String src = "a1=7;\na2=8;\na3=9;\na4=10;\na5=11;\na6=12;\na7=13;\na8=14;";
ExpressionCompiler c = new ExpressionCompiler(src);
ParserContext ctx = new ParserContext();
ctx.setSourceFile("mysource");
ctx.setDebugSymbols(true);
CompiledExpression compexpr = c.compile(ctx);
System.out.println(decompile(compexpr));
MVELRuntime.registerBreakpoint(ctx.getSourceFile(), 1);
MVELRuntime.registerBreakpoint(ctx.getSourceFile(), 3);