Desugared library: test create methods in Files
- Document differences to fix
- Fix Conversion of FileAttribute<Set<PosixPermission>>
Change-Id: I157ee87f459e32bea04ea2d420f751c47f8c0e3c
diff --git a/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriteDescription.java b/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriteDescription.java
index 089a293..b02dc00 100644
--- a/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriteDescription.java
+++ b/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriteDescription.java
@@ -28,24 +28,23 @@
"j$/nio/file/spi/FileTypeDetector",
"j$/nio/file/Path",
"j$/nio/file/WatchEvent",
- "j$/nio/file/OpenOption");
+ "j$/nio/file/OpenOption",
+ "j$/nio/file/attribute/FileAttribute");
- static Map<String, String> getJavaWrapConvertOwnerMap() {
- return computeConvertOwnerMap("$Wrapper");
- }
-
- static Map<String, String> getJ$WrapConvertOwnerMap() {
- return computeConvertOwnerMap("$VivifiedWrapper");
- }
-
- private static HashMap<String, String> computeConvertOwnerMap(String suffix) {
+ static Map<String, String> getWrapConvertOwnerMap() {
HashMap<String, String> map = new HashMap<>();
for (String theEnum : ENUM_WRAP_CONVERT_OWNER) {
map.put(theEnum, theEnum + "$EnumConversion");
+ map.put(withJavaPrefix(theEnum), theEnum + "$EnumConversion");
}
for (String owner : WRAP_CONVERT_OWNER) {
- map.put(owner, owner + suffix);
+ map.put(withJavaPrefix(owner), owner + "$Wrapper");
+ map.put(owner, owner + "$VivifiedWrapper");
}
return map;
}
+
+ private static String withJavaPrefix(String descriptor) {
+ return "java" + descriptor.substring(2);
+ }
}
diff --git a/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriter.java b/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriter.java
index 0848c09..95a5ecc 100644
--- a/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriter.java
+++ b/buildSrc/src/main/java/desugaredlibrary/CustomConversionAsmRewriter.java
@@ -39,10 +39,8 @@
}
private final CustomConversionVersion legacy;
- private final Map<String, String> javaWrapConvertOwnerMap =
- CustomConversionAsmRewriteDescription.getJavaWrapConvertOwnerMap();
- private final Map<String, String> j$WrapConvertOwnerMap =
- CustomConversionAsmRewriteDescription.getJ$WrapConvertOwnerMap();
+ private final Map<String, String> wrapConvertOwnerMap =
+ CustomConversionAsmRewriteDescription.getWrapConvertOwnerMap();
public static void generateJars(Path jar, Path outputDirectory) throws IOException {
for (CustomConversionVersion version : CustomConversionVersion.values()) {
@@ -148,30 +146,14 @@
private void convertInvoke(int opcode, String owner, String descriptor, boolean isInterface) {
String firstArg = extractFirstArg(descriptor);
- assert sameBaseName(firstArg, owner);
- if (!javaWrapConvertOwnerMap.containsKey(owner)
- || !j$WrapConvertOwnerMap.containsKey(owner)
+ if (!wrapConvertOwnerMap.containsKey(firstArg)
|| !(firstArg.startsWith("java") || firstArg.startsWith("j$"))) {
throw new RuntimeException(
"Cannot transform wrap_convert method for " + firstArg + " (owner: " + owner + ")");
}
- if (firstArg.startsWith("java")) {
- String newOwner = javaWrapConvertOwnerMap.get(owner);
- super.visitMethodInsn(opcode, newOwner, CONVERT, descriptor, isInterface);
- return;
- }
- assert firstArg.startsWith("j$");
- String newOwner = j$WrapConvertOwnerMap.get(owner);
+ String newOwner = wrapConvertOwnerMap.get(firstArg);
super.visitMethodInsn(opcode, newOwner, CONVERT, descriptor, isInterface);
}
- private boolean sameBaseName(String firstArg, String owner) {
- assert owner.startsWith("j$");
- if (firstArg.equals(owner)) {
