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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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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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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/langtools/jdk/jshell/SnippetHighlightTest.java Normal file
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/*
* Copyright (c) 2022, 2026, 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 8274148 8301580 8359497 8374293
* @summary Check snippet highlighting
* @library /tools/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.jdeps/com.sun.tools.javap
* jdk.jshell/jdk.jshell:open
* @build toolbox.ToolBox toolbox.JarTask toolbox.JavacTask
* @build KullaTesting TestingInputStream Compiler
* @run junit SnippetHighlightTest
*/
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import jdk.jshell.SourceCodeAnalysis.Highlight;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
public class SnippetHighlightTest extends KullaTesting {
@Test
public void testMemberExpr() {
assertEval("@Deprecated class TestClass { }");
assertEval("class TestConstructor { @Deprecated TestConstructor() {} }");
assertEval("class TestMethod { @Deprecated void test() {} }");
assertHighlights("TestClass t", "Highlight[start=0, end=9, attributes=[DEPRECATED]]",
"Highlight[start=10, end=11, attributes=[DECLARATION]]");
assertHighlights("TestClass.class", "Highlight[start=0, end=9, attributes=[DEPRECATED]]",
"Highlight[start=10, end=15, attributes=[KEYWORD]]");
assertHighlights("new TestConstructor()", "Highlight[start=0, end=3, attributes=[KEYWORD]]",
"Highlight[start=4, end=19, attributes=[DEPRECATED]]");
assertHighlights("new TestMethod().test()", "Highlight[start=0, end=3, attributes=[KEYWORD]]",
"Highlight[start=17, end=21, attributes=[DEPRECATED]]");
assertHighlights("var v = 0;", "Highlight[start=0, end=3, attributes=[KEYWORD]]",
"Highlight[start=4, end=5, attributes=[DECLARATION]]");
assertHighlights("int i = switch (0) { case 0: yield 0;};",
"Highlight[start=0, end=3, attributes=[KEYWORD]]",
"Highlight[start=4, end=5, attributes=[DECLARATION]]",
"Highlight[start=8, end=14, attributes=[KEYWORD]]",
"Highlight[start=21, end=25, attributes=[KEYWORD]]",
"Highlight[start=29, end=34, attributes=[KEYWORD]]");
assertHighlights("sealed class C permits A {}",
"Highlight[start=0, end=6, attributes=[KEYWORD]]",
"Highlight[start=7, end=12, attributes=[KEYWORD]]",
"Highlight[start=13, end=14, attributes=[DECLARATION]]",
"Highlight[start=15, end=22, attributes=[KEYWORD]]");
assertHighlights("non-sealed class C extends A {}",
"Highlight[start=0, end=10, attributes=[KEYWORD]]",
"Highlight[start=11, end=16, attributes=[KEYWORD]]",
"Highlight[start=17, end=18, attributes=[DECLARATION]]",
"Highlight[start=19, end=26, attributes=[KEYWORD]]");
assertHighlights("interface I {}",
"Highlight[start=0, end=9, attributes=[KEYWORD]]",
"Highlight[start=10, end=11, attributes=[DECLARATION]]");
assertHighlights("@interface I {}",
"Highlight[start=1, end=10, attributes=[KEYWORD]]",
"Highlight[start=11, end=12, attributes=[DECLARATION]]");
assertHighlights("enum E {A, B;}",
"Highlight[start=0, end=4, attributes=[KEYWORD]]",
"Highlight[start=5, end=6, attributes=[DECLARATION]]",
"Highlight[start=8, end=9, attributes=[DECLARATION]]",
"Highlight[start=11, end=12, attributes=[DECLARATION]]");
assertHighlights("record R(int i) {}",
"Highlight[start=0, end=6, attributes=[KEYWORD]]",
"Highlight[start=7, end=8, attributes=[DECLARATION]]",
"Highlight[start=9, end=12, attributes=[KEYWORD]]",
"Highlight[start=13, end=14, attributes=[DECLARATION]]");
assertHighlights("void method() {}",
"Highlight[start=0, end=4, attributes=[KEYWORD]]",
"Highlight[start=5, end=11, attributes=[DECLARATION]]");
}
@Test
public void testClassErrorRecovery() { //JDK-8301580
assertHighlights("""
class C {
void m
{
return ;
}
}
""",
"Highlight[start=0, end=5, attributes=[KEYWORD]]",
"Highlight[start=6, end=7, attributes=[DECLARATION]]",
"Highlight[start=13, end=17, attributes=[KEYWORD]]",
"Highlight[start=32, end=38, attributes=[KEYWORD]]");
}
@Test
public void testNoCrashOnLexicalErrors() { //JDK-8359497
assertHighlights("""
"
""");
}
@Test // 8374293: The returned Highlights should not overlap
public void testHighlightsOverlap() {
assertHighlights("public void E test()", "Highlight[start=0, end=6, attributes=[KEYWORD]]",
"Highlight[start=7, end=11, attributes=[KEYWORD]]",
"Highlight[start=14, end=18, attributes=[DECLARATION]]");
}
private void assertHighlights(String code, String... expected) {
List<String> completions = computeHighlights(code);
assertEquals(Arrays.asList(expected), completions, "Input: " + code + ", " + completions.toString());
}
private List<String> computeHighlights(String code) {
waitIndexingFinished();
List<Highlight> highlights =
getAnalysis().highlights(code);
return highlights.stream()
.map(h -> h.toString())
.collect(Collectors.toList());
}
}