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/processing/8268575/Processor.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2021, 2024, 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.
+ */
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.io.Writer;
+import java.util.Set;
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ExecutableElement;
+import javax.lang.model.element.AnnotationMirror;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.element.VariableElement;
+import javax.tools.Diagnostic.Kind;
+import javax.tools.JavaFileObject;
+import java.util.List;
+
+@SupportedAnnotationTypes("*")
+public class Processor extends AbstractProcessor {
+
+  @Override
+  public SourceVersion getSupportedSourceVersion() {
+    return SourceVersion.latestSupported();
+  }
+
+  int round = 1;
+
+  @Override
+  public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+    processingEnv.getMessager().printNote("round " + round);
+    Element t = processingEnv.getElementUtils().getTypeElement("T8268575");
+    for (Element e : t.getEnclosedElements()) {
+      if (e instanceof ExecutableElement) {
+        for (VariableElement p : ((ExecutableElement) e).getParameters()) {
+            List<? extends AnnotationMirror> annos = p.getAnnotationMirrors();
+            if (annos.size() != 1) {
+                throw new RuntimeException("Missing annotation in round " + round);
+            }
+        }
+      }
+    }
+    if (round == 1) {
+      String name = "A";
+      try {
+        JavaFileObject jfo = processingEnv.getFiler().createSourceFile(name);
+        try (Writer w = jfo.openWriter()) {
+          w.write("@interface " + name + " {}");
+        }
+      } catch (IOException e) {
+        throw new UncheckedIOException(e);
+      }
+    }
+    round++;
+    return false;
+  }
+}