Java InstantiationException类代码示例

import java.lang.InstantiationException; //导入依赖的package包/类
/**
 * Runs the test using the specified harness.
 *
 * @param harness  the test harness (<code>null</code> not permitted).
 */
public void test(TestHarness harness)
{
    InstantiationException object1 = new InstantiationException();
    harness.check(object1 != null);
    harness.check(object1.toString(), "java.lang.InstantiationException");

    InstantiationException object2 = new InstantiationException("nothing happens");
    harness.check(object2 != null);
    harness.check(object2.toString(), "java.lang.InstantiationException: nothing happens");

    InstantiationException object3 = new InstantiationException(null);
    harness.check(object3 != null);
    harness.check(object3.toString(), "java.lang.InstantiationException");

}
 

import java.lang.InstantiationException; //导入依赖的package包/类
/**
 * Runs the test using the specified harness.
 *
 * @param harness  the test harness (<code>null</code> not permitted).
 */
public void test(TestHarness harness)
{
    // flag that is set when exception is caught
    boolean caught = false;
    try {
        throw new InstantiationException("InstantiationException");
    }
    catch (InstantiationException e) {
        // correct exception was caught
        caught = true;
    }
    harness.check(caught);
}
 

import java.lang.InstantiationException; //导入依赖的package包/类
@Test
public void mixinCreateTest3( ) throws ClassNotFoundException, NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException {
	Query query = new Query( )
		.setFirstRank( 0 )
		.setNofRanks( 20 )
		.addWeightingScheme(
			new WeightingScheme( "bm25" )
				.addParameter( "b", 0.77f )
				.addParameter( "k1", 2 )
				.addParameter( "avgdoclen", 11943 )
				.addParameter( "metadata_doclen", "doclen" )
				.addParameter( "match", "feat" ) )
		.addSummarizer(
			new SummarizerConfiguration( "docid", "attribute" )
				.addParameter( "name", "docid" ) )
		.addSummarizer(
			new SummarizerConfiguration( "attr1", "attribute" )
				.addParameter( "name", "attr1" ) )
		.addSummarizer(
			new SummarizerConfiguration( "doclen", "metadata" )
				.addParameter( "name", "doclen" ) )
		.defineFeature( "feat", "word", "aword0", 1.0f )
		.defineFeature( "feat", new Term( "word", "aword1" ), 1.0f )
		.defineFeature( "sel",
			new Term( "word", "aword1" ), 1.0f )
		.defineFeature( "sel",
			new Expression( "contains", 0, 0 )
				.addExpression( 
					new Expression( "contains", 0, 0 )
						.addTerm( "word", "aword0" )
						.addTerm( "word", "aword1" ) )
				.addTerm( "word", "aword2" ), 1.0f )					
		.addSelect( "sel" )
		// AND of OR-groups (CNF), first is a shortcut for a single and condition
		.addMetadataRestriction(
			new MetadataRestriction( MetadataCondition.COMPARE_GREATER_OR_EQUALS, "doclen", 2 )					
		)
		.addMetadataRestriction(
			new MetadataRestriction( )
				.addCondition( MetadataCondition.COMPARE_GREATER, "doclen", 3 )
				.addCondition( MetadataCondition.COMPARE_LESS_OR_EQUALS, "doclen", 100 )					
		);

		// long for:
		//    QueryResponse response = new QueryResponse( query );
		// in private static class in WebService:
		Class<?> queryRequestClazz = Class.forName( "net.strus.service.impl.ws.WebService$QueryRequest" );
		Constructor<?> constructor = queryRequestClazz.getDeclaredConstructor( Query.class );
		constructor.setAccessible( true );
		Object request = constructor.newInstance( query );
									
		LOGGER.fine( request.toString( ) );
}
 

import java.lang.InstantiationException; //导入依赖的package包/类
/**
    * Create a new SAX parser using the `org.xml.sax.parser' system property.
    *
    * <p>The named class must exist and must implement the
    * {@link org.xml.sax.Parser Parser} interface.</p>
    *
    * @exception java.lang.NullPointerException There is no value
    *            for the `org.xml.sax.parser' system property.
    * @exception java.lang.ClassNotFoundException The SAX parser
    *            class was not found (check your CLASSPATH).
    * @exception IllegalAccessException The SAX parser class was
    *            found, but you do not have permission to load
    *            it.
    * @exception InstantiationException The SAX parser class was
    *            found but could not be instantiated.
    * @exception java.lang.ClassCastException The SAX parser class
    *            was found and instantiated, but does not implement
    *            org.xml.sax.Parser.
    * @see #makeParser(java.lang.String)
    * @see org.xml.sax.Parser
    */
   public static Parser makeParser ()
throws ClassNotFoundException,
IllegalAccessException, 
InstantiationException,
NullPointerException,
ClassCastException
   {
String className = System.getProperty("org.xml.sax.parser");
if (className == null) {
    throw new NullPointerException("No value for sax.parser property");
} else {
    return makeParser(className);
}
   }