8205626: Start of release updates for JDK 13
8205393: Add SourceVersion.RELEASE_13
8205394: Add source 13 and target 13 to javac
8205645: Bump maximum recognized class file version to 57 for JDK 13
8214825: Update preview language features for start of JDK 13
Reviewed-by: erikj, alanb, mchung, mcimadamore, dholmes, smarks, jjg
/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8214114
* @summary Verify try-catch inside a switch expression works properly.
* @compile --enable-preview -source 13 TryCatch.java
* @run main/othervm --enable-preview TryCatch
*/
public class TryCatch {
public static void main(String[] args) {
{
int val = 3;
for (int p : new int[] {0, 1, 2}) {
int res = 1 + new TryCatch().id(switch(p) {
case 0 -> switch (p + 1) {
case 1:
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
break val;
}
default: break -1;
};
case 1 -> {
try {
break new TryCatch().id(switch (p + 1) {
case 2:
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
throw ex;
}
default: break -1;
});
} catch(Throwable ex) {
break val;
}
}
default -> {
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
break val;
}
}
} - 1);
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
}
{
int val = 3;
for (int p : new int[] {0, 1, 2}) {
int x;
int res = new TryCatch().id(val == 3 && switch(p) {
case 0 -> switch (p + 1) {
case 1:
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
break true;
}
default: break false;
};
case 1 -> {
try {
break new TryCatch().id(switch (p + 1) {
case 2:
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
throw ex;
}
default: break false;
});
} catch(Throwable ex) {
break true;
}
}
default -> {
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
break true;
}
}
} && (x = 1) == 1 && x == 1 ? val : -1);
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
}
{
int val = 3;
for (E e : new E[] {E.A, E.B, E.C}) {
int res = 1 + new TryCatch().id(switch(e) {
case A -> switch (e.next()) {
case B:
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
break val;
}
default: break -1;
};
case B -> {
try {
break new TryCatch().id(switch (e.next()) {
case C:
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
throw ex;
}
default: break -1;
});
} catch(Throwable ex) {
break val;
}
}
default -> {
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
break val;
}
}
} - 1);
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
}
{
int val = 3;
for (E e : new E[] {E.A, E.B, E.C}) {
int x;
int res = new TryCatch().id(val == 3 && switch(e) {
case A -> switch (e.next()) {
case B:
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
break true;
}
default: break false;
};
case B -> {
try {
break new TryCatch().id(switch (e.next()) {
case C:
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
throw ex;
}
default: break false;
});
} catch(Throwable ex) {
break true;
}
}
default -> {
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
break true;
}
}
} && (x = 1) == 1 && x == 1 ? val : -1);
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
}
{
int val = 3;
for (String s : new String[] {"", "a", "b"}) {
int res = 1 + new TryCatch().id(switch(s) {
case "" -> switch (s + "c") {
case "c":
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
break val;
}
default: break -1;
};
case "a" -> {
try {
break new TryCatch().id(switch (s + "c") {
case "ac":
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
throw ex;
}
default: break -1;
});
} catch(Throwable ex) {
break val;
}
}
default -> {
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
break val;
}
}
} - 1);
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
}
{
int val = 3;
for (String s : new String[] {"", "a", "b"}) {
int x;
int res = new TryCatch().id(val == 3 && switch(s) {
case "" -> switch (s + "c") {
case "c":
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
break true;
}
default: break false;
};
case "a" -> {
try {
break new TryCatch().id(switch (s + "c") {
case "ac":
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
throw ex;
}
default: break false;
});
} catch(Throwable ex) {
break true;
}
}
default -> {
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
break true;
}
}
} && (x = 1) == 1 && x == 1 ? val : -1);
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
}
{
int res = new FieldHolder().intTest;
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
{
int res = FieldHolder.intStaticTest;
if (res != 3) {
throw new AssertionError("Unexpected result: " + res);
}
}
{
boolean res = new FieldHolder().booleanTest;
if (!res) {
throw new AssertionError("Unexpected result: " + res);
}
}
{
boolean res = FieldHolder.booleanStaticTest;
if (!res) {
throw new AssertionError("Unexpected result: " + res);
}
}
}
static class FieldHolder {
private final int intTest = switch (0) {
case -1: break -1;
default:
try {
break new TryCatch().id(switch (2) {
case 2:
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
throw ex;
}
default: break -1;
});
} catch(Throwable ex) {
break 3;
}
};
private static final int intStaticTest = switch (0) {
case -1: break -1;
default:
try {
break new TryCatch().id(switch (2) {
case 2:
try {
new TryCatch().throwException();
break -1;
} catch(Throwable ex) {
throw ex;
}
default: break -1;
});
} catch(Throwable ex) {
break 3;
}
};
private final boolean booleanTest = switch (0) {
case -1: break false;
default:
try {
break new TryCatch().id(switch (2) {
case 2:
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
throw ex;
}
default: break false;
});
} catch(Throwable ex) {
break true;
}
};
private static final boolean booleanStaticTest = switch (0) {
case -1: break false;
default:
try {
break new TryCatch().id(switch (2) {
case 2:
try {
new TryCatch().throwException();
break false;
} catch(Throwable ex) {
throw ex;
}
default: break false;
});
} catch(Throwable ex) {
break true;
}
};
}
private int id(int i) {
return i;
}
private boolean id(boolean b) {
return b;
}
private void throwException() {
throw new RuntimeException();
}
enum E {
A, B, C;
public E next() {
return values()[(ordinal() + 1) % values().length];
}
}
}