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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Test exception throwing.
*/
public class Throw {
public void throwNullPointerException() {
throw new NullPointerException("npe!");
}
public void throwArithmeticException() {
throw new ArithmeticException();
}
public void one() {
System.out.println("Throw.one");
try {
throwNullPointerException();
assert(false);
} catch (Exception ex) {
// good
return;
}
assert(false);
}
public void twoA() {
System.out.println("Throw.twoA");
boolean gotN = false;
boolean gotA = false;
boolean gotWeird = false;
try {
try {
throwArithmeticException();
gotWeird = true;
} catch (ArithmeticException ae) {
gotA = true;
}
} catch (NullPointerException npe) {
gotN = true;
}
assert(gotA);
assert(!gotN);
assert(!gotWeird);
}
public void twoN() {
System.out.println("Throw.twoN");
boolean gotN = false;
boolean gotA = false;
boolean gotWeird = false;
try {
try {
throwNullPointerException();
gotWeird = true;
} catch (ArithmeticException ae) {
gotA = true;
}
} catch (NullPointerException npe) {
gotN = true;
}
assert(!gotA);
assert(gotN);
assert(!gotWeird);
}
public void rethrow() {
System.out.println("Throw.rethrow");
boolean caught = false;
boolean lly = false;
boolean second = false;
try {
try {
throwNullPointerException();
assert(false);
} catch (Exception ex) {
if (ex instanceof ArithmeticException) {
assert(false);
}
if (ex instanceof NullPointerException) {
caught = true;
throw (NullPointerException) ex;
}
} finally {
lly = true;
}
} catch (Exception ex) {
second = true;
}
assert(caught);
assert(lly);
assert(second);
}
public static void run() {
Throw th = new Throw();
th.one();
th.twoA();
th.twoN();
th.rethrow();
}
}
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