Examples of java.util.LinkedList.removeFirst()

java.util.LinkedList.removeFirst()
Removes and returns the first element from this list. @return the first element from this list @throws NoSuchElementException if this list is empty

    private static Set getAllInterfaces(Class clazz) {
        Set allInterfaces = new LinkedHashSet();
        LinkedList stack = new LinkedList();
        stack.addAll(Arrays.asList(clazz.getInterfaces()));
        while (!stack.isEmpty()) {
            Class intf = (Class) stack.removeFirst();
            if (!allInterfaces.contains(intf)) {
                allInterfaces.add(intf);
                stack.addAll(Arrays.asList(intf.getInterfaces()));
            }
        }

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        LinkedList queue = new LinkedList();


        queue.add(obj.getClass());
        while (!queue.isEmpty())
        {
            Class  type     = (Class)queue.removeFirst();
            Method callback = (Method)_callbacks.get(type);


            if (callback != null)
            {
                try

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                throw new MissingDependencyException("Unable to download dependency "+artifact);
            }
            if(monitor != null) {
                monitor.setTotalBytes(-1); // Just to be sure
            }
            URL repository = (URL) list.removeFirst();
            URL url = artifact == null ? repository : getURL(artifact, repository);
            if (artifact != null)
                log.info("Attempting to download "+artifact+" from "+url);
            else
                log.info("Attempting to download "+url);

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    public void popPrefixMapping(String prefix) {
        LinkedList stack = (LinkedList) xmlPrefixMapper.get(prefix);
        if (stack == null || stack.size() == 0) {
            // XXX throw new Exception("XXX");
        }
        stack.removeFirst();
    }


    /*
     * Returns the URI to which the given prefix maps.
     *

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        // main subroutine
        InsnList newInstructions = new InsnList();
        List newTryCatchBlocks = new ArrayList();
        List newLocalVariables = new ArrayList();
        while (!worklist.isEmpty()) {
            Instantiation inst = (Instantiation) worklist.removeFirst();
            emitSubroutine(inst,
                    worklist,
                    newInstructions,
                    newTryCatchBlocks,
                    newLocalVariables);

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                throw new MissingDependencyException("Unable to download dependency "+artifact);
            }
            if(monitor != null) {
                monitor.setTotalBytes(-1); // Just to be sure
            }
            URL repository = (URL) list.removeFirst();
            URL url = artifact == null ? repository : getURL(artifact, repository);
            log.debug("Attempting to download "+artifact+" from "+url);
            in = connect(url, username, password, monitor);
            if(in != null) {
                return new OpenResult(artifact, in, monitor == null ? -1 : monitor.getTotalBytes());

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    public Object pop() {
        LinkedList linkedList = ((LinkedList) threadLocal.get());
        if (linkedList.isEmpty()) {
            return null;
        }
        return linkedList.removeFirst();
    }


    public Object peek() {
        LinkedList linkedList = ((LinkedList) threadLocal.get());
        if (linkedList.isEmpty()) {

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                throw new MissingDependencyException("Unable to download dependency "+artifact);
            }
            if(monitor != null) {
                monitor.setTotalBytes(-1); // Just to be sure
            }
            URL repository = (URL) list.removeFirst();
            URL url = artifact == null ? repository : getURL(artifact, repository);
            log.debug("Attempting to download "+artifact+" from "+url);
            in = connect(url, username, password, monitor);
            if(in != null) {
                return new OpenResult(artifact, in, monitor == null ? -1 : monitor.getTotalBytes());

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    private static Set getAllInterfaces(Class clazz) {
        Set allInterfaces = new LinkedHashSet();
        LinkedList stack = new LinkedList();
        stack.addAll(Arrays.asList(clazz.getInterfaces()));
        while (!stack.isEmpty()) {
            Class intf = (Class) stack.removeFirst();
            if (!allInterfaces.contains(intf)) {
                allInterfaces.add(intf);
                stack.addAll(Arrays.asList(intf.getInterfaces()));
            }
        }

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        classPath.clear();


        LinkedList locationStack = new LinkedList(urls);
        try {
            while (!locationStack.isEmpty()) {
                URL url = (URL) locationStack.removeFirst();


                // Skip any duplicate urls in the claspath
                if (classPath.containsKey(url)) {
                    continue;
                }

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