Merge

make/autoconf/libraries.m4

@@ -124,12 +124,18 @@ AC_DEFUN_ONCE([LIB_SETUP_LIBRARIES],
     BASIC_JVM_LIBS="$BASIC_JVM_LIBS -lpthread"
   fi
 
-  # Libatomic library
+  # Atomic library
-  # 32-bit MIPS needs fallback library for 8-byte atomic ops
+  # 32-bit platforms needs fallback library for 8-byte atomic ops on Zero
-  if test "x$OPENJDK_TARGET_OS" = xlinux &&
+  if HOTSPOT_CHECK_JVM_VARIANT(zero); then
-      (test "x$OPENJDK_TARGET_CPU" = xmips ||
+    if test "x$OPENJDK_TARGET_OS" = xlinux &&
-       test "x$OPENJDK_TARGET_CPU" = xmipsel); then
+        (test "x$OPENJDK_TARGET_CPU" = xarm ||
-    BASIC_JVM_LIBS="$BASIC_JVM_LIBS -latomic"
+         test "x$OPENJDK_TARGET_CPU" = xm68k ||
+         test "x$OPENJDK_TARGET_CPU" = xmips ||
+         test "x$OPENJDK_TARGET_CPU" = xmipsel ||
+         test "x$OPENJDK_TARGET_CPU" = xppc ||
+         test "x$OPENJDK_TARGET_CPU" = xsh); then
+      BASIC_JVM_LIBS="$BASIC_JVM_LIBS -latomic"
+    fi
   fi
 
   # perfstat lib

make/conf/jib-profiles.js

@@ -1001,9 +1001,9 @@ var getJibProfilesProfiles = function (input, common, data) {
     // test tasks. Care must however be taken not to polute that work dir by
     // setting the appropriate make variables to control output directories.
     //
-    // Use the existance of the top level README as indication of if this is
+    // Use the existance of the top level README.md as indication of if this is
     // the full source or just src.conf.
-    if (!new java.io.File(__DIR__, "../../README").exists()) {
+    if (!new java.io.File(__DIR__, "../../README.md").exists()) {
         var runTestPrebuiltSrcFullExtra = {
             dependencies: "src.full",
             work_dir: input.get("src.full", "install_path"),

src/java.base/windows/native/libnio/ch/UnixDomainSockets.c

@@ -92,7 +92,16 @@ Java_sun_nio_ch_UnixDomainSockets_socketSupported(JNIEnv *env, jclass cl)
         return JNI_FALSE;
     }
     closesocket(s);
-    return JNI_TRUE;
+
+    /* Check for build 18362 or newer, due to Windows bug described in 8259014 */
+
+    OSVERSIONINFOEXW osvi = { sizeof(osvi), 0, 0, 0, 0, {0}, 0, 0 };
+    DWORDLONG cond_mask = 0;
+
+    VER_SET_CONDITION(cond_mask, VER_BUILDNUMBER, VER_GREATER_EQUAL);
+    osvi.dwBuildNumber  = 18362; // Windows 10 (1903) or newer
+
+    return VerifyVersionInfoW(&osvi, VER_BUILDNUMBER, cond_mask) != 0;
 }
 
 JNIEXPORT jint JNICALL

src/jdk.compiler/share/classes/com/sun/tools/doclint/DocLint.java

@@ -75,12 +75,15 @@ public abstract class DocLint implements Plugin {
 
         @Override
         public void init(JavacTask task, String... args) {
-            // ignore
+            throw new IllegalStateException("doclint not available");
         }
 
         @Override
         public boolean isValidOption(String s) {
-            return false;
+            // passively accept all "plausible" options
+            return s.equals(XMSGS_OPTION)
+                    || s.startsWith(XMSGS_CUSTOM_PREFIX)
+                    || s.startsWith(XCHECK_PACKAGE);
         }
     }
 }

