exception handling made more realistic - only swallow in Main

src/main/java/iterate/jz2011/codeinjection/aspectj/LoggingAspect.java

@@ -46,7 +46,7 @@ public Object interceptAndLog(ProceedingJoinPoint invocation) throws Throwable {
 				"THE INJECTED CODE SAYS: the method " +
 				invocation.getSignature().getName() + " failed for the input '" +
 				invocation.getArgs()[0] + "'. Original exception: " + e);
-			return null; // normally we would just rethrow it...
+			throw e;
 		}
 	}
 

src/main/java/iterate/jz2011/codeinjection/aspectj/Main.java

@@ -1,5 +1,6 @@
 package iterate.jz2011.codeinjection.aspectj;
 
+
 /**
  * Run the AspectJ example - inject logging of method arguments in the case of an exception to
  * a 3rd party class/method.
@@ -21,6 +22,8 @@ public static void main(String[] args) {
 
 			new TooQuiet3rdPartyClass().batchProcess(actualArgs);
 
+		} catch (Exception e) {
+			// ignore - already logged
 		} finally {
 			System.out.println("\n############### DONE with the AspectJ example ###############\n");
 		}

src/main/java/iterate/jz2011/codeinjection/aspectj/TooQuiet3rdPartyClass.java

@@ -12,12 +12,12 @@ public class TooQuiet3rdPartyClass {
 	 * during a single invocation of a higher-level public method
 	 * and failing for one of the input values.
 	 */
-	private void failingMethod(String someArgument) {
+	private void failingMethod(String someArgument) throws Exception {
 		if("failNow!".equalsIgnoreCase(someArgument))
-			throw new RuntimeException("I'm an evil method, I've failed and won't tell for what argument!");
+			throw new Exception("I'm an evil method, I've failed and won't tell for what argument!");
 	}
 
-	public void batchProcess(String[] batchToProcess) {
+	public void batchProcess(String[] batchToProcess) throws Exception {
 		for (String currentArgument : batchToProcess) {
 			this.failingMethod(currentArgument);
 		}