diff -r 4ebc2e2fb97c -r 71c04702a3d5 test/langtools/tools/javac/T7093325.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/langtools/tools/javac/T7093325.java Tue Sep 12 19:03:39 2017 +0200 @@ -0,0 +1,220 @@ +/* + * 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.code + * jdk.compiler/com.sun.tools.javac.comp + * jdk.compiler/com.sun.tools.javac.main + * jdk.compiler/com.sun.tools.javac.tree + * 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 { + + 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() + .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 { + verifyBytecode(newCompilationTask() + .withSourceFromTemplate(source_template) + .generate()); + } + + void verifyBytecode(Result> 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 {}"; +}