mcimadamore@1109: /*
vromero@1482:  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
mcimadamore@1109:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
mcimadamore@1109:  *
mcimadamore@1109:  * This code is free software; you can redistribute it and/or modify it
mcimadamore@1109:  * under the terms of the GNU General Public License version 2 only, as
mcimadamore@1109:  * published by the Free Software Foundation.
mcimadamore@1109:  *
mcimadamore@1109:  * This code is distributed in the hope that it will be useful, but WITHOUT
mcimadamore@1109:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
mcimadamore@1109:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
mcimadamore@1109:  * version 2 for more details (a copy is included in the LICENSE file that
mcimadamore@1109:  * accompanied this code).
mcimadamore@1109:  *
mcimadamore@1109:  * You should have received a copy of the GNU General Public License version
mcimadamore@1109:  * 2 along with this work; if not, write to the Free Software Foundation,
mcimadamore@1109:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
mcimadamore@1109:  *
mcimadamore@1109:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
mcimadamore@1109:  * or visit www.oracle.com if you need additional information or have any
mcimadamore@1109:  * questions.
mcimadamore@1109:  */
mcimadamore@1109: 
mcimadamore@1109: /*
mcimadamore@1109:  * @test
vromero@1520:  * @bug 7093325 8006694
mcimadamore@1109:  * @summary Redundant entry in bytecode exception table
vromero@1520:  *  temporarily workaround combo tests are causing time out in several platforms
vromero@1482:  * @library lib
vromero@1482:  * @build JavacTestingAbstractThreadedTest
vromero@1520:  * @run main/othervm T7093325
mcimadamore@1109:  */
mcimadamore@1109: 
vromero@1520: // use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047)
vromero@1520: // see JDK-8006746
vromero@1520: 
vromero@1482: import java.io.File;
vromero@1482: import java.net.URI;
vromero@1482: import java.util.Arrays;
vromero@1482: import javax.tools.JavaCompiler;
vromero@1482: import javax.tools.JavaFileObject;
vromero@1482: import javax.tools.SimpleJavaFileObject;
vromero@1482: import javax.tools.ToolProvider;
vromero@1482: 
mcimadamore@1109: import com.sun.source.util.JavacTask;
mcimadamore@1109: import com.sun.tools.classfile.Attribute;
mcimadamore@1109: import com.sun.tools.classfile.ClassFile;
mcimadamore@1109: import com.sun.tools.classfile.Code_attribute;
mcimadamore@1109: import com.sun.tools.classfile.ConstantPool.*;
mcimadamore@1109: import com.sun.tools.classfile.Method;
mcimadamore@1109: 
vromero@1482: public class T7093325
vromero@1482:     extends JavacTestingAbstractThreadedTest
vromero@1482:     implements Runnable {
mcimadamore@1109: 
mcimadamore@1109:     enum StatementKind {
mcimadamore@1109:         THROW("throw new RuntimeException();", false, false),
mcimadamore@1109:         RETURN_NONEMPTY("System.out.println(); return;", true, false),
mcimadamore@1109:         RETURN_EMPTY("return;", true, true),
mcimadamore@1109:         APPLY("System.out.println();", true, false);
mcimadamore@1109: 
mcimadamore@1109:         String stmt;
mcimadamore@1109:         boolean canInline;
mcimadamore@1109:         boolean empty;
mcimadamore@1109: 
mcimadamore@1109:         private StatementKind(String stmt, boolean canInline, boolean empty) {
mcimadamore@1109:             this.stmt = stmt;
mcimadamore@1109:             this.canInline = canInline;
mcimadamore@1109:             this.empty = empty;
mcimadamore@1109:         }
mcimadamore@1109:     }
mcimadamore@1109: 
mcimadamore@1109:     enum CatchArity {
mcimadamore@1109:         NONE(""),
mcimadamore@1109:         ONE("catch (A a) { #S1 }"),
mcimadamore@1109:         TWO("catch (B b) { #S2 }"),
mcimadamore@1109:         THREE("catch (C c) { #S3 }"),
mcimadamore@1109:         FOUR("catch (D d) { #S4 }");
mcimadamore@1109: 
mcimadamore@1109:         String catchStr;
mcimadamore@1109: 
mcimadamore@1109:         private CatchArity(String catchStr) {
mcimadamore@1109:             this.catchStr = catchStr;
mcimadamore@1109:         }
mcimadamore@1109: 
mcimadamore@1109:         String catchers() {
mcimadamore@1109:             if (this.ordinal() == 0) {
mcimadamore@1109:                 return catchStr;
mcimadamore@1109:             } else {
vromero@1482:                 return CatchArity.values()[this.ordinal() - 1].catchers() +
vromero@1482:                         catchStr;
mcimadamore@1109:             }
mcimadamore@1109:         }
mcimadamore@1109:     }
mcimadamore@1109: 
mcimadamore@1109:     public static void main(String... args) throws Exception {
