Catch.java

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 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
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package com.ibm.j9.jsr292;
import org.testng.annotations.Test;
import org.testng.AssertJUnit;
import static java.lang.invoke.MethodType.methodType;

import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;

public class Catch {

	static class FooException extends Exception {
		private static final long serialVersionUID = 1L; 
	};

	@Test(groups = { "level.extended" })
	public void testCatcher() throws Throwable {
        MethodHandle thrower = MethodHandles.foldArguments(
                MethodHandles.throwException(boolean.class, FooException.class),
                MethodHandles.lookup().findConstructor(FooException.class, methodType(void.class)));

                MethodHandle catcher = MethodHandles.dropArguments(MethodHandles.constant(boolean.class, true), 0, FooException.class);
                MethodHandle runCatcher = MethodHandles.catchException(thrower, FooException.class, catcher);
                boolean b = (boolean)runCatcher.invokeExact();
                AssertJUnit.assertTrue(b);
	}
}