Example usage for java.util EmptyStackException EmptyStackException

Introduction

In this page you can find the example usage for java.util EmptyStackException EmptyStackException.

Prototype

public EmptyStackException() 

Source Link

Document

Constructs a new EmptyStackException with null as its error message string.

Usage

From source file:ArrayStack.java

/**
 * Pops the top item off of this stack and return it.
 *
 * @return the top item on the stack//  w w w . j ava 2  s .c o m
 * @throws EmptyStackException  if the stack is empty
 */
public Object pop() throws EmptyStackException {
    int n = size();
    if (n <= 0) {
        throw new EmptyStackException();
    } else {
        return remove(n - 1);
    }
}

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From source file:de.micromata.genome.gwiki.page.gspt.StandAlonePageContext.java

@Override
public JspWriter popBody() {
    if (topOfWriterStack == null) {
        throw new EmptyStackException();
    }/*w  w w  .  j a  va 2 s. c o  m*/
    JspWriter parent = topOfWriterStack.getEnclosingWriter();
    if (parent instanceof BodyContent) {
        topOfWriterStack = (BodyContent) parent;
    }
    return parent;
}

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From source file:de.micromata.genome.gwiki.page.gspt.ServletStandalonePageContext.java

@Override
public JspWriter popBody() {
    if (topOfWriterStack == null) {
        throw new EmptyStackException();
    }/*from   w ww.  jav  a 2 s. c  o m*/

    JspWriter parent = topOfWriterStack.getEnclosingWriter();
    if (parent instanceof BodyContent) {
        topOfWriterStack = (BodyContent) parent;
    } else {
        topOfWriterStack = null;
    }
    return parent;
}

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From source file:org.auraframework.integration.test.service.ServerServiceImplTest.java

/**
 * Verifies first exception within handleServletException is caught and processed
 * we throw 'EmptyStackException' when getting InstanceStack, then verify
 * exceptionAdapter.handleException(death) is called with it
 *///from  ww w. j  ava  2  s  . co  m
@Test
public void testHandleExceptionDeathCaught() throws Exception {
    PrintWriter writer = mock(PrintWriter.class);
    HttpServletRequest mockRequest = mock(HttpServletRequest.class);
    HttpServletResponse mockResponse = mock(HttpServletResponse.class);
    ContextService mockContextService = mock(ContextService.class);
    AuraContext mockContext = mock(AuraContext.class);
    ConfigAdapter mockConfigAdapter = mock(ConfigAdapter.class);
    ExceptionAdapter mockExceptionAdapter = mock(ExceptionAdapter.class);

    Throwable firstException = new EmptyStackException();

    Mockito.when(mockResponse.getWriter()).thenReturn(writer);
    Mockito.when(mockContext.getFormat()).thenReturn(AuraContext.Format.JSON);
    Mockito.when(mockContext.getMode()).thenReturn(Mode.PROD);
    Mockito.when(mockConfigAdapter.isProduction()).thenReturn(true);
    Mockito.when(mockContextService.getCurrentContext()).thenReturn(mockContext);
    Mockito.when(mockContext.getInstanceStack()).thenThrow(firstException);

    Throwable exception = new InterruptedException("opps");

    ServletUtilAdapterImpl adapter = new ServletUtilAdapterImpl();
    adapter.setContextService(mockContextService);
    adapter.setConfigAdapter(mockConfigAdapter);
    adapter.setExceptionAdapter(mockExceptionAdapter);
    adapter.handleServletException(exception, true, mockContext, mockRequest, mockResponse, true);

    ArgumentCaptor<Throwable> handledException = ArgumentCaptor.forClass(Throwable.class);
    Mockito.verify(mockExceptionAdapter, Mockito.times(1)).handleException(handledException.capture());

    assertTrue("Should handle EmptyStackException", handledException.getValue() instanceof EmptyStackException);

    Mockito.verify(mockResponse, atLeastOnce()).setStatus(HttpStatus.SC_INTERNAL_SERVER_ERROR);
    Mockito.verify(mockContextService, atLeastOnce()).endContext();
}

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From source file:org.auraframework.integration.test.service.ServerServiceImplTest.java

/**
 * Verifies second exception within handleServletException is caught and processed
 * we throw 'EmptyStackException' when getting InstanceStack, when
 * exceptionAdapter.handleException(death) handle the exception,
 * we throw second exception, then verify we printout the error message to response's writer
 *//*from  w  ww. jav  a 2 s .  c om*/
@Test
public void testHandleExceptionDoubleDeathCaught() throws Exception {
    PrintWriter writer = mock(PrintWriter.class);
    HttpServletRequest mockRequest = mock(HttpServletRequest.class);
    HttpServletResponse mockResponse = mock(HttpServletResponse.class);
    ContextService mockContextService = mock(ContextService.class);
    AuraContext mockContext = mock(AuraContext.class);
    ConfigAdapter mockConfigAdapter = mock(ConfigAdapter.class);
    ExceptionAdapter mockExceptionAdapter = mock(ExceptionAdapter.class);