mcimadamore@1109:         for (CatchArity ca : CatchArity.values()) {
mcimadamore@1109:             for (StatementKind stmt0 : StatementKind.values()) {
mcimadamore@1109:                 if (ca.ordinal() == 0) {
vromero@1482:                     pool.execute(new T7093325(ca, stmt0));
mcimadamore@1109:                     continue;
mcimadamore@1109:                 }
mcimadamore@1109:                 for (StatementKind stmt1 : StatementKind.values()) {
mcimadamore@1109:                     if (ca.ordinal() == 1) {
vromero@1482:                         pool.execute(new T7093325(ca, stmt0, stmt1));
mcimadamore@1109:                         continue;
mcimadamore@1109:                     }
mcimadamore@1109:                     for (StatementKind stmt2 : StatementKind.values()) {
mcimadamore@1109:                         if (ca.ordinal() == 2) {
vromero@1482:                             pool.execute(new T7093325(ca, stmt0, stmt1, stmt2));
mcimadamore@1109:                             continue;
mcimadamore@1109:                         }
mcimadamore@1109:                         for (StatementKind stmt3 : StatementKind.values()) {
mcimadamore@1109:                             if (ca.ordinal() == 3) {
vromero@1482:                                 pool.execute(
vromero@1482:                                     new T7093325(ca, stmt0, stmt1, stmt2, stmt3));
mcimadamore@1109:                                 continue;
mcimadamore@1109:                             }
mcimadamore@1109:                             for (StatementKind stmt4 : StatementKind.values()) {
mcimadamore@1109:                                 if (ca.ordinal() == 4) {
vromero@1482:                                     pool.execute(
vromero@1482:                                         new T7093325(ca, stmt0, stmt1,
vromero@1482:                                                      stmt2, stmt3, stmt4));
mcimadamore@1109:                                     continue;
mcimadamore@1109:                                 }
mcimadamore@1109:                                 for (StatementKind stmt5 : StatementKind.values()) {
vromero@1482:                                     pool.execute(
vromero@1482:                                         new T7093325(ca, stmt0, stmt1, stmt2,
vromero@1482:                                                      stmt3, stmt4, stmt5));
mcimadamore@1109:                                 }
mcimadamore@1109:                             }
mcimadamore@1109:                         }
mcimadamore@1109:                     }
mcimadamore@1109:                 }
mcimadamore@1109:             }
mcimadamore@1109:         }
mcimadamore@1109: 
vromero@1482:         checkAfterExec();
mcimadamore@1109:     }
mcimadamore@1109: 
mcimadamore@1109:     /** instance decls **/
mcimadamore@1109: 
mcimadamore@1109:     CatchArity ca;
mcimadamore@1109:     StatementKind[] stmts;
mcimadamore@1109: 
mcimadamore@1109:     public T7093325(CatchArity ca, StatementKind... stmts) {
mcimadamore@1109:         this.ca = ca;
mcimadamore@1109:         this.stmts = stmts;
mcimadamore@1109:     }
mcimadamore@1109: 
vromero@1482:     @Override
vromero@1482:     public void run() {
vromero@1482:         int id = checkCount.incrementAndGet();
mcimadamore@1109:         final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
vromero@1482:         JavaSource source = new JavaSource(id);
vromero@1482:         JavacTask ct = (JavacTask)tool.getTask(null, fm.get(), null,
mcimadamore@1109:                 null, null, Arrays.asList(source));
mcimadamore@1109:         ct.call();
vromero@1482:         verifyBytecode(source, id);
mcimadamore@1109:     }
mcimadamore@1109: 
vromero@1482:     void verifyBytecode(JavaSource source, int id) {
mcimadamore@1109:         boolean lastInlined = false;
mcimadamore@1109:         boolean hasCode = false;
mcimadamore@1109:         int gapsCount = 0;
mcimadamore@1109:         for (int i = 0; i < stmts.length ; i++) {
mcimadamore@1109:             lastInlined = stmts[i].canInline;
mcimadamore@1109:             hasCode = hasCode || !stmts[i].empty;
mcimadamore@1109:             if (lastInlined && hasCode) {
mcimadamore@1109:                 hasCode = false;
mcimadamore@1109:                 gapsCount++;
mcimadamore@1109:             }
mcimadamore@1109:         }
mcimadamore@1109:         if (!lastInlined) {
mcimadamore@1109:             gapsCount++;
mcimadamore@1109:         }
mcimadamore@1109: 
vromero@1482:         File compiledTest = new File(String.format("Test%s.class", id));
mcimadamore@1109:         try {
