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.

tests/support/AbstractTestNode.java

@@ -0,0 +1,53 @@
+package support;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * Concrete TarjanNode subclass for use in tests.
+ *
+ * Because GraphUtils.TarjanNode is an abstract class in an internal package
+ * (com.sun.tools.javac.util), tests that exercise GraphUtils.tarjan() directly
+ * must extend it. This class provides a minimal, concrete implementation.
+ *
+ * Usage (requires --add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED):
+ *
+ *   AbstractTestNode n = new AbstractTestNode("N0");
+ *   n.addDep(other);
+ *   GraphUtils.tarjan(List.of(n));
+ */
+public class AbstractTestNode
+        extends com.sun.tools.javac.util.GraphUtils.TarjanNode<String, AbstractTestNode> {
+
+    private final List<AbstractTestNode> deps = new ArrayList<>();
+
+    public AbstractTestNode(String label) {
+        super(label);
+    }
+
+    public void addDep(AbstractTestNode dep) {
+        deps.add(dep);
+    }
+
+    @Override
+    public Iterable<? extends AbstractTestNode> getAllDependencies() {
+        return deps;
+    }
+
+    @Override
+    public com.sun.tools.javac.util.GraphUtils.DependencyKind[] getSupportedDependencyKinds() {
+        return new com.sun.tools.javac.util.GraphUtils.DependencyKind[0];
+    }
+
+    @Override
+    public Collection<? extends AbstractTestNode> getDependenciesByKind(
+            com.sun.tools.javac.util.GraphUtils.DependencyKind dk) {
+        return List.of();
+    }
+
+    @Override
+    public String toString() {
+        return data;
+    }
+}