undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/setup_aot/TestSetupAOT.java
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test/setup_aot/TestSetupAOT.java
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/*
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* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.PrintStream;
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import java.nio.charset.StandardCharsets;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Locale;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.spi.ToolProvider;
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import java.util.stream.Stream;
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import static java.util.stream.Collectors.*;
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// This program is executed by make/RunTests.gmk to support running HotSpot tests
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// in the "AOT mode", for example:
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//
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// make test JTREG=AOT_JDK=onestep TEST=open/test/hotspot/jtreg/runtime/invokedynamic
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// make test JTREG=AOT_JDK=twostep TEST=open/test/hotspot/jtreg/runtime/invokedynamic
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//
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// The onestep and twostep options specify whether the AOT cache is created with
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// a single JVM command (java -XX:AOTMode=record -XX:AOTCacheOutput=jdk.aotcache ...) or
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// two JVM commands (java -XX:AOTMode=record ...; java -XX:AOTMode=create -XX:AOTCache=jdk.aotcache ...)
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//
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// All JDK classes touched by this program will be stored into a customized AOT cache.
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// This is a larger set of classes than those stored in the JDK's default CDS archive.
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// This customized cache can also have additional optimizations that are not
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// enabled in the default CDS archive. For example, AOT-linked classes and lambda
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// expressions. In the future, it can also contain AOT profiles and AOT compiled methods.
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//
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// We can use this customized AOT cache to run various HotSpot tests to improve
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// coverage on AOT.
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//
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// Note that make/RunTests.gmk loads this class using an implicit classpath of ".", so
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// this class will be excluded from the customized AOT cache. As a result,
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// the customized AOT cache contains *only* classes from the JDK itself.
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public class TestSetupAOT {
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private static final Logger LOGGER = Logger.getLogger("Hello");
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public static void main(String[] args) throws Throwable {
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runJDKTools(args);
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invokedynamicTests(args);
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LOGGER.log(Level.FINE, "Done");
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}
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static class ToolOutput {
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ByteArrayOutputStream baos;
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PrintStream ps;
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String output;
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ToolOutput() throws Exception {
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baos = new ByteArrayOutputStream();
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ps = new PrintStream(baos, true, StandardCharsets.UTF_8.name());
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}
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void finish() throws Exception {
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output = baos.toString(StandardCharsets.UTF_8.name());
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System.out.println(output);
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}
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ToolOutput shouldContain(String... substrings) {
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for (String s : substrings) {
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if (!output.contains(s)) {
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throw new RuntimeException("\"" + s + "\" missing from tool output");
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}
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}
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return this;
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}
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ToolOutput shouldMatch(String... regexps) {
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for (String regexp : regexps) {
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Pattern pattern = Pattern.compile(regexp, Pattern.MULTILINE);
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if (!pattern.matcher(output).find()) {
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throw new RuntimeException("Pattern \"" + regexp + "\" missing from tool output");
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}
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}
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return this;
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}
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}
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static void runJDKTools(String[] args) throws Throwable {
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String tmpDir = args[0];
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System.out.println("Working Directory = " + System.getProperty("user.dir"));
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System.out.println("Temp output dir = " + tmpDir);
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// ------------------------------
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// javac
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execTool("javac", "--help")
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.shouldContain("Usage: javac <options> <source files>");
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JavacBenchApp.main(new String[] {"5"});
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// ------------------------------
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// javap
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execTool("javap", "--help")
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.shouldContain("Show package/protected/public classes");
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execTool("javap", "-c", "-private", "-v", "-verify",
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"java.lang.System",
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"java/util/stream/IntStream",
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"jdk.internal.module.ModuleBootstrap")
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.shouldContain("Compiled from \"System.java\"",
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"public static java.io.Console console()");
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// ------------------------------
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// jlink
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String jlinkOutput = tmpDir + File.separator + "jlinkOutput";
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execTool("jlink", "--help")
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.shouldContain("Compress all resources in the output image");
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execTool("jlink", "--list-plugins")
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.shouldContain("List of available plugins",
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"--generate-cds-archive ");
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deleteAll(jlinkOutput);
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execTool("jlink", "--add-modules", "java.base", "--strip-debug", "--output", jlinkOutput);
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deleteAll(jlinkOutput);
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// ------------------------------
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// jar
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String jarOutput = tmpDir + File.separator + "tmp.jar";
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execTool("jar", "--help")
