/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
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package org.springframework.remoting.support;

import java.util.HashSet;
import java.util.Set;

General utilities for handling remote invocations.

Mainly intended for use within the remoting framework.

Author:Juergen Hoeller
Since:2.0
/** * General utilities for handling remote invocations. * * <p>Mainly intended for use within the remoting framework. * * @author Juergen Hoeller * @since 2.0 */
public abstract class RemoteInvocationUtils {
Fill the current client-side stack trace into the given exception.

The given exception is typically thrown on the server and serialized as-is, with the client wanting it to contain the client-side portion of the stack trace as well. What we can do here is to update the StackTraceElement array with the current client-side stack trace, provided that we run on JDK 1.4+.

Params:
  • ex – the exception to update
See Also:
/** * Fill the current client-side stack trace into the given exception. * <p>The given exception is typically thrown on the server and serialized * as-is, with the client wanting it to contain the client-side portion * of the stack trace as well. What we can do here is to update the * {@code StackTraceElement} array with the current client-side stack * trace, provided that we run on JDK 1.4+. * @param ex the exception to update * @see Throwable#getStackTrace() * @see Throwable#setStackTrace(StackTraceElement[]) */
public static void fillInClientStackTraceIfPossible(Throwable ex) { if (ex != null) { StackTraceElement[] clientStack = new Throwable().getStackTrace(); Set<Throwable> visitedExceptions = new HashSet<>(); Throwable exToUpdate = ex; while (exToUpdate != null && !visitedExceptions.contains(exToUpdate)) { StackTraceElement[] serverStack = exToUpdate.getStackTrace(); StackTraceElement[] combinedStack = new StackTraceElement[serverStack.length + clientStack.length]; System.arraycopy(serverStack, 0, combinedStack, 0, serverStack.length); System.arraycopy(clientStack, 0, combinedStack, serverStack.length, clientStack.length); exToUpdate.setStackTrace(combinedStack); visitedExceptions.add(exToUpdate); exToUpdate = exToUpdate.getCause(); } } } }