src/jdk.compiler/share/classes/com/sun/tools/javac/api/BasicJavacTask.java

@@ -55,6 +55,7 @@ import com.sun.tools.javac.platform.PlatformDescription;
 import com.sun.tools.javac.platform.PlatformDescription.PluginInfo;
 import com.sun.tools.javac.processing.JavacProcessingEnvironment;
 import com.sun.tools.javac.resources.CompilerProperties.Errors;
+import com.sun.tools.javac.resources.CompilerProperties.Warnings;
 import com.sun.tools.javac.tree.JCTree;
 import com.sun.tools.javac.util.Context;
 import com.sun.tools.javac.util.DefinedBy;
@@ -257,8 +258,11 @@ public class BasicJavacTask extends JavacTask {
     public void initDocLint(List<String> docLintOpts) {
         if (docLintOpts.isEmpty())
             return;
-
+        try {
-        DocLint.newDocLint().init(this, docLintOpts.toArray(new String[docLintOpts.size()]));
+            DocLint.newDocLint().init(this, docLintOpts.toArray(new String[docLintOpts.size()]));
-        JavaCompiler.instance(context).keepComments = true;
+            JavaCompiler.instance(context).keepComments = true;
+        } catch (IllegalStateException e) {
+            Log.instance(context).warning(Warnings.DoclintNotAvailable);
+        }
     }
 }

src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties

@@ -2056,6 +2056,9 @@ compiler.warn.deprecated.annotation.has.no.effect=\
 compiler.warn.invalid.path=\
     Invalid filename: {0}
 
+compiler.warn.doclint.not.available=\
+    No service provider for doclint is available
+
 # 0: string
 compiler.err.invalid.path=\
     Invalid filename: {0}

src/jdk.incubator.foreign/share/classes/jdk/incubator/foreign/MemorySegment.java

@@ -876,10 +876,9 @@ allocateNative(bytesSize, 1);
      * @param mapMode a file mapping mode, see {@link FileChannel#map(FileChannel.MapMode, long, long)}; the chosen mapping mode
      *                might affect the behavior of the returned memory mapped segment (see {@link MappedMemorySegments#force(MemorySegment)}).
      * @return a new confined mapped memory segment.
-     * @throws IllegalArgumentException if {@code bytesOffset < 0}.
+     * @throws IllegalArgumentException if {@code bytesOffset < 0}, {@code bytesSize < 0}, or if {@code path} is not associated
-     * @throws IllegalArgumentException if {@code bytesSize < 0}.
+     * with the default file system.
-     * @throws UnsupportedOperationException if an unsupported map mode is specified, or if the {@code path} is associated
+     * @throws UnsupportedOperationException if an unsupported map mode is specified.
-     * with a provider that does not support creating file channels.
      * @throws IOException if the specified path does not point to an existing file, or if some other I/O error occurs.
      * @throws  SecurityException If a security manager is installed and it denies an unspecified permission required by the implementation.
      * In the case of the default provider, the {@link SecurityManager#checkRead(String)} method is invoked to check

src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MappedMemorySegmentImpl.java

@@ -34,6 +34,8 @@ import java.io.FileDescriptor;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
 import java.nio.file.OpenOption;
 import java.nio.file.Path;
 import java.nio.file.StandardOpenOption;
@@ -114,8 +116,13 @@ public class MappedMemorySegmentImpl extends NativeMemorySegmentImpl {
         Objects.requireNonNull(mapMode);
         if (bytesSize < 0) throw new IllegalArgumentException("Requested bytes size must be >= 0.");
         if (bytesOffset < 0) throw new IllegalArgumentException("Requested bytes offset must be >= 0.");
-        try (FileChannelImpl channelImpl = (FileChannelImpl)FileChannel.open(path, openOptions(mapMode))) {
+        FileSystem fs = path.getFileSystem();
-            UnmapperProxy unmapperProxy = channelImpl.mapInternal(mapMode, bytesOffset, bytesSize);
+        if (fs != FileSystems.getDefault() ||
+                fs.getClass().getModule() != Object.class.getModule()) {
+            throw new IllegalArgumentException("Unsupported file system");
+        }
+        try (FileChannel channelImpl = FileChannel.open(path, openOptions(mapMode))) {
+            UnmapperProxy unmapperProxy = ((FileChannelImpl)channelImpl).mapInternal(mapMode, bytesOffset, bytesSize);
             int modes = defaultAccessModes(bytesSize);
             if (mapMode == FileChannel.MapMode.READ_ONLY) {
                 modes &= ~WRITE;

src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlOptions.java

@@ -32,12 +32,12 @@ import java.util.List;
 import java.util.Set;
 import java.util.TreeSet;
 
