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/*
* Copyright (c) 2011, 2015, 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 7093325 8006694 8129962
* @summary Redundant entry in bytecode exception table
* temporarily workaround combo tests are causing time out in several platforms
* @library /tools/javac/lib
* @modules jdk.jdeps/com.sun.tools.classfile
* jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.file
* jdk.compiler/com.sun.tools.javac.util
* @build combo.ComboTestHelper
* @run main T7093325
*/
import java.io.IOException;
import java.io.InputStream;
import com.sun.tools.classfile.Attribute;
import com.sun.tools.classfile.ClassFile;
import com.sun.tools.classfile.Code_attribute;
import com.sun.tools.classfile.ConstantPoolException;
import com.sun.tools.classfile.Method;
import javax.tools.JavaFileObject;
import combo.ComboInstance;
import combo.ComboParameter;
import combo.ComboTask.Result;
import combo.ComboTestHelper;
public class T7093325 extends ComboInstance<T7093325> {
enum StatementKind implements ComboParameter {
NONE(null, false, false),
THROW("throw new RuntimeException();", false, false),
RETURN_NONEMPTY("System.out.println(); return;", true, false),
RETURN_EMPTY("return;", true, true),
APPLY("System.out.println();", true, false);
String stmt;
boolean canInline;
boolean empty;
StatementKind(String stmt, boolean canInline, boolean empty) {
this.stmt = stmt;
this.canInline = canInline;
this.empty = empty;
}
@Override
public String expand(String optParameter) {
return stmt;
}
}
enum CatchArity implements ComboParameter {
NONE(""),
ONE("catch (A a) { #{STMT[1]} }"),
TWO("catch (B b) { #{STMT[2]} }"),
THREE("catch (C c) { #{STMT[3]} }"),
FOUR("catch (D d) { #{STMT[4]} }");
String catchStr;
CatchArity(String catchStr) {
this.catchStr = catchStr;
}
@Override
public String expand(String optParameter) {
if (this.ordinal() == 0) {
return catchStr;
} else {
return CatchArity.values()[this.ordinal() - 1].expand(optParameter) +
catchStr;
}
}
}
public static void main(String... args) throws Exception {
new ComboTestHelper<T7093325>()
.withFilter(T7093325::testFilter)
.withDimension("CATCH", (x, ca) -> x.ca = ca, CatchArity.values())
.withArrayDimension("STMT", (x, stmt, idx) -> x.stmts[idx] = stmt, 5, StatementKind.values())
.run(T7093325::new);
}
/** instance decls **/
CatchArity ca;
StatementKind[] stmts = new StatementKind[5];
boolean testFilter() {
int lastPos = ca.ordinal() + 1;
for (int i = 0; i < stmts.length ; i++) {
boolean shouldBeSet = i < lastPos;
boolean isSet = stmts[i] != StatementKind.NONE;
if (shouldBeSet != isSet) {
return false;
}
}
return true;
}
@Override
public void doWork() throws IOException {
newCompilationTask()
.withSourceFromTemplate(source_template)
.generate(this::verifyBytecode);
}
void verifyBytecode(Result<Iterable<? extends JavaFileObject>> result) {
boolean lastInlined = false;
boolean hasCode = false;
int gapsCount = 0;
for (int i = 0; i < ca.ordinal() + 1 ; i++) {
lastInlined = stmts[i].canInline;
hasCode = hasCode || !stmts[i].empty;
if (lastInlined && hasCode) {
hasCode = false;
gapsCount++;
}
}
if (!lastInlined) {
gapsCount++;
}
try (InputStream is = result.get().iterator().next().openInputStream()) {
ClassFile cf = ClassFile.read(is);
if (cf == null) {
fail("Classfile not found: " + result.compilationInfo());
return;
}
Method test_method = null;
for (Method m : cf.methods) {
if (m.getName(cf.constant_pool).equals("test")) {
test_method = m;
break;
}
}
if (test_method == null) {
fail("Method test() not found in class Test" + result.compilationInfo());
return;
}
Code_attribute code = null;
for (Attribute a : test_method.attributes) {
if (a.getName(cf.constant_pool).equals(Attribute.Code)) {
code = (Code_attribute)a;
break;
}
}
if (code == null) {
fail("Code attribute not found in method test()");
return;
}
int actualGapsCount = 0;
for (int i = 0; i < code.exception_table_length ; i++) {
int catchType = code.exception_table[i].catch_type;
if (catchType == 0) { //any
actualGapsCount++;
}
}
if (actualGapsCount != gapsCount) {
fail("Bad exception table for test()\n" +
"expected gaps: " + gapsCount + "\n" +
"found gaps: " + actualGapsCount + "\n" +
result.compilationInfo());
return;
}
} catch (IOException | ConstantPoolException e) {
e.printStackTrace();
fail("error reading classfile: " + e);
}
}
static final String source_template =
"class Test {\n" +
" void test() {\n" +
" try { #{STMT[0]} } #{CATCH} finally { System.out.println(); }\n" +
" }\n" +
"}\n" +
"class A extends RuntimeException {} \n" +
"class B extends RuntimeException {} \n" +
"class C extends RuntimeException {} \n" +
"class D extends RuntimeException {} \n" +
"class E extends RuntimeException {}";
}
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