Error while compiling generated java, how to proceed?

Compiling code. 0.19
Generating R file. 0.00
Compiling generated Java code. Error
B4A line: 3646
uu=Sform(a)
javac 1.6.0_23
src\Games\Name\main.java:954: ';' expected
_ax = (int)((_px[_a])/(double)4)} //BA.debugLineNum = 3646;BA.debugLine="uu=Sform(a)";
^
1 error

My mistake, I found a typing error. However, it would be good to know why this error was reported by javac and not by B4A IDE?

You would need to tell us what the typing error was.