A_in.java

public static Compiler getCompiler() {
	if (compiler == null) {
		CompilerOptions options = new CompilerOptions();
		options.handleImportProblemAsError(false);

		compiler = 
			new Compiler(
				null, 
				DefaultErrorHandlingPolicies.proceedWithAllProblems(), 
				options.getConfigurableOptions(Locale.getDefault()), 
				new ICompilerRequestor() {
					private CompilationResult compilationResult; // toto
					public void acceptResult(CompilationResult compilationResult) {
						this.compilationResult = compilationResult;
					}
					public CompilationResult retrieveCompilationResult() {
						return compilationResult;
					}
				}, 
				compilerProblemFactory);
	}
	return compiler;
}