File java11-compatibility.patch of Package gradle
--- a/subprojects/base-services/src/main/java/org/gradle/internal/classloader/ClassLoaderUtils.java
+++ b/subprojects/base-services/src/main/java/org/gradle/internal/classloader/ClassLoaderUtils.java
@@ -15,51 +15,41 @@
*/
package org.gradle.internal.classloader;
+import org.gradle.api.JavaVersion;
import org.gradle.internal.Cast;
import org.gradle.internal.UncheckedException;
import org.gradle.internal.concurrent.CompositeStoppable;
import org.gradle.internal.reflect.JavaMethod;
-import org.gradle.internal.reflect.JavaReflectionUtil;
-import sun.misc.Unsafe;
import javax.annotation.Nullable;
import java.io.IOException;
-import java.lang.reflect.Field;
-import java.net.MalformedURLException;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
import java.net.URL;
import java.net.URLConnection;
-public abstract class ClassLoaderUtils {
-
- private static final Unsafe UNSAFE;
-
- static {
- try {
- Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
- theUnsafe.setAccessible(true);
- UNSAFE = (Unsafe) theUnsafe.get(null);
- } catch (NoSuchFieldException e) {
- throw new RuntimeException(e);
- } catch (IllegalAccessException e) {
- throw new RuntimeException(e);
- }
- }
+import static org.gradle.internal.reflect.JavaReflectionUtil.method;
+import static org.gradle.internal.reflect.JavaReflectionUtil.staticMethod;
+public abstract class ClassLoaderUtils {
+ private static final ClassDefiner CLASS_DEFINER;
private static final JavaMethod<ClassLoader, Package[]> GET_PACKAGES_METHOD;
private static final JavaMethod<ClassLoader, Package> GET_PACKAGE_METHOD;
static {
+ CLASS_DEFINER = JavaVersion.current().isJava9Compatible() ? new LookupClassDefiner() : new ReflectionClassDefiner();
GET_PACKAGES_METHOD = getMethodWithFallback(Package[].class, new Class[0], "getDefinedPackages", "getPackages");
- GET_PACKAGE_METHOD = getMethodWithFallback(Package.class, new Class[] {String.class}, "getDefinedPackage", "getPackage");
+ GET_PACKAGE_METHOD = getMethodWithFallback(Package.class, new Class[]{String.class}, "getDefinedPackage", "getPackage");
}
private static <T> JavaMethod<ClassLoader, T> getMethodWithFallback(Class<T> clazz, Class<?>[] params, String firstChoice, String fallback) {
JavaMethod<ClassLoader, T> method;
try {
- method = JavaReflectionUtil.method(ClassLoader.class, clazz, firstChoice, params);
+ method = method(ClassLoader.class, clazz, firstChoice, params);
} catch (Throwable e) {
// We must not be on Java 9 where the getDefinedPackages() method exists. Fall back to getPackages()
- method = JavaReflectionUtil.method(ClassLoader.class, clazz, fallback, params);
+ method = method(ClassLoader.class, clazz, fallback, params);
}
return method;
}
@@ -85,8 +75,6 @@ public static void disableUrlConnectionCaching() {
URL url = new URL("jar:file://valid_jar_url_syntax.jar!/");
URLConnection urlConnection = url.openConnection();
urlConnection.setDefaultUseCaches(false);
- } catch (MalformedURLException e) {
- throw UncheckedException.throwAsUncheckedException(e);
} catch (IOException e) {
throw UncheckedException.throwAsUncheckedException(e);
}
@@ -101,6 +89,63 @@ public static void disableUrlConnectionCaching() {
}
public static <T> Class<T> define(ClassLoader targetClassLoader, String className, byte[] clazzBytes) {
- return Cast.uncheckedCast(UNSAFE.defineClass(className, clazzBytes, 0, clazzBytes.length, targetClassLoader, null));
+ return CLASS_DEFINER.defineClass(targetClassLoader, className, clazzBytes);
+ }
+
+ private interface ClassDefiner {
+ <T> Class<T> defineClass(ClassLoader classLoader, String className, byte[] classBytes);
+ }
+
+ private static class ReflectionClassDefiner implements ClassDefiner {
+ private final JavaMethod<ClassLoader, Class> defineClassMethod;
+
+ private ReflectionClassDefiner() {
+ defineClassMethod = method(ClassLoader.class, Class.class, "defineClass", String.class, byte[].class, int.class, int.class);
+ }
+
+ @Override
+ public <T> Class<T> defineClass(ClassLoader classLoader, String className, byte[] classBytes) {