- return true;
- }
- String javaName = owner.replace("j$", "java");
- return firstArg.equals(javaName);
- }
}
}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributeView.java b/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributeView.java
index 774cf2c..7d2612f 100644
--- a/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributeView.java
+++ b/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributeView.java
@@ -5,13 +5,4 @@
package j$.nio.file.attribute;
public class BasicFileAttributeView extends FileAttributeView {
- public static java.nio.file.attribute.BasicFileAttributeView wrap_convert(
- j$.nio.file.attribute.BasicFileAttributeView fileAttributeView) {
- return null;
- }
-
- public static j$.nio.file.attribute.BasicFileAttributeView wrap_convert(
- java.nio.file.attribute.BasicFileAttributeView fileAttributeView) {
- return null;
- }
}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributes.java b/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributes.java
index dd91a95..69b0ca6 100644
--- a/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributes.java
+++ b/src/library_desugar/java/j$/nio/file/attribute/BasicFileAttributes.java
@@ -5,13 +5,4 @@
package j$.nio.file.attribute;
public class BasicFileAttributes {
- public static java.nio.file.attribute.BasicFileAttributes wrap_convert(
- j$.nio.file.attribute.BasicFileAttributes fileAttributes) {
- return null;
- }
-
- public static j$.nio.file.attribute.BasicFileAttributes wrap_convert(
- java.nio.file.attribute.BasicFileAttributes fileAttributes) {
- return null;
- }
}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/FileAttribute.java b/src/library_desugar/java/j$/nio/file/attribute/FileAttribute.java
new file mode 100644
index 0000000..b971b05
--- /dev/null
+++ b/src/library_desugar/java/j$/nio/file/attribute/FileAttribute.java
@@ -0,0 +1,12 @@
+// Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package j$.nio.file.attribute;
+
+public interface FileAttribute<T> {
+
+ String name();
+
+ T value();
+}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/FileAttributeView.java b/src/library_desugar/java/j$/nio/file/attribute/FileAttributeView.java
index 34046eb3..df33474 100644
--- a/src/library_desugar/java/j$/nio/file/attribute/FileAttributeView.java
+++ b/src/library_desugar/java/j$/nio/file/attribute/FileAttributeView.java
@@ -5,13 +5,4 @@
package j$.nio.file.attribute;
public class FileAttributeView {
- public static java.nio.file.attribute.FileAttributeView wrap_convert(
- j$.nio.file.attribute.FileAttributeView fileAttributeView) {
- return null;
- }
-
- public static j$.nio.file.attribute.FileAttributeView wrap_convert(
- java.nio.file.attribute.FileAttributeView fileAttributeView) {
- return null;
- }
}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/FileAttributeWrapperMethods.java b/src/library_desugar/java/j$/nio/file/attribute/FileAttributeWrapperMethods.java
new file mode 100644
index 0000000..dfff944
--- /dev/null
+++ b/src/library_desugar/java/j$/nio/file/attribute/FileAttributeWrapperMethods.java
@@ -0,0 +1,18 @@
+// Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package j$.nio.file.attribute;
+
+public class FileAttributeWrapperMethods {
+
+ public static java.nio.file.attribute.FileAttribute wrap_convert(
+ j$.nio.file.attribute.FileAttribute fileAttribute) {
+ return null;
+ }
+
+ public static j$.nio.file.attribute.FileAttribute wrap_convert(
+ java.nio.file.attribute.FileAttribute fileAttribute) {
+ return null;
+ }
+}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/FileOwnerAttributeView.java b/src/library_desugar/java/j$/nio/file/attribute/FileOwnerAttributeView.java
