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.

test/langtools/tools/javac/classfiles/attributes/LineNumberTable/T8050993.java

@@ -0,0 +1,55 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8050993
+ * @summary Verify that the condition in the conditional lexpression gets a LineNumberTable entry
+ * @compile -g T8050993.java
+ * @run main T8050993
+ */
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import java.lang.classfile.*;
+import java.lang.classfile.attribute.*;
+
+public class T8050993 {
+    public static void main(String[] args) throws IOException {
+        ClassModel someTestIn = ClassFile.of().parse(T8050993.class.getResourceAsStream("T8050993.class").readAllBytes());
+        Set<Integer> expectedLineNumbers = new HashSet<>(Arrays.asList(49, 50, 47, 48));
+        for (MethodModel m : someTestIn.methods()) {
+            if (m.methodName().equalsString("method")) {
+                CodeAttribute code_attribute = m.findAttribute(Attributes.code()).orElse(null);
+                assert code_attribute != null;
+                for (Attribute<?> at : code_attribute.attributes()) {
+                    if (Attributes.lineNumberTable().equals(at)) {
+                        assert at instanceof LineNumberTableAttribute;
+                        LineNumberTableAttribute att = (LineNumberTableAttribute) at;
+                        Set<Integer> actualLinesNumbers = Arrays.stream(att.lineNumbers().toArray(new LineNumberInfo[0]))
+                                .map(LineNumberInfo::lineNumber)
+                                .collect(Collectors.toSet());
+                        if (!Objects.equals(expectedLineNumbers, actualLinesNumbers)) {
+                            throw new AssertionError("Expected LineNumber entries not found;" +
+                                                     "actual=" + actualLinesNumbers + ";" +
+                                                     "expected=" + expectedLineNumbers);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    public static int field;
+
+    public static String method() {
+        String s =
+                field % 2 == 0 ?
+                "true" + field :
+                "false" + field;
+        return s;
+    }
+
+}