+ return Cast.uncheckedCast(defineClassMethod.invoke(classLoader, className, classBytes, 0, classBytes.length));
+ }
+ }
+
+ private static class LookupClassDefiner implements ClassDefiner {
+ private final Class methodHandlesLookupClass;
+ private final JavaMethod methodHandlesLookup;
+ private final JavaMethod methodHandlesPrivateLookupIn;
+ private final JavaMethod lookupFindVirtual;
+ private final MethodType defineClassMethodType;
+
+ private LookupClassDefiner() {
+ try {
+ methodHandlesLookupClass = Class.forName("java.lang.invoke.MethodHandles$Lookup");
+ } catch (ClassNotFoundException e) {
+ throw new RuntimeException(e);
+ }
+ methodHandlesLookup = staticMethod(MethodHandles.class, methodHandlesLookupClass, "lookup");
+ methodHandlesPrivateLookupIn = staticMethod(MethodHandles.class, methodHandlesLookupClass, "privateLookupIn", Class.class, methodHandlesLookupClass);
+ lookupFindVirtual = method(methodHandlesLookupClass, MethodHandle.class, "findVirtual", Class.class, String.class, MethodType.class);
+ defineClassMethodType = MethodType.methodType(Class.class, new Class[]{String.class, byte[].class, int.class, int.class});
+ }
+
+ /*
+ This method is equivalent to the following code but use reflection to compile on Java 7:
+
+ MethodHandles.Lookup baseLookup = MethodHandles.lookup();
+ MethodHandles.Lookup lookup = MethodHandles.privateLookupIn(ClassLoader.class, baseLookup);
+ MethodHandle defineClassMethodHandle = lookup.findVirtual(ClassLoader.class, "defineClass", defineClassMethodType);
+ handle.bindTo(classLoader).invokeWithArguments(className, classBytes, 0, classBytes.length));
+ */
+ @Override
+ public <T> Class<T> defineClass(ClassLoader classLoader, String className, byte[] classBytes) {
+ Object baseLookup = methodHandlesLookup.invoke(null);
+ Object lookup = methodHandlesPrivateLookupIn.invoke(null, ClassLoader.class, baseLookup);
+ MethodHandle defineClassMethodHandle = (MethodHandle) lookupFindVirtual.invoke(lookup, ClassLoader.class, "defineClass", defineClassMethodType);
+ try {
+ return Cast.uncheckedCast(defineClassMethodHandle.bindTo(classLoader).invokeWithArguments(className, classBytes, 0, classBytes.length));
+ } catch (Throwable throwable) {
+ throw new RuntimeException(throwable);
+ }
+ }
}
}
--- a/subprojects/core/src/main/java/org/gradle/process/internal/worker/child/WorkerProcessClassPathProvider.java
+++ b/subprojects/core/src/main/java/org/gradle/process/internal/worker/child/WorkerProcessClassPathProvider.java
@@ -18,6 +18,7 @@
import org.gradle.api.Action;
import org.gradle.api.GradleException;
+import org.gradle.api.JavaVersion;
import org.gradle.api.internal.ClassPathProvider;
import org.gradle.api.specs.Spec;
import org.gradle.cache.CacheRepository;
@@ -57,7 +58,9 @@
import java.io.InputStream;
import java.net.URL;
import java.util.Arrays;
+import java.util.HashSet;
import java.util.List;
+import java.util.Set;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
@@ -116,32 +119,9 @@ public void execute(PersistentCache cache) {
try {
File jarFile = jarFile(cache);
LOGGER.debug("Generating worker process classes to {}.", jarFile);
-
- // TODO - calculate this list of classes dynamically
- List<Class<?>> classes = Arrays.asList(
- GradleWorkerMain.class,
- BootstrapSecurityManager.class,
- EncodedStream.EncodedInput.class,
- ClassLoaderUtils.class,
- FilteringClassLoader.class,
- FilteringClassLoader.Spec.class,
- ClassLoaderHierarchy.class,
- ClassLoaderVisitor.class,
- ClassLoaderSpec.class,
- SystemClassLoaderSpec.class,
- JavaReflectionUtil.class,
- JavaMethod.class,
- GradleException.class,
- NoSuchPropertyException.class,
- NoSuchMethodException.class,
- UncheckedException.class,
- PropertyAccessor.class,
- PropertyMutator.class,
- Factory.class,
- Spec.class);
ZipOutputStream outputStream = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(jarFile)));
try {
- for (Class<?> classToMap : classes) {
+ for (Class<?> classToMap : getClassesForWorkerJar()) {
remapClass(classToMap, outputStream);
}
} finally {