index 34a637d..cbce1b4 100644
--- a/src/library_desugar/java/j$/nio/file/attribute/FileOwnerAttributeView.java
+++ b/src/library_desugar/java/j$/nio/file/attribute/FileOwnerAttributeView.java
@@ -5,13 +5,4 @@
package j$.nio.file.attribute;
public class FileOwnerAttributeView extends FileAttributeView {
- public static java.nio.file.attribute.FileOwnerAttributeView wrap_convert(
- j$.nio.file.attribute.FileOwnerAttributeView fileAttributeView) {
- return null;
- }
-
- public static j$.nio.file.attribute.FileOwnerAttributeView wrap_convert(
- java.nio.file.attribute.FileOwnerAttributeView fileAttributeView) {
- return null;
- }
}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributeView.java b/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributeView.java
index bb24cb7..04f4f04 100644
--- a/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributeView.java
+++ b/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributeView.java
@@ -5,13 +5,4 @@
package j$.nio.file.attribute;
public class PosixFileAttributeView extends FileAttributeView {
- public static java.nio.file.attribute.PosixFileAttributeView wrap_convert(
- j$.nio.file.attribute.PosixFileAttributeView fileAttributeView) {
- return null;
- }
-
- public static j$.nio.file.attribute.PosixFileAttributeView wrap_convert(
- java.nio.file.attribute.PosixFileAttributeView fileAttributeView) {
- return null;
- }
}
diff --git a/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributes.java b/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributes.java
index 5e61814..d6e9796 100644
--- a/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributes.java
+++ b/src/library_desugar/java/j$/nio/file/attribute/PosixFileAttributes.java
@@ -5,13 +5,4 @@
package j$.nio.file.attribute;
public class PosixFileAttributes extends BasicFileAttributes {
- public static java.nio.file.attribute.PosixFileAttributes wrap_convert(
- j$.nio.file.attribute.PosixFileAttributes fileAttributes) {
- return null;
- }
-
- public static j$.nio.file.attribute.PosixFileAttributes wrap_convert(
- java.nio.file.attribute.PosixFileAttributes fileAttributes) {
- return null;
- }
}
diff --git a/src/library_desugar/java/java/nio/file/attribute/FileAttributeConversions.java b/src/library_desugar/java/java/nio/file/attribute/FileAttributeConversions.java
index c895d52..18c575f 100644
--- a/src/library_desugar/java/java/nio/file/attribute/FileAttributeConversions.java
+++ b/src/library_desugar/java/java/nio/file/attribute/FileAttributeConversions.java
@@ -4,6 +4,10 @@
package java.nio.file.attribute;
+import java.nio.file.FileApiFlips;
+import java.util.Collections;
+import java.util.Set;
+
public class FileAttributeConversions {
public static java.nio.file.attribute.FileTime convert(j$.nio.file.attribute.FileTime fileTime) {
@@ -20,4 +24,58 @@
return j$.nio.file.attribute.FileTime.fromMillis(fileTime.toMillis());
}
+ /** A FileAttribute usually holds an immutable set of non-null posix permissions. */
+ public static java.nio.file.attribute.FileAttribute<?> convert(
+ j$.nio.file.attribute.FileAttribute<?> attribute) {
+ if (attribute == null) {
+ return null;
+ }
+ if (isPosixPermissionAttributes(attribute.value())) {
+ return new java.nio.file.attribute.FileAttribute<Object>() {
+ public String name() {
+ return "posix:permissions";
+ }
+
+ public Object value() {
+ return Collections.unmodifiableSet(
+ FileApiFlips.flipPosixPermissionSet((Set<?>) attribute.value()));
+ }
+ };
+ }
+ return j$.nio.file.attribute.FileAttributeWrapperMethods.wrap_convert(attribute);
