Example usage for java.lang.reflect Constructor setAccessible

Introduction

In this page you can find the example usage for java.lang.reflect Constructor setAccessible.

Prototype

@Override
@CallerSensitive
public void setAccessible(boolean flag)

Source Link

Document

A SecurityException is also thrown if this object is a Constructor object for the class Class and flag is true.

Usage

From source file:org.solenopsis.checkstyle.PackageObjectFactory.java

/**
 * Creates a new instance of a named class.
 * @param className the name of the class to instantiate.
 * @return the {@code Object} created by loader or null.
 *//*from   ww w  .  java  2s.  c o m*/
private Object createObject(String className) {
    Object instance = null;
    try {
        final Class<?> clazz = Class.forName(className, true, moduleClassLoader);
        final Constructor<?> declaredConstructor = clazz.getDeclaredConstructor();
        declaredConstructor.setAccessible(true);
        instance = declaredConstructor.newInstance();
    } catch (final ReflectiveOperationException | NoClassDefFoundError exception) {
        LOG.debug(IGNORING_EXCEPTION_MESSAGE, exception);
    }
    return instance;
}

From source file:org.springframework.data.neo4j.support.AbstractConstructorEntityInstantiator.java

protected <T> Constructor<T> getDeclaredConstructor(Class<T> c) {
    try {/*from   w  w  w  . j ava 2  s . com*/
        final Constructor<T> declaredConstructor = c.getDeclaredConstructor();
        declaredConstructor.setAccessible(true);
        return declaredConstructor;
    } catch (NoSuchMethodException e) {
        return null;
    }
}

From source file:com.aionlightning.commons.services.CronServiceTest.java

@BeforeClass
public void init() throws Exception {
    Constructor<CronService> constructor = CronService.class.getDeclaredConstructor();
    constructor.setAccessible(true);
    cronService = constructor.newInstance();
    cronService.init(CurrentThreadRunnableRunner.class);
}

From source file:com.puppycrawl.tools.checkstyle.PackageObjectFactory.java

/**
 * Creates a new instance of a named class.
 * @param className the name of the class to instantiate.
 * @return the {@code Object} created by loader.
 * @throws CheckstyleException if an error occurs.
 *///from   ww w  . ja va2s . com
private Object createObject(String className) throws CheckstyleException {
    try {
        final Class<?> clazz = Class.forName(className, true, moduleClassLoader);
        final Constructor<?> declaredConstructor = clazz.getDeclaredConstructor();
        declaredConstructor.setAccessible(true);
        return declaredConstructor.newInstance();
    } catch (final ReflectiveOperationException exception) {
        throw new CheckstyleException("Unable to find class for " + className, exception);
    }
}

From source file:com.buaa.cfs.fs.AbstractFileSystem.java

/**
 * Create an object for the given class and initialize it from conf.
 *
 * @param theClass class of which an object is created
 * @param conf     Configuration//from  www. ja v  a  2 s . co  m
 *
 * @return a new object
 */
@SuppressWarnings("unchecked")
static <T> T newInstance(Class<T> theClass, URI uri, Configuration conf) {
    T result;
    try {
        Constructor<T> meth = (Constructor<T>) CONSTRUCTOR_CACHE.get(theClass);
        if (meth == null) {
            meth = theClass.getDeclaredConstructor(URI_CONFIG_ARGS);
            meth.setAccessible(true);
            CONSTRUCTOR_CACHE.put(theClass, meth);
        }
        result = meth.newInstance(uri, conf);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return result;
}

From source file:org.nebula.framework.workflow.WorkflowInstance.java

private boolean createInstanceWithNoArgumentConstructor() {
    try {//from ww  w  .j  av  a2s . c om
        Constructor constructor = processDefinition.getWorkflowImplementation().getDeclaredConstructor();
        constructor.setAccessible(true);
        instance = constructor.newInstance();

        return true;
    } catch (Exception e) {
        log.error("Failed to create instance", e);
        throw new RuntimeException("Failed to create instance");
    }

}

From source file:org.onosproject.yang.compiler.utils.io.impl.YangIoUtilsTest.java

/**
 * A private constructor is tested.//from w  ww.j  a v  a 2 s .  co  m
 *
 * @throws SecurityException         if any security violation is observed
 * @throws NoSuchMethodException     if when the method is not found
 * @throws IllegalArgumentException  if there is illegal argument found
 * @throws InstantiationException    if instantiation is provoked for the private constructor
 * @throws IllegalAccessException    if instance is provoked or a method is provoked
 * @throws InvocationTargetException when an exception occurs by the method or constructor
 */
@Test
public void callPrivateConstructors() throws SecurityException, NoSuchMethodException, IllegalArgumentException,
        InstantiationException, IllegalAccessException, InvocationTargetException {

    Class<?>[] classesToConstruct = { YangIoUtils.class };
    for (Class<?> clazz : classesToConstruct) {
        Constructor<?> constructor = clazz.getDeclaredConstructor();
        constructor.setAccessible(true);
        assertThat(null, not(constructor.newInstance()));
    }
}

From source file:com.adaptris.util.TestURLString.java

private URLString newInstance() throws Exception {
    Constructor[] ctors = URLString.class.getDeclaredConstructors();
    Constructor ctor = noArg(ctors);
    ctor.setAccessible(true);
    return (URLString) ctor.newInstance();
}

From source file:com.glaf.core.util.ReflectUtils.java

public static Object newInstance(final Constructor<?> cstruct, final Object[] args) {
    boolean flag = cstruct.isAccessible();
    try {//from   ww w .  java2s.com
        cstruct.setAccessible(true);
        Object result = cstruct.newInstance(args);
        return result;
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        cstruct.setAccessible(flag);
    }
}

From source file:com.puppycrawl.tools.checkstyle.PackageNamesLoaderTest.java

@Test
@SuppressWarnings("unchecked")
public void testPackagesWithDots() throws Exception {

    Constructor<PackageNamesLoader> constructor = PackageNamesLoader.class.getDeclaredConstructor();
    constructor.setAccessible(true);
    PackageNamesLoader loader = constructor.newInstance();

    Attributes attributes = mock(Attributes.class);
    when(attributes.getValue("name")).thenReturn("coding.");
    loader.startElement("", "", "package", attributes);
    loader.endElement("", "", "package");

    Field field = PackageNamesLoader.class.getDeclaredField("packageNames");
    field.setAccessible(true);//from  w  ww.j a va 2  s  .c om
    Set<String> list = (Set<String>) field.get(loader);
    assertEquals("coding.", list.iterator().next());
}