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/langtools/jdk/jshell/SimpleRegressionTest.java
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test/langtools/jdk/jshell/SimpleRegressionTest.java
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/*
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* Copyright (c) 2015, 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.
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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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/*
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* @test 8130450 8158906 8154374 8166400 8171892 8173807 8173848 8282434
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* @summary simple regression test
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* @build KullaTesting TestingInputStream
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* @run junit SimpleRegressionTest
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*/
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import java.util.List;
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import javax.tools.Diagnostic;
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import jdk.jshell.Snippet;
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import jdk.jshell.VarSnippet;
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import jdk.jshell.SnippetEvent;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import static jdk.jshell.Snippet.Status.OVERWRITTEN;
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import static jdk.jshell.Snippet.SubKind.TEMP_VAR_EXPRESSION_SUBKIND;
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import static jdk.jshell.Snippet.Status.VALID;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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public class SimpleRegressionTest extends KullaTesting {
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@BeforeEach
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@Override
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public void setUp() {
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setUp(builder -> builder.executionEngine("local"));
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}
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@Test
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public void testSnippetMemberAssignment() {
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assertEval("class C { int y; }");
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assertEval("C c = new C();");
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assertVarKeyMatch("c.y = 4;", true, "$1", TEMP_VAR_EXPRESSION_SUBKIND, "int", added(VALID));
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}
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@Test
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public void testUserTakesTempVarName() {
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assertEval("int $2 = 4;");
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assertEval("String $1;");
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assertVarKeyMatch("1234;", true, "$3", TEMP_VAR_EXPRESSION_SUBKIND, "int", added(VALID));
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}
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@Test
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public void testCompileThrow() {
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assertEvalException("throw new Exception();");
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}
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@Test
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public void testMultiSnippetDependencies() {
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List<SnippetEvent> events = assertEval("int a = 3, b = a+a, c = b *100;",
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DiagCheck.DIAG_OK, DiagCheck.DIAG_OK,
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chain(added(VALID)),
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chain(added(VALID)),
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chain(added(VALID)));
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assertEquals("3", events.get(0).value());
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assertEquals("6", events.get(1).value());
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assertEquals("600", events.get(2).value());
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assertEval("c;", "600");
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}
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@Test
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public void testLessThanParsing() {
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assertEval("int x = 3;", "3");
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assertEval("int y = 4;", "4");
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assertEval("int z = 5;", "5");
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assertEval("x < y", "true");
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assertEval("x < y;", "true");
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assertEval("x < y && y < z", "true");
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}
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@Test
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public void testNotStmtCannotResolve() {
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assertDeclareFail("dfasder;", new ExpectedDiagnostic("compiler.err.cant.resolve.location", 0, 7, 0, -1, -1, Diagnostic.Kind.ERROR));
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}
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@Test
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public void testNotStmtIncomparable() {
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assertDeclareFail("true == 5.0;", new ExpectedDiagnostic("compiler.err.incomparable.types", 0, 11, 5, -1, -1, Diagnostic.Kind.ERROR));
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}
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@Test
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public void testStringAdd() {
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assertEval("String s = \"a\" + \"b\";", "\"ab\"");
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}
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@Test
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public void testExprSanity() {
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assertEval("int x = 3;", "3");
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assertEval("int y = 4;", "4");
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assertEval("x + y;", "7");
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assertActiveKeys();
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}
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@Test
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public void testGenericMethodCrash() {
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assertDeclareWarn1("<T> void f(T...a) {}", (ExpectedDiagnostic) null);
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Snippet sn = methodKey(assertEval("<R> R n(R x) { return x; }", added(VALID)));
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VarSnippet sne = varKey(assertEval("n(5)", added(VALID)));
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assertEquals("Integer", sne.typeName());
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}
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@Test
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public void testLongRemoteStrings() { //8158906
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assertEval("String m(int x) { byte[] b = new byte[x]; for (int i = 0; i < x; ++i) b[i] = (byte) 'a'; return new String(b); }");
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boolean[] shut = new boolean[1];
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getState().onShutdown(j -> {
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shut[0] = true;
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});
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for (String len : new String[]{"12345", "64000", "65535", "65536", "120000"}) {
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List<SnippetEvent> el = assertEval("m(" + len + ");");
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assertFalse(shut[0], "JShell died with long string");
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assertEquals(1, el.size(), "Excepted one event");
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assertTrue(el.get(0).value().length() > 10000,
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"Expected truncated but long String, got: " + el.get(0).value().length());
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}
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}
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@Test
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public void testLongRemoteJapaneseStrings() { //8158906
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assertEval("import java.util.stream.*;");
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assertEval("String m(int x) { return Stream.generate(() -> \"\u3042\").limit(x).collect(Collectors.joining()); }");