@@ -152,6 +132,37 @@ public void execute(PersistentCache cache) {
}
}
+ private Set<Class<?>> getClassesForWorkerJar() {
+ // TODO - calculate this list of classes dynamically
+ List<Class<?>> classes = Arrays.asList(
+ GradleWorkerMain.class,
+ BootstrapSecurityManager.class,
+ EncodedStream.EncodedInput.class,
+ ClassLoaderUtils.class,
+ FilteringClassLoader.class,
+ ClassLoaderHierarchy.class,
+ ClassLoaderVisitor.class,
+ ClassLoaderSpec.class,
+ SystemClassLoaderSpec.class,
+ JavaReflectionUtil.class,
+ JavaMethod.class,
+ GradleException.class,
+ NoSuchPropertyException.class,
+ NoSuchMethodException.class,
+ UncheckedException.class,
+ PropertyAccessor.class,
+ PropertyMutator.class,
+ Factory.class,
+ Spec.class,
+ JavaVersion.class);
+ Set<Class<?>> result = new HashSet<Class<?>>(classes);
+ for (Class<?> klass : classes) {
+ result.addAll(Arrays.asList(klass.getDeclaredClasses()));
+ }
+
+ return result;
+ }
+
private void remapClass(Class<?> classToMap, ZipOutputStream jar) throws IOException {
String internalName = Type.getInternalName(classToMap);
String resourceName = internalName.concat(".class");
--- a/subprojects/base-services/src/main/java/org/gradle/api/JavaVersion.java
+++ b/subprojects/base-services/src/main/java/org/gradle/api/JavaVersion.java
@@ -17,25 +17,26 @@
import com.google.common.annotations.VisibleForTesting;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
+import java.util.ArrayList;
+import java.util.List;
/**
* An enumeration of Java versions.
+ * Before 9: http://www.oracle.com/technetwork/java/javase/versioning-naming-139433.html
+ * 9+: http://openjdk.java.net/jeps/223
*/
public enum JavaVersion {
- VERSION_1_1(false), VERSION_1_2(false), VERSION_1_3(false), VERSION_1_4(false),
- // starting from here versions are 1_ but their official name is "Java 6", "Java 7", ...
- VERSION_1_5(true), VERSION_1_6(true), VERSION_1_7(true), VERSION_1_8(true), VERSION_1_9(true), VERSION_1_10(true);
+ VERSION_1_1, VERSION_1_2, VERSION_1_3, VERSION_1_4,
+ VERSION_1_5, VERSION_1_6, VERSION_1_7, VERSION_1_8,
+ VERSION_1_9, VERSION_1_10, VERSION_11, VERSION_HIGHER;
+ // Since Java 9, version should be X instead of 1.X
+ // However, to keep backward compatibility, we change from 11
+ private static final int FIRST_MAJOR_VERSION_ORDINAL = 10;
private static JavaVersion currentJavaVersion;
- private final boolean hasMajorVersion;
private final String versionName;
- private final String majorVersion;
- JavaVersion(boolean hasMajorVersion) {
- this.hasMajorVersion = hasMajorVersion;
- this.versionName = name().substring("VERSION_".length()).replace('_', '.');
- this.majorVersion = name().substring(10);
+ JavaVersion() {
+ this.versionName = ordinal() >= FIRST_MAJOR_VERSION_ORDINAL ? getMajorVersion() : "1." + getMajorVersion();
}
/**
@@ -54,22 +55,18 @@
}
String name = value.toString();
- Matcher matcher = Pattern.compile("(\\d{1,2})(\\D.+)?").matcher(name);
- if (matcher.matches()) {
- int index = Integer.parseInt(matcher.group(1)) - 1;
- if (index > 0 && index < values().length && values()[index].hasMajorVersion) {
- return values()[index];
- }
- }
- matcher = Pattern.compile("1\\.(\\d{1,2})(\\D.+)?").matcher(name);
- if (matcher.matches()) {
- int versionIdx = Integer.parseInt(matcher.group(1)) - 1;
- if (versionIdx >= 0 && versionIdx < values().length) {
- return values()[versionIdx];
- }
+ int firstNonVersionCharIndex = findFirstNonVersionCharIndex(name);
+
+ String[] versionStrings = name.substring(0, firstNonVersionCharIndex).split("\\.");
+ List<Integer> versions = convertToNumber(name, versionStrings);
+
+ if (isLegacyVersion(versions)) {
+ assertTrue(name, versions.get(1) > 0);
+ return getVersionForMajor(versions.get(1));
+ } else {
+ return getVersionForMajor(versions.get(0));
}
- throw new IllegalArgumentException(String.format("Could not determine java version from '%s'.", name));
}
/**
@@ -90,11 +87,7 @@
}
public static JavaVersion forClassVersion(int classVersion) {
- int index = classVersion - 45; //class file versions: 1.1 == 45, 1.2 == 46...
