolean isTrue = (new Random().nextBoolean());

    StringBuffer buf = new StringBuffer(10);
        if (isTrue)
        {
            buf.append(CONST1).append(" ");
        }
        else
        {
            buf.append(CONST2).append(" ");
        }
    System.out.println(buf.toString());

[konsoletyper]

I found the reason. Usually, javac does not put getstatic instructions in such cases, instead it can inline constants with ldc. However, for some reason (probably, a bug) javac does not inline constants in conditional expressions. CONST1 and CONST2 do not get their value via <clinit> method, instead they have default values specified. TeaVM initializes them via $rt_s, which requires string pool to be prepared. String pools are initialized after all declarations, so string pool has undefined value when static fields compute their default values. A probable solution would be to initialize string static fields after initialization of string pool.

[Wolftein]

public final class Example {
    public final static String CONST1 = "FIRST";
    public final static String CONST2 = "SECOND";

    public static void main(String[] argv) {
        boolean isTrue = (new Random().nextBoolean());

        StringBuilder buf = new StringBuilder();
        buf.append(isTrue ? CONST1 : CONST2);

        System.out.println(buf.toString());
    }
}

app.js:1107: oqe_Example24.CONST125 = $rt_s(0);
app.js:1108: oqe_Example24.CONST226 = $rt_s(1);

app.js:445: return $rt_stringPool_instance[index];

function oqe_Example24_main26(a) {
    var b, c;
    b = ju_Random33_nextBoolean27(ju_Random33_$init4());
    c = jl_StringBuilder113_$init4();
    if (b == 0) {
        a = oqe_Example24.CONST226;
    } else {
        a = oqe_Example24.CONST125;
    }
    jl_StringBuilder113_append28(c, a);
    jl_System20_$clinit();
    ji_PrintStream161_println29(jl_System20.out23, jl_StringBuilder113_toString30(c));
    return;
}