    Throwable firstException = new EmptyStackException();
    String ccmeMsg = "double dead";
    Throwable secondException = new ConcurrentModificationException("double dead");

    Mockito.when(mockResponse.getWriter()).thenReturn(writer);
    Mockito.when(mockContext.getFormat()).thenReturn(AuraContext.Format.HTML);
    Mockito.when(mockContext.getMode()).thenReturn(Mode.DEV);
    Mockito.when(mockConfigAdapter.isProduction()).thenReturn(false);
    Mockito.when(mockContextService.getCurrentContext()).thenReturn(mockContext);
    Mockito.when(mockContext.getInstanceStack()).thenThrow(firstException);
    Mockito.when(mockExceptionAdapter.handleException(firstException)).thenThrow(secondException);

    Throwable exception = new InterruptedException("opps");

    ServletUtilAdapterImpl adapter = new ServletUtilAdapterImpl();
    adapter.setContextService(mockContextService);
    adapter.setConfigAdapter(mockConfigAdapter);
    adapter.setExceptionAdapter(mockExceptionAdapter);
    adapter.handleServletException(exception, true, mockContext, mockRequest, mockResponse, true);

    ArgumentCaptor<String> exceptionMessage = ArgumentCaptor.forClass(String.class);
    Mockito.verify(writer, Mockito.times(1)).println(exceptionMessage.capture());

    assertEquals(ccmeMsg, exceptionMessage.getValue());
    Mockito.verify(mockResponse, atLeastOnce()).setStatus(HttpStatus.SC_INTERNAL_SERVER_ERROR);
    Mockito.verify(mockContextService, atLeastOnce()).endContext();
}

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From source file:org.auraframework.impl.adapter.ServletUtilAdapterImplUnitTest.java

/**
 * Verifies first exception within handleServletException is caught and processed
 * we throw 'EmptyStackException' when getting InstanceStack, then verify
 * exceptionAdapter.handleException(death) is called with it
 *///from  w  w  w  .  j a  v a  2  s  . co m
@Test
public void testHandleExceptionDeathCaught() throws Exception {
    PrintWriter writer = Mockito.mock(PrintWriter.class);
    HttpServletRequest mockRequest = Mockito.mock(HttpServletRequest.class);
    HttpServletResponse mockResponse = Mockito.mock(HttpServletResponse.class);
    ContextService mockContextService = Mockito.mock(ContextService.class);
    AuraContext mockContext = Mockito.mock(AuraContext.class);
    ConfigAdapter mockConfigAdapter = Mockito.mock(ConfigAdapter.class);
    ExceptionAdapter mockExceptionAdapter = Mockito.mock(ExceptionAdapter.class);

    Throwable firstException = new EmptyStackException();

    Mockito.when(mockResponse.getWriter()).thenReturn(writer);
    Mockito.when(mockResponse.getStatus()).thenReturn(HttpStatus.SC_OK);
    Mockito.when(mockContext.getFormat()).thenReturn(AuraContext.Format.JSON);
    Mockito.when(mockContext.getMode()).thenReturn(Mode.PROD);
    Mockito.when(mockConfigAdapter.isProduction()).thenReturn(true);
    Mockito.when(mockContextService.getCurrentContext()).thenReturn(mockContext);
    Mockito.when(mockContext.getInstanceStack()).thenThrow(firstException);

    Throwable exception = new InterruptedException("opps");

    ServletUtilAdapterImpl adapter = Mockito.spy(new ServletUtilAdapterImpl());
    adapter.setContextService(mockContextService);
    adapter.setConfigAdapter(mockConfigAdapter);
    adapter.setExceptionAdapter(mockExceptionAdapter);
    adapter.handleServletException(exception, true, mockContext, mockRequest, mockResponse, true);

    ArgumentCaptor<Throwable> handledException = ArgumentCaptor.forClass(Throwable.class);
    Mockito.verify(mockExceptionAdapter, Mockito.times(2)).handleException(handledException.capture());

    assertTrue("Should handle EmptyStackException",
            handledException.getAllValues().get(1) instanceof EmptyStackException);

    Mockito.verify(mockResponse, Mockito.atLeastOnce()).setStatus(HttpStatus.SC_OK);
    Mockito.verify(mockContextService, Mockito.atLeastOnce()).endContext();
    Mockito.verify(adapter, Mockito.times(1)).setNoCache(mockResponse);
}

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From source file:org.auraframework.impl.adapter.ServletUtilAdapterImplUnitTest.java

