diff -r 000000000000 -r 959103a6100f test/tools/javac/T7093325.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/T7093325.java Wed Apr 27 01:34:52 2016 +0800 @@ -0,0 +1,269 @@ +/* + * Copyright (c) 2011, 2013, 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 + * @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; + } + } + +}