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boolean[] shut = new boolean[1];
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getState().onShutdown(j -> {
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shut[0] = true;
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});
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for (String len : new String[]{"12345", "21843", "21844", "21845", "21846", "64000", "65535", "65536", "120000"}) {
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List<SnippetEvent> el = assertEval("m(" + len + ");");
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assertFalse(shut[0], "JShell died with long string");
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assertEquals(1, el.size(), "Excepted one event");
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assertTrue(el.get(0).value().length() > 10000,
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"Expected truncated but long String, got: " + el.get(0).value().length());
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}
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}
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// 8130450
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@Test
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public void testDuplicate() {
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Snippet snm = methodKey(assertEval("void mm() {}", added(VALID)));
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assertEval("void mm() {}",
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ste(MAIN_SNIPPET, VALID, VALID, false, null),
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ste(snm, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
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Snippet snv = varKey(assertEval("boolean b;", added(VALID)));
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assertEval("boolean b;",
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ste(MAIN_SNIPPET, VALID, VALID, false, null),
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ste(snv, VALID, OVERWRITTEN, false, MAIN_SNIPPET));
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}
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@Test
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public void testContextClassLoader() {
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assertEval("class C {}");
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assertEval("C.class.getClassLoader() == Thread.currentThread().getContextClassLoader()", "true");
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}
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@Test
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public void testArrayRepresentation() {
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assertEval("new int[4]", "int[4] { 0, 0, 0, 0 }");
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assertEval("new int[0]", "int[0] { }");
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assertEval("new byte[2]", "byte[2] { 0, 0 }");
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assertEval("new short[] { 1234, 4321 }", "short[2] { 1234, 4321 }");
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assertEval("new long[] { 123456789 }", "long[1] { 123456789 }");
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assertEval("new float[] { -23.5645f, 1.0101f }", "float[2] { -23.5645, 1.0101 }");
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assertEval("new double[] { 1/8, Math.PI }", "double[2] { 0.0, 3.141592653589793 }");
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assertEval("new String[] { \"hi\", \"low\", null }", "String[3] { \"hi\", \"low\", null }");
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assertEval("new char[] { 'a', 34, 77 }", "char[3] { 'a', '\"', 'M' }");
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assertEval("new boolean[] { false, true }", "boolean[2] { false, true }");
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assertEval("new int[][] { new int[] {44, 55}, new int[] {88,99}}",
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"int[2][] { int[2] { 44, 55 }, int[2] { 88, 99 } }");
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assertEval("new Object[] { \"howdy\", new int[] { 33, 44, 55 }, new String[] { \"up\", \"down\" }}",
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"Object[3] { \"howdy\", int[3] { 33, 44, 55 }, String[2] { \"up\", \"down\" } }");
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}
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@Test
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public void testMultiDimArrayRepresentation() {
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assertEval("new int[3][1]",
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"int[3][] { int[1] { 0 }, int[1] { 0 }, int[1] { 0 } }");
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assertEval("new int[3][]",
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"int[3][] { null, null, null }");
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assertEval("new int[][] { new int[] {44}, new int[] {77, 88,99}}",
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"int[2][] { int[1] { 44 }, int[3] { 77, 88, 99 } }");
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assertEval("new String[3][1]",
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"String[3][] { String[1] { null }, String[1] { null }, String[1] { null } }");
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assertEval("class C { }");
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assertEval("new C[3][2]",
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"C[3][] { C[2] { null, null }, C[2] { null, null }, C[2] { null, null } }");
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assertEval("new boolean[2][1][3]",
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"boolean[2][][] { boolean[1][] { boolean[3] { false, false, false } }, boolean[1][] { boolean[3] { false, false, false } } }");
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}
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@Test
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public void testStringRepresentation() {
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assertEval("\"A!\\rB!\"",
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"\"A!\\rB!\"");
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assertEval("\"a\\bB\\tc\\nd\\fe\\rf\\\"g'\\\\h\"",
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"\"a\\bB\\tc\\nd\\fe\\rf\\\"g'\\\\h\"");
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assertEval("\"\\141\\10B\\11c\\nd\\fe\\15f\\42g\\'\\134h\"",
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"\"a\\bB\\tc\\nd\\fe\\rf\\\"g'\\\\h\"");
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assertEval("\"1234567890!@#$%^&*()-_=+qwertQWERT,./<>?;:[]{}\"",
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"\"1234567890!@#$%^&*()-_=+qwertQWERT,./<>?;:[]{}\"");
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assertEval("\"AA\\1\\7\\35\\25\"",
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"\"AA\\001\\007\\035\\025\"");
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assertEval("\"\"",
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"\"\"");
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assertEval("(String)null",
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"null");
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assertEval("\"\\u032Ea\"",
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"\"\\u032Ea\"");
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assertEval("\"a\\u032Ea\"",
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"\"a\u032Ea\"");
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}
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@Test
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public void testCharRepresentation() {
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for (String s : new String[]{"'A'", "'Z'", "'0'", "'9'",
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"'a'", "'z'", "'*'", "'%'",
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"'\\b'", "'\\t'", "'\\n'", "'\\f'", "'\\r'",
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"'\"'", "'\\\''", "'\\\\'", "'\\007'", "'\\034'",}) {
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assertEval(s, s);
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}
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assertEval("'\\3'",
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"'\\003'");
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assertEval("'\\u001D'",
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"'\\035'");
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assertEval("\"a\\bb\\tc\\nd\\fe\\rf\\\"g'\\\\h\".charAt(1)",
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"'\\b'");
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assertEval("\"\\u032E\".charAt(0)",
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"'\\u032E'");
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}
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}
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