/**
 * Verifies second exception within handleServletException is caught and processed
 * we throw 'EmptyStackException' when getting InstanceStack, when
 * exceptionAdapter.handleException(death) handle the exception,
 * we throw second exception, then verify we printout the error message to response's writer
 *//*from  w w  w .j  a  v a2s.c  om*/
@Test
public void testHandleExceptionDoubleDeathCaught() throws Exception {
    PrintWriter writer = Mockito.mock(PrintWriter.class);
    HttpServletRequest mockRequest = Mockito.mock(HttpServletRequest.class);
    HttpServletResponse mockResponse = Mockito.mock(HttpServletResponse.class);
    ContextService mockContextService = Mockito.mock(ContextService.class);
    AuraContext mockContext = Mockito.mock(AuraContext.class);
    ConfigAdapter mockConfigAdapter = Mockito.mock(ConfigAdapter.class);
    ExceptionAdapter mockExceptionAdapter = Mockito.mock(ExceptionAdapter.class);

    Throwable firstException = new EmptyStackException();
    String ccmeMsg = "double dead";
    Throwable secondException = new ConcurrentModificationException("double dead");

    Mockito.when(mockResponse.getWriter()).thenReturn(writer);
    Mockito.when(mockResponse.getStatus()).thenReturn(HttpStatus.SC_OK);
    Mockito.when(mockContext.getFormat()).thenReturn(AuraContext.Format.HTML);
    Mockito.when(mockContext.getMode()).thenReturn(Mode.DEV);
    Mockito.when(mockConfigAdapter.isProduction()).thenReturn(false);
    Mockito.when(mockContextService.getCurrentContext()).thenReturn(mockContext);
    Mockito.when(mockContext.getInstanceStack()).thenThrow(firstException);
    Mockito.when(mockExceptionAdapter.handleException(firstException)).thenThrow(secondException);

    Throwable exception = new InterruptedException("opps");

    ServletUtilAdapterImpl adapter = Mockito.spy(new ServletUtilAdapterImpl());
    adapter.setContextService(mockContextService);
    adapter.setConfigAdapter(mockConfigAdapter);
    adapter.setExceptionAdapter(mockExceptionAdapter);
    adapter.handleServletException(exception, true, mockContext, mockRequest, mockResponse, true);

    ArgumentCaptor<String> exceptionMessage = ArgumentCaptor.forClass(String.class);
    Mockito.verify(writer, Mockito.times(1)).println(exceptionMessage.capture());

    assertEquals(ccmeMsg, exceptionMessage.getValue());
    // in this case we return SC_OK, and we set non-cacheable.
    Mockito.verify(mockResponse, Mockito.atLeastOnce()).setStatus(HttpStatus.SC_OK);
    Mockito.verify(mockContextService, Mockito.atLeastOnce()).endContext();
    Mockito.verify(adapter, Mockito.atLeastOnce()).setNoCache(mockResponse);
}

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From source file:org.apache.tomcat.util.digester.Digester.java

/**
 * <p>Pops (gets and removes) the top object from the stack with the given name.</p>
 *
 * <p><strong>Note:</strong> a stack is considered empty
 * if no objects have been pushed onto it yet.</p>
 * //from  w ww .j a v a 2s  .  com
 * @param stackName the name of the stack from which the top value is to be popped
 * @return the top <code>Object</code> on the stack or or null if the stack is either 
 * empty or has not been created yet
 * @throws EmptyStackException if the named stack is empty
 *
 * @since 1.6
 */
public Object pop(String stackName) {
    Object result = null;
    ArrayStack namedStack = (ArrayStack) stacksByName.get(stackName);
    if (namedStack == null) {
        if (log.isDebugEnabled()) {
            log.debug("Stack '" + stackName + "' is empty");
        }
        throw new EmptyStackException();

    } else {

        result = namedStack.pop();
    }
    return result;
}

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From source file:org.apache.tomcat.util.digester.Digester.java

/**
 * <p>Gets the top object from the stack with the given name.
 * This method does not remove the object from the stack.
 * </p>//from ww  w .  ja v  a  2  s  .c  o  m
 * <p><strong>Note:</strong> a stack is considered empty
 * if no objects have been pushed onto it yet.</p>
 *
 * @param stackName the name of the stack to be peeked
 * @return the top <code>Object</code> on the stack or null if the stack is either 
 * empty or has not been created yet
 * @throws EmptyStackException if the named stack is empty 
 *
 * @since 1.6
 */
public Object peek(String stackName) {
    Object result = null;
    ArrayStack namedStack = (ArrayStack) stacksByName.get(stackName);
    if (namedStack == null) {
        if (log.isDebugEnabled()) {
            log.debug("Stack '" + stackName + "' is empty");
        }
        throw new EmptyStackException();

    } else {

        result = namedStack.peek();
    }
    return result;
}

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From source file:org.polymap.core.runtime.MapBlockingQueue.java

public T remove() {
    T result = poll();
    if (result == null) {
        throw new EmptyStackException();
    }
    return result;
}

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