+ }
+
+ public static j$.nio.file.attribute.FileAttribute<?> convert(
+ java.nio.file.attribute.FileAttribute<?> attribute) {
+ if (attribute == null) {
+ return null;
+ }
+ if (isPosixPermissionAttributes(attribute.value())) {
+ return new j$.nio.file.attribute.FileAttribute<Object>() {
+ public String name() {
+ return "posix:permissions";
+ }
+
+ public Object value() {
+ return Collections.unmodifiableSet(
+ FileApiFlips.flipPosixPermissionSet((Set<?>) attribute.value()));
+ }
+ };
+ }
+ return j$.nio.file.attribute.FileAttributeWrapperMethods.wrap_convert(attribute);
+ }
+
+ private static boolean isPosixPermissionAttributes(Object value) {
+ if (value instanceof java.util.Set) {
+ Set<?> set = (java.util.Set<?>) value;
+ if (!set.isEmpty()) {
+ Object guineaPig = set.iterator().next();
+ if (guineaPig instanceof java.nio.file.attribute.PosixFilePermission
+ || guineaPig instanceof j$.nio.file.attribute.PosixFilePermission) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
}
diff --git a/src/library_desugar/jdk11/desugar_jdk_libs_nio.json b/src/library_desugar/jdk11/desugar_jdk_libs_nio.json
index c102e5e..dff0eac 100644
--- a/src/library_desugar/jdk11/desugar_jdk_libs_nio.json
+++ b/src/library_desugar/jdk11/desugar_jdk_libs_nio.json
@@ -257,7 +257,6 @@
"java.nio.file.CopyOption",
"java.nio.file.StandardCopyOption",
"java.nio.file.attribute.GroupPrincipal",
- "java.nio.file.attribute.FileAttribute",
"java.nio.file.attribute.UserPrincipal",
"java.nio.file.FileStore",
"java.nio.file.attribute.FileStoreAttributeView",
@@ -265,6 +264,7 @@
"java.nio.file.attribute.BasicFileAttributes",
"java.nio.file.attribute.DosFileAttributes",
"java.nio.file.attribute.PosixFileAttributes",
+ "java.nio.file.attribute.FileAttribute",
"java.nio.file.attribute.FileAttributeView",
"java.nio.file.attribute.FileOwnerAttributeView",
"java.nio.file.attribute.DosFileAttributeView",
@@ -279,7 +279,8 @@
]
},
"custom_conversion": {
- "java.nio.file.attribute.FileTime": "java.nio.file.attribute.FileAttributeConversions"
+ "java.nio.file.attribute.FileTime": "java.nio.file.attribute.FileAttributeConversions",
+ "java.nio.file.attribute.FileAttribute": "java.nio.file.attribute.FileAttributeConversions"
}
},
{
diff --git a/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/humanspecification/HumanRewritingFlags.java b/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/humanspecification/HumanRewritingFlags.java
index 314d657..cae75f2 100644
--- a/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/humanspecification/HumanRewritingFlags.java
+++ b/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/humanspecification/HumanRewritingFlags.java
@@ -15,13 +15,11 @@
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
-import com.google.common.collect.Sets.SetView;
import java.util.Collections;
import java.util.HashMap;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.Set;
-import java.util.stream.Collectors;
public class HumanRewritingFlags {
@@ -510,7 +508,6 @@
}
public HumanRewritingFlags build() {
- validate();
return new HumanRewritingFlags(
ImmutableMap.copyOf(rewritePrefix),
ImmutableSet.copyOf(dontRewritePrefix),
@@ -533,19 +530,5 @@
ImmutableMap.copyOf(amendLibraryMethod),
ImmutableMap.copyOf(amendLibraryField));
}
-
- private void validate() {
- SetView<DexType> dups =
- Sets.intersection(customConversions.keySet(), wrapperConversions.keySet());
- if (!dups.isEmpty()) {
- throw reporter.fatalError(
- new StringDiagnostic(
- "Invalid desugared library configuration. "
- + "Duplicate types in custom conversions and wrapper conversions: "
- + String.join(
