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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/tools/javac/processing/filer/TestValidRelativeNames.java Normal file
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/*
* Copyright (c) 2010, 2021, 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 6999891
* @summary Test valid relative names for Filer.createResource and Filer.getResource
* @library /tools/javac/lib
* @modules java.compiler
* jdk.compiler
* @build JavacTestingAbstractProcessor
* @compile TestValidRelativeNames.java
* @compile/process -processor TestValidRelativeNames -Amode=create java.lang.Object
* @compile/process -processor TestValidRelativeNames -Amode=get java.lang.Object
*/
import java.io.*;
import java.util.*;
import javax.annotation.processing.*;
import javax.lang.model.*;
import javax.lang.model.element.*;
import javax.tools.Diagnostic;
import javax.tools.StandardLocation;
@SupportedOptions("mode")
public class TestValidRelativeNames extends JavacTestingAbstractProcessor {
enum Kind { READER_WRITER, INPUT_OUTPUT_STREAM };
static final String[] validRelativeNames = {
"foo", "foo.bar", ".foo", ".foo.bar", "foodir/bar", "foodir/.bar"
};
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
if (roundEnv.processingOver()) {
String mode = options.get("mode");
for (String relativeBase: validRelativeNames) {
for (Kind kind: Kind.values()) {
if (mode.equals("create"))
testCreate(relativeBase, kind);
else
testGet(relativeBase, kind);
}
}
}
return true;
}
void testCreate(String relativeBase, Kind kind) {
String relative = getRelative(relativeBase, kind);
System.out.println("test create relative path: " + relative + ", kind: " + kind);
try {
switch (kind) {
case READER_WRITER:
try (Writer writer = filer.createResource(
StandardLocation.CLASS_OUTPUT, "", relative).openWriter()) {
writer.write(relative);
}
break;
case INPUT_OUTPUT_STREAM:
try (OutputStream out = filer.createResource(
StandardLocation.CLASS_OUTPUT, "", relative).openOutputStream()) {
out.write(relative.getBytes());
}
break;
}
} catch (Exception e) {
messager.printError("relative path: " + relative + ", kind: " + kind +
", unexpected exception: " + e);
}
}
void testGet(String relativeBase, Kind kind) {
String relative = getRelative(relativeBase, kind);
System.out.println("test get relative path: " + relative + ", kind: " + kind);
try {
switch (kind) {
case READER_WRITER:
try (Reader reader = new BufferedReader(filer.getResource(
StandardLocation.CLASS_OUTPUT, "", relative).openReader(true))) {
StringBuilder sb = new StringBuilder();
char[] buf = new char[1024];
int n;
while ((n = reader.read(buf, 0, buf.length)) > 0)
sb.append(new String(buf, 0, n));
if (!sb.toString().equals(relative)) {
messager.printError("unexpected content: " + sb);
}
}
break;
case INPUT_OUTPUT_STREAM:
try (InputStream in = new DataInputStream(filer.getResource(
StandardLocation.CLASS_OUTPUT, "", relative).openInputStream())) {
StringBuilder sb = new StringBuilder();
byte[] buf = new byte[1024];
int n;
while ((n = in.read(buf, 0, buf.length)) > 0)
sb.append(new String(buf, 0, n));
if (!sb.toString().equals(relative)) {
messager.printError("unexpected content: " + sb);
}
}
break;
}
} catch (Exception e) {
messager.printError("relative path: " + relative + ", kind: " + kind +
", unexpected exception: " + e);
}
}
String getRelative(String relativeBase, Kind kind) {
String suffix = (kind == Kind.READER_WRITER ? "RW" : "IOS");
return relativeBase.replace("foo", "foo" + suffix);
}
}