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/MethodParameters/ClassReaderTest/MethodParameterProcessor.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2017 Google Inc. 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 static java.util.stream.Collectors.joining;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Set;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ExecutableElement;
+import javax.lang.model.element.VariableElement;
+import javax.lang.model.element.TypeElement;
+
+@SupportedAnnotationTypes("MethodParameterProcessor.ParameterNames")
+public class MethodParameterProcessor extends JavacTestingAbstractProcessor {
+
+    @Retention(RetentionPolicy.RUNTIME)
+    @Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
+    @interface ParameterNames {
+        String[] value() default {};
+    }
+
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+        for (Element element : roundEnv.getElementsAnnotatedWith(ParameterNames.class)) {
+            ExecutableElement exec = (ExecutableElement)element;
+            String message = printNamesAndAnnotations(exec);
+            messager.printNote(message);
+        }
+        return false;
+    }
+
+    private String printNamesAndAnnotations(ExecutableElement exec) {
+        return String.format("%s.%s(%s)",
+                exec.getEnclosingElement(),
+                exec.getSimpleName(),
+                exec.getParameters().stream().map(this::printParameter).collect(joining(", ")));
+    }
+
+    private String printParameter(VariableElement param) {
+        return param.getAnnotationMirrors().stream().map(String::valueOf).collect(joining(" "))
+                + (param.getAnnotationMirrors().isEmpty() ? "" : " ")
+                + param.getSimpleName();
+    }
+}