- if (index >= 0 && index < values().length) {
- return values()[index];
- }
- throw new IllegalArgumentException(String.format("Could not determine java version from '%d'.", classVersion));
+ return getVersionForMajor(classVersion - 44); //class file versions: 1.1 == 45, 1.2 == 46...
}
public static JavaVersion forClass(byte[] classData) {
@@ -116,18 +109,22 @@
return this == VERSION_1_7;
}
- private boolean isJava8() {
+ public boolean isJava8() {
return this == VERSION_1_8;
}
- private boolean isJava9() {
+ public boolean isJava9() {
return this == VERSION_1_9;
}
- private boolean isJava10() {
+ public boolean isJava10() {
return this == VERSION_1_10;
}
+ public boolean isJava11() {
+ return this == VERSION_11;
+ }
+
public boolean isJava5Compatible() {
return this.compareTo(VERSION_1_5) >= 0;
}
@@ -148,21 +145,69 @@
return this.compareTo(VERSION_1_9) >= 0;
}
- @Incubating
public boolean isJava10Compatible() {
return this.compareTo(VERSION_1_10) >= 0;
}
- @Override
- public String toString() {
- return getName();
+ public boolean isJava11Compatible() {
+ return this.compareTo(VERSION_11) >= 0;
}
- private String getName() {
+ @Override
+ public String toString() {
return versionName;
}
public String getMajorVersion() {
- return majorVersion;
+ return String.valueOf(ordinal() + 1);
+ }
+
+ private static JavaVersion getVersionForMajor(int major) {
+ return major >= values().length ? JavaVersion.VERSION_HIGHER : values()[major - 1];
+ }
+
+ private static void assertTrue(String value, boolean condition) {
+ if (!condition) {
+ throw new IllegalArgumentException("Could not determine java version from '" + value + "'.");
+ }
+ }
+
+ private static boolean isLegacyVersion(List<Integer> versions) {
+ return 1 == versions.get(0) && versions.size() > 1;
+ }
+
+ private static List<Integer> convertToNumber(String value, String[] versionStrs) {
+ List<Integer> result = new ArrayList<Integer>();
+ for (String s : versionStrs) {
+ assertTrue(value, !isNumberStartingWithZero(s));
+ try {
+ result.add(Integer.parseInt(s));
+ } catch (NumberFormatException e) {
+ assertTrue(value, false);
+ }
+ }
+ assertTrue(value, !result.isEmpty() && result.get(0) > 0);
+ return result;
+ }
+
+ private static boolean isNumberStartingWithZero(String number) {
+ return number.length() > 1 && number.startsWith("0");
+ }
+
+ private static int findFirstNonVersionCharIndex(String s) {
+ assertTrue(s, s.length() != 0);
+
+ for (int i = 0; i < s.length(); ++i) {
+ if (!isDigitOrPeriod(s.charAt(i))) {
+ assertTrue(s, i != 0);
+ return i;
+ }
+ }
+
+ return s.length();
+ }
+
+ private static boolean isDigitOrPeriod(char c) {
+ return (c >= '0' && c <= '9') || c == '.';
}
}
--- a/subprojects/jvm-services/src/main/java/org/gradle/internal/jvm/inspection/DefaultJvmVersionDetector.java
+++ b/subprojects/jvm-services/src/main/java/org/gradle/internal/jvm/inspection/DefaultJvmVersionDetector.java
@@ -62,7 +62,7 @@ public class DefaultJvmVersionDetector i
try {
String versionStr = reader.readLine();
while (versionStr != null) {
- Matcher matcher = Pattern.compile("(?:java|openjdk) version \"(