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.shouldContain("--main-class=CLASSNAME");
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deleteAll(jarOutput);
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execTool("jar", "cvf", jarOutput, "TestSetupAOT.class")
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.shouldContain("adding: TestSetupAOT.class");
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execTool("jar", "uvf", jarOutput, "TestSetupAOT.class")
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.shouldContain("adding: TestSetupAOT.class");
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execTool("jar", "tvf", jarOutput)
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.shouldContain("META-INF/MANIFEST.MF");
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execTool("jar", "--describe-module", "--file=" + jarOutput)
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.shouldMatch("Unable to derive module descriptor for: .*tmp.jar");
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deleteAll(jarOutput);
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// ------------------------------
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// jdeps
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execTool("jdeps", "--help")
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.shouldContain("--ignore-missing-deps");
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execTool("jdeps", "-v", "TestSetupAOT.class")
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.shouldContain("-> JavacBenchApp");
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}
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static void deleteAll(String f) {
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deleteAll(new File(f));
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}
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static void deleteAll(File f) {
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File[] files = f.listFiles();
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if (files != null) {
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for (File file : files) {
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deleteAll(file);
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}
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}
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System.out.println("Deleting: " + f);
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f.delete();
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}
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static ToolOutput execTool(String tool, String... args) throws Throwable {
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System.out.println("== Running tool ======================================================");
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System.out.print(tool);
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for (String s : args) {
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System.out.print(" " + s);
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}
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System.out.println();
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System.out.println("======================================================================");
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ToolOutput output = new ToolOutput();
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ToolProvider t = ToolProvider.findFirst(tool)
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.orElseThrow(() -> new RuntimeException(tool + " not found"));
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t.run(output.ps, output.ps, args);
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output.finish();
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return output;
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}
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// Run some operations with java.util.stream, lambda expressions and string concatenation. This
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// will lead to AOT resolution of invokedynamic call sites.
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static void invokedynamicTests(String args[]) {
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List<String> strings = Arrays.asList("Hello", "World!");
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String helloWorld = strings.parallelStream()
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.filter(s -> s.contains("o"))
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.map(s -> s.toLowerCase(Locale.ROOT))
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.collect(joining(","));
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Stream.of(helloWorld.split("([,x-z]{1,3})([\\s]*)"))
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.map(String::toString)
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.forEach(System.out::println);
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// Common concatenation patterns
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int i = args.length * 12357; // Seed with this so javac will not perform constant folding.
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String s = String.valueOf(i);
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String SS = s + s;
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String CS = "string" + s;
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String SC = s + "string";
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String SCS = s + "string" + s;
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String CSS = "string" + s + s;
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String CSC = "string" + s + "string";
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String SSC = s + s + "string";
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String CSCS = "string" + s + "string" + s;
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String SCSC = s + "string" + s + "string";
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String CSCSC = "string" + s + "string" + s + "string";
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String SCSCS = s + "string" + s + "string" + s;
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String SSCSS = s + s + "string" + s + s;
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String S5 = s + s + s + s + s;
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String S6 = s + s + s + s + s + s;
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String S7 = s + s + s + s + s + s + s;
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String S8 = s + s + s + s + s + s + s + s;
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String S9 = s + s + s + s + s + s + s + s + s;
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String S10 = s + s + s + s + s + s + s + s + s + s;
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String CI = "string" + i;
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String IC = i + "string";
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String SI = s + i;
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String IS = i + s;
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String CIS = "string" + i + s;
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String CSCI = "string" + s + "string" + i;
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String CIC = "string" + i + "string";
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String CICI = "string" + i + "string" + i;
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float f = 0.1f;
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String CF = "string" + f;
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String CFS = "string" + f + s;
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String CSCF = "string" + s + "string" + f;
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char c = 'a';
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String CC = "string" + c;
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String CCS = "string" + c + s;
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String CSCC = "string" + s + "string" + c;
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long l = i + 12345678;
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String CJ = "string" + l;
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String JC = l + "string";
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String CJC = "string" + l + "string";
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String CJCJ = "string" + l + "string" + l;
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String CJCJC = "string" + l + "string" + l + "string";
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double d = i / 2.0;
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String CD = "string" + d;
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String CDS = "string" + d + s;
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String CSCD = "string" + s + "string" + d;
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}
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}
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