-import com.sun.tools.doclint.DocLint;
 import jdk.javadoc.internal.doclets.toolkit.BaseOptions;
 import jdk.javadoc.internal.doclets.toolkit.Messages;
 import jdk.javadoc.internal.doclets.toolkit.Resources;
 import jdk.javadoc.internal.doclets.toolkit.util.DocFile;
 import jdk.javadoc.internal.doclets.toolkit.util.Utils;
+import jdk.javadoc.internal.doclint.DocLint;
 
 /**
  * Storage for all options supported by the
@@ -405,7 +405,7 @@ public class HtmlOptions extends BaseOptions {
                             messages.error("doclet.Option_doclint_no_qualifiers");
                             return false;
                         }
-                        if (!DocLint.newDocLint().isValidOption(dopt)) {
+                        if (!(new DocLint()).isValidOption(dopt)) {
                             messages.error("doclet.Option_doclint_invalid_arg");
                             return false;
                         }
@@ -418,7 +418,7 @@ public class HtmlOptions extends BaseOptions {
                     @Override
                     public boolean process(String opt,  List<String> args) {
                         String dopt = opt.replace("-Xdoclint/package:", DocLint.XCHECK_PACKAGE);
-                        if (!DocLint.newDocLint().isValidOption(dopt)) {
+                        if (!(new DocLint()).isValidOption(dopt)) {
                             messages.error("doclet.Option_doclint_package_invalid_arg");
                             return false;
                         }

test/jdk/java/foreign/TestByteBuffer.java

@@ -47,6 +47,7 @@ import java.lang.ref.WeakReference;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
+import java.net.URI;
 import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
@@ -513,6 +514,12 @@ public class TestByteBuffer {
         }
     }
 
+    @Test(expectedExceptions = IllegalArgumentException.class)
+    public void testMapCustomPath() throws IOException {
+        Path path = Path.of(URI.create("jrt:/"));
+        MemorySegment.mapFile(path, 0L, 0L, FileChannel.MapMode.READ_WRITE);
+    }
+
     @Test(dataProvider="resizeOps")
     public void testCopyHeapToNative(Consumer<MemorySegment> checker, Consumer<MemorySegment> initializer, SequenceLayout seq) {
         checkByteArrayAlignment(seq.elementLayout());

test/langtools/tools/javac/diags/examples.not-yet.txt

@@ -110,6 +110,7 @@ compiler.misc.wrong.version                             # ClassReader
 compiler.warn.annotation.method.not.found               # ClassReader
 compiler.warn.annotation.method.not.found.reason        # ClassReader
 compiler.warn.big.major.version                         # ClassReader
+compiler.warn.doclint.not.available                     # requires restricted image
 compiler.warn.future.attr                               # ClassReader
 compiler.warn.illegal.char.for.encoding
 compiler.warn.incubating.modules                        # requires adjusted classfile

test/langtools/tools/javac/doclint/LimitedImage.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2020, 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 8253996
+ * @summary Verify doclint behavior when doclint not available
+ * @library /tools/lib
+ * @modules jdk.compiler/com.sun.tools.javac.api
+ *          jdk.compiler/com.sun.tools.javac.main
+ * @run main/othervm --limit-modules jdk.compiler,jdk.zipfs LimitedImage
+ */
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.List;
+
+import toolbox.JavacTask;
+import toolbox.Task.Expect;
+import toolbox.Task.Mode;
+import toolbox.Task.OutputKind;
+import toolbox.ToolBox;
+
+public class LimitedImage {
+    public static void main(String... args) throws IOException {
+        ToolBox tb = new ToolBox();
+
+        //showing help should be OK
+        new JavacTask(tb, Mode.CMDLINE)
+                .options("--help")
+                .run().writeAll();
+
+        Path testSource = Path.of("Test.java");
+        tb.writeFile(testSource, "class Test {}");
+
+        List<String> actualOutput;
+        List<String> expectedOutput = List.of(
+                "- compiler.warn.doclint.not.available",
+                "1 warning"
+        );
+
+        //check proper diagnostics when doclint provider not present:
+        System.err.println("Test -Xdoclint when doclint not available");
+        actualOutput = new JavacTask(tb, Mode.CMDLINE)
+                .options("-XDrawDiagnostics", "-Xdoclint")
+                .files(testSource)
+                .outdir(".")
+                .run(Expect.SUCCESS)
+                .writeAll()
+                .getOutputLines(OutputKind.DIRECT);
+
+        tb.checkEqual(expectedOutput, actualOutput);
+    }
+
+}