/*
* 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
* @summary Redundant entry in bytecode exception table
* temporarily workaround combo tests are causing time out in several platforms
* @library lib
* @modules jdk.jdeps/com.sun.tools.classfile
* @build JavacTestingAbstractThreadedTest
* @run main/othervm T7093325
*/
// use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047)
// see JDK-8006746
import java.io.File;
import java.net.URI;
import java.util.Arrays;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
import com.sun.source.util.JavacTask;
import com.sun.tools.classfile.Attribute;
import com.sun.tools.classfile.ClassFile;
import com.sun.tools.classfile.Code_attribute;
import com.sun.tools.classfile.ConstantPool.*;
import com.sun.tools.classfile.Method;
public class T7093325
extends JavacTestingAbstractThreadedTest
implements Runnable {
enum StatementKind {
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;
private StatementKind(String stmt, boolean canInline, boolean empty) {
this.stmt = stmt;
this.canInline = canInline;
this.empty = empty;
}
}
enum CatchArity {
NONE(""),
ONE("catch (A a) { #S1 }"),
TWO("catch (B b) { #S2 }"),
THREE("catch (C c) { #S3 }"),
FOUR("catch (D d) { #S4 }");
String catchStr;
private CatchArity(String catchStr) {
this.catchStr = catchStr;
}
String catchers() {
if (this.ordinal() == 0) {
return catchStr;
} else {
return CatchArity.values()[this.ordinal() - 1].catchers() +
catchStr;
}
}
}
public static void main(String... args) throws Exception {
for (CatchArity ca : CatchArity.values()) {
for (StatementKind stmt0 : StatementKind.values()) {
if (ca.ordinal() == 0) {
pool.execute(new T7093325(ca, stmt0));
continue;
}
for (StatementKind stmt1 : StatementKind.values()) {
if (ca.ordinal() == 1) {
pool.execute(new T7093325(ca, stmt0, stmt1));
continue;
}
for (StatementKind stmt2 : StatementKind.values()) {
if (ca.ordinal() == 2) {
pool.execute(new T7093325(ca, stmt0, stmt1, stmt2));
continue;
}
for (StatementKind stmt3 : StatementKind.values()) {
if (ca.ordinal() == 3) {
pool.execute(
new T7093325(ca, stmt0, stmt1, stmt2, stmt3));
continue;
}
for (StatementKind stmt4 : StatementKind.values()) {
if (ca.ordinal() == 4) {
pool.execute(
new T7093325(ca, stmt0, stmt1,
stmt2, stmt3, stmt4));
continue;
}
for (StatementKind stmt5 : StatementKind.values()) {
pool.execute(
new T7093325(ca, stmt0, stmt1, stmt2,
stmt3, stmt4, stmt5));
}
}
}
}
}
}
}
checkAfterExec();
}
/** instance decls **/
CatchArity ca;
StatementKind[] stmts;
public T7093325(CatchArity ca, StatementKind... stmts) {
this.ca = ca;
this.stmts = stmts;
}
@Override
public void run() {
int id = checkCount.incrementAndGet();
final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
JavaSource source = new JavaSource(id);
JavacTask ct = (JavacTask)tool.getTask(null, fm.get(), null,
null, null, Arrays.asList(source));
ct.call();
verifyBytecode(source, id);
}
void verifyBytecode(JavaSource source, int id) {
boolean lastInlined = false;
boolean hasCode = false;
int gapsCount = 0;
for (int i = 0; i < stmts.length ; i++) {
lastInlined = stmts[i].canInline;
hasCode = hasCode || !stmts[i].empty;
if (lastInlined && hasCode) {
hasCode = false;
gapsCount++;
}
}
if (!lastInlined) {
gapsCount++;
}
File compiledTest = new File(String.format("Test%s.class", id));
try {
ClassFile cf = ClassFile.read(compiledTest);
if (cf == null) {
throw new Error("Classfile not found: " +
compiledTest.getName());
}
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) {
throw new Error("Method test() not found in class Test");
}
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) {
throw new Error("Code attribute not found in method test()");
}
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) {
throw new Error("Bad exception table for test()\n" +
"expected gaps: " + gapsCount + "\n" +
"found gaps: " + actualGapsCount + "\n" +
source);
}
} catch (Exception e) {
e.printStackTrace();
throw new Error("error reading " + compiledTest +": " + e);
}
}
class JavaSource extends SimpleJavaFileObject {
static final String source_template =
"class A extends RuntimeException {} \n" +
"class B extends RuntimeException {} \n" +
"class C extends RuntimeException {} \n" +
"class D extends RuntimeException {} \n" +
"class E extends RuntimeException {} \n" +
"class Test#ID {\n" +
" void test() {\n" +
" try { #S0 } #C finally { System.out.println(); }\n" +
" }\n" +
"}";
String source;
public JavaSource(int id) {
super(URI.create(String.format("myfo:/Test%s.java", id)),
JavaFileObject.Kind.SOURCE);
source = source_template.replace("#C", ca.catchers());
source = source.replace("#S0", stmts[0].stmt);
source = source.replace("#ID", String.valueOf(id));
for (int i = 1; i < ca.ordinal() + 1; i++) {
source = source.replace("#S" + i, stmts[i].stmt);
}
}
@Override
public String toString() {
return source;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
}