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Java example source code file (T7093325.java)
The T7093325.java Java example source code/* * 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; } } } Other Java examples (source code examples)Here is a short list of links related to this Java T7093325.java source code file: |
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