Exception transformation ------------------------ Key: LOGTOOL-101 URL: https://issues.jboss.org/browse/LOGTOOL-101 Project: Log Tool Issue Type: Feature Request Reporter: David Lloyd Assignee: James Perkins I'd like to be able to transform an exception message. What this means is, create a new exception, embed its message in my message, and copy its stack trace to mine. Something like this: {code} @Message(id = 1234, "Binding to %s failed") IOException bindFailed(SocketAddress bindAddress, @TransformException IOException cause) {code} This would yield a message like: "Binding to 1.2.3.4/1234 failed: Address already in use". Note the addition of the ": " and the source string. Note that I can almost do this now, except that there's no way to copy the exception stack: {code} @Message(id = 1234, "Binding to %s failed: %s") IOException bindFailed(SocketAddress bindAddress, IOException cause) {code} An alternative approach is to add an annotation for copying the stack trace: {code} @Message(id = 1234, "Binding to %s failed") IOException bindFailed(SocketAddress bindAddress, @CopyStackFrom IOException cause) {code} Note that in this case the original exception message is lost. The next variant would preserve the message: {code} @Message(id = 1234, "Binding to %s failed: %s") IOException bindFailed(SocketAddress bindAddress, IOException cause, @CopyStackFrom IOException cause2) {code} And now to eliminate the duplication: {code} @Message(id = 1234, "Binding to %s failed: %s") IOException bindFailed(SocketAddress bindAddress, @CopyStackFrom @Pos(2) IOException cause) {code} Note that I don't recall if @Pos is 1- or 0-based, so I guessed.