How to get the invoker name in EJB interceptor's lifecycle event method

I use Java EE 5. I wrote an interceptor for all EJBs with three methods for logging:

public class DefaultInterceptor {
    public static final String PREFIX = "!!!!!!!!!Interceptor:";

    public void postConstruct(InvocationContext ctx) {
        try {
            System.out.println(PREFIX + " postConstruct");
        } catch (Exception ex) {
            throw new RuntimeException(ex);

    public void preDestroy(InvocationContext ctx) {
        try {
            System.out.println(PREFIX + " predestroy");
            System.out.println(PREFIX + "ctx.preceed=" + ctx.proceed());
        } catch (Exception ex) {
            throw new RuntimeException(ex);

    public Object intercept(InvocationContext ctx) throws Exception {
        System.out.println(PREFIX + "method invocation '" + ctx.getMethod().getName() + "'");
        System.out.println(PREFIX + "parameters ='" + Arrays.deepToString(ctx.getParameters()) + "'");
        Object result = null;
        try {
            result = ctx.proceed();
            System.out.println(PREFIX + "Method result='" + result + "'");
            return result;
        } catch (Exception ex) {
            System.out.println(PREFIX + "Method exception ='" + ex.getMessage() + "'");
            throw ex;
        } finally {
            System.out.println(PREFIX + "Method finished");

I want to get the name of EJB which called this interceptor. How can I do it?

I tried ctx.getMethod().getDeclaringClass().getSimpleName() but ctx.getMethod() returns null in postConstruct(-) and predestroy(-) methods.


For lifecycle callbacks ctx.getMethod() returns null. This is documented for example here:

That is so, because it is not your EJB, but container who calls lifecycle callback methods.

If you are interested about association between interceptor and bean it belongs to, doesn't ctx.getTarget() method serve your purpose?

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