mcimadamore@1109:             ClassFile cf = ClassFile.read(compiledTest);
mcimadamore@1109:             if (cf == null) {
vromero@1482:                 throw new Error("Classfile not found: " +
vromero@1482:                                 compiledTest.getName());
mcimadamore@1109:             }
mcimadamore@1109: 
mcimadamore@1109:             Method test_method = null;
mcimadamore@1109:             for (Method m : cf.methods) {
mcimadamore@1109:                 if (m.getName(cf.constant_pool).equals("test")) {
mcimadamore@1109:                     test_method = m;
mcimadamore@1109:                     break;
mcimadamore@1109:                 }
mcimadamore@1109:             }
mcimadamore@1109: 
mcimadamore@1109:             if (test_method == null) {
mcimadamore@1109:                 throw new Error("Method test() not found in class Test");
mcimadamore@1109:             }
mcimadamore@1109: 
mcimadamore@1109:             Code_attribute code = null;
mcimadamore@1109:             for (Attribute a : test_method.attributes) {
mcimadamore@1109:                 if (a.getName(cf.constant_pool).equals(Attribute.Code)) {
mcimadamore@1109:                     code = (Code_attribute)a;
mcimadamore@1109:                     break;
mcimadamore@1109:                 }
mcimadamore@1109:             }
mcimadamore@1109: 
mcimadamore@1109:             if (code == null) {
mcimadamore@1109:                 throw new Error("Code attribute not found in method test()");
mcimadamore@1109:             }
mcimadamore@1109: 
mcimadamore@1109:             int actualGapsCount = 0;
mcimadamore@1109:             for (int i = 0; i < code.exception_table_langth ; i++) {
mcimadamore@1109:                 int catchType = code.exception_table[i].catch_type;
mcimadamore@1109:                 if (catchType == 0) { //any
mcimadamore@1109:                     actualGapsCount++;
mcimadamore@1109:                 }
mcimadamore@1109:             }
mcimadamore@1109: 
mcimadamore@1109:             if (actualGapsCount != gapsCount) {
mcimadamore@1109:                 throw new Error("Bad exception table for test()\n" +
mcimadamore@1109:                             "expected gaps: " + gapsCount + "\n" +
mcimadamore@1109:                             "found gaps: " + actualGapsCount + "\n" +
mcimadamore@1109:                             source);
mcimadamore@1109:             }
mcimadamore@1109:         } catch (Exception e) {
mcimadamore@1109:             e.printStackTrace();
mcimadamore@1109:             throw new Error("error reading " + compiledTest +": " + e);
mcimadamore@1109:         }
mcimadamore@1109: 
mcimadamore@1109:     }
mcimadamore@1109: 
mcimadamore@1109:     class JavaSource extends SimpleJavaFileObject {
mcimadamore@1109: 
mcimadamore@1109:         static final String source_template =
mcimadamore@1109:                 "class A extends RuntimeException {} \n" +
mcimadamore@1109:                 "class B extends RuntimeException {} \n" +
mcimadamore@1109:                 "class C extends RuntimeException {} \n" +
mcimadamore@1109:                 "class D extends RuntimeException {} \n" +
mcimadamore@1109:                 "class E extends RuntimeException {} \n" +
vromero@1482:                 "class Test#ID {\n" +
mcimadamore@1109:                 "   void test() {\n" +
mcimadamore@1109:                 "   try { #S0 } #C finally { System.out.println(); }\n" +
mcimadamore@1109:                 "   }\n" +
mcimadamore@1109:                 "}";
mcimadamore@1109: 
mcimadamore@1109:         String source;
mcimadamore@1109: 
vromero@1482:         public JavaSource(int id) {
vromero@1482:             super(URI.create(String.format("myfo:/Test%s.java", id)),
vromero@1482:                   JavaFileObject.Kind.SOURCE);
mcimadamore@1109:             source = source_template.replace("#C", ca.catchers());
mcimadamore@1109:             source = source.replace("#S0", stmts[0].stmt);
vromero@1482:             source = source.replace("#ID", String.valueOf(id));
mcimadamore@1109:             for (int i = 1; i < ca.ordinal() + 1; i++) {
mcimadamore@1109:                 source = source.replace("#S" + i, stmts[i].stmt);
mcimadamore@1109:             }
mcimadamore@1109:         }
mcimadamore@1109: 
mcimadamore@1109:         @Override
mcimadamore@1109:         public String toString() {
mcimadamore@1109:             return source;
mcimadamore@1109:         }
mcimadamore@1109: 
mcimadamore@1109:         @Override
mcimadamore@1109:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
mcimadamore@1109:             return source;
mcimadamore@1109:         }
mcimadamore@1109:     }
vromero@1482: 
mcimadamore@1109: }