- ", ", dups.stream().map(DexType::toString).collect(Collectors.toSet())),
- origin));
- }
- }
}
}
diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/jdk11/FilesCreateTest.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/jdk11/FilesCreateTest.java
new file mode 100644
index 0000000..39d85b1
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/jdk11/FilesCreateTest.java
@@ -0,0 +1,203 @@
+// Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package com.android.tools.r8.desugar.desugaredlibrary.jdk11;
+
+import static com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification.DEFAULT_SPECIFICATIONS;
+import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.JDK11_PATH;
+
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestRuntime.CfVm;
+import com.android.tools.r8.ToolHelper.DexVm.Version;
+import com.android.tools.r8.desugar.desugaredlibrary.DesugaredLibraryTestBase;
+import com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification;
+import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification;
+import com.android.tools.r8.utils.StringUtils;
+import com.google.common.collect.ImmutableList;
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.LinkOption;
+import java.nio.file.Path;
+import java.nio.file.attribute.FileAttribute;
+import java.nio.file.attribute.PosixFilePermission;
+import java.nio.file.attribute.PosixFilePermissions;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Set;
+import org.junit.Assume;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+@RunWith(Parameterized.class)
+public class FilesCreateTest extends DesugaredLibraryTestBase {
+
+ private static final String EXPECTED_RESULT =
+ StringUtils.lines(
+ "ind3f class java.nio.file.NoSuchFileException",
+ "ind4f class java.nio.file.NoSuchFileException",
+ "ind5f class java.nio.file.NoSuchFileException",
+ "ind6f class java.nio.file.NoSuchFileException",
+ "true",
+ "true",
+ "notExisting1class java.nio.file.NoSuchFileException",
+ "false",
+ "false");
+ private static final String EXPECTED_RESULT_DESUGARING =
+ StringUtils.lines(
+ "ind5f class java.io.FileNotFoundException",
+ "ind6f class java.io.FileNotFoundException",
+ "true",
+ "true",
+ "notExisting1class java.io.IOException",
+ "false",
+ "true",
+ "ind4f/dir",
+ "ind4f",
+ "ind3f/dir",
+ "ind3f");
+ private static final String EXPECTED_FILES =
+ StringUtils.lines(
+ "ind2s/dir", "ind2s", "ind1s/dir", "ind1s", "f4.txt", "f3.txt", "dir2s", "dir1s");
+
+ private final TestParameters parameters;
+ private final LibraryDesugaringSpecification libraryDesugaringSpecification;
+ private final CompilationSpecification compilationSpecification;
+
+ @Parameters(name = "{0}, spec: {1}, {2}")
+ public static List<Object[]> data() {
+ return buildParameters(
+ // Skip Android 4.4.4 due to missing libjavacrypto.
+ getTestParameters()
+ .withCfRuntime(CfVm.JDK11)
+ .withDexRuntime(Version.V4_0_4)
+ .withDexRuntimesStartingFromIncluding(Version.V5_1_1)
+ .withAllApiLevels()
+ .build(),
+ ImmutableList.of(JDK11_PATH),
+ DEFAULT_SPECIFICATIONS);
+ }
+
+ public FilesCreateTest(
+ TestParameters parameters,
+ LibraryDesugaringSpecification libraryDesugaringSpecification,
+ CompilationSpecification compilationSpecification) {
+ this.parameters = parameters;
+ this.libraryDesugaringSpecification = libraryDesugaringSpecification;
+ this.compilationSpecification = compilationSpecification;
+ }
+
+ @Test
+ public void test() throws Throwable {
+ if (parameters.isCfRuntime()) {
+ // Reference runtime, we use Jdk 11 since this is Jdk 11 desugared library, not that Jdk 8
+ // behaves differently on this test.
+ Assume.assumeTrue(parameters.isCfRuntime(CfVm.JDK11));
+ testForJvm()
+ .addInnerClasses(getClass())
+ .run(parameters.getRuntime(), TestClass.class)
+ .assertSuccessWithOutput(getExpectedResult());
+ return;
+ }
+ Assume.assumeFalse(
+ "The command mkdir fails on Android 7.0, we need to investigate if this is an emulator"
+ + "issue or a real issue.",
+ parameters.getDexRuntimeVersion().equals(Version.V7_0_0));
+ testForDesugaredLibrary(parameters, libraryDesugaringSpecification, compilationSpecification)
+ .addInnerClasses(getClass())
+ .addKeepMainRule(TestClass.class)
+ .compile()
+ .withArt6Plus64BitsLib()
+ .run(parameters.getRuntime(), TestClass.class)
+ .assertSuccessWithOutput(getExpectedResult());
+ }
+
+ private String getExpectedResult() {
+ if (parameters.isCfRuntime()) {
+ return EXPECTED_RESULT + EXPECTED_FILES;
+ }
+ return (libraryDesugaringSpecification.usesPlatformFileSystem(parameters)
+ ? EXPECTED_RESULT
+ : EXPECTED_RESULT_DESUGARING)
+ // We cannot print on such devices due to conversions errors.
+ + ((libraryDesugaringSpecification.usesPlatformFileSystem(parameters)
+ && libraryDesugaringSpecification.hasNioFileDesugaring(parameters))
+ ? ""
+ : EXPECTED_FILES);
+ }
+
+ public static class TestClass {
+
+ public static void main(String[] args) throws Throwable {
+ Path root = Files.createTempDirectory("tmp_test");
+ Files.createDirectories(root.resolve("ind1s/dir"));
+ Files.createDirectories(root.resolve("ind2s/dir"), getFileAttribute());
+ try {
+ Files.createDirectory(root.resolve("ind3f/dir"));
+ } catch (Throwable t) {
+ System.out.println("ind3f " + t.getClass());
+ }
+ try {
+ Files.createDirectory(root.resolve("ind4f/dir"), getFileAttribute());
+ } catch (Throwable t) {
+ System.out.println("ind4f " + t.getClass());
+ }
+ Files.createDirectory(root.resolve("dir1s"));
+ Files.createDirectory(root.resolve("dir2s"), getFileAttribute());
+ try {
+ Files.createFile(root.resolve("ind5f/f.txt"));
+ } catch (Throwable t) {
+ System.out.println("ind5f " + t.getClass());
+ }
+ try {
+ Files.createFile(root.resolve("ind6f/f.txt"), getFileAttribute());
+ } catch (Throwable t) {
+ System.out.println("ind6f " + t.getClass());
+ }
+ Files.createFile(root.resolve("f1.txt"));
+ Files.createFile(root.resolve("f2.txt"), getFileAttribute());
+
+ System.out.println(Files.exists(root.resolve("f1.txt")));
+ System.out.println(Files.exists(root.resolve("f1.txt"), LinkOption.NOFOLLOW_LINKS));
+
+ Files.delete(root.resolve("f1.txt"));
+ try {
+ Files.delete(root.resolve("notExisting1.txt"));
+ } catch (Throwable t) {
+ System.out.println("notExisting1" + t.getClass());
+ }
+ Files.deleteIfExists(root.resolve("f2.txt"));
+ Files.deleteIfExists(root.resolve("notExisting2.txt"));
+
+ System.out.println(Files.exists(root.resolve("f1.txt")));
+ System.out.println(Files.exists(root.resolve("f1.txt"), LinkOption.NOFOLLOW_LINKS));
+
+ // Recreate for the final print.
+ Files.createFile(root.resolve("f3.txt"));
+ Files.createFile(root.resolve("f4.txt"), getFileAttribute());
+
+ // Clear the temp directory.
+ // We need to fix Files#walk on high Api levels.
+ try {
+ Files.walk(root)
+ .sorted(Comparator.reverseOrder())
+ .map(
+ f -> {
+ if (f != root) {
+ System.out.println(f.subpath(2, f.getNameCount()));
+ }
+ return f.toFile();
+ })
+ .forEach(File::delete);
+ } catch (Throwable t) {
+
+ }
+ }
+
+ public static FileAttribute<Set<PosixFilePermission>> getFileAttribute() {
+ return PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString("rwxr-xr-x"));
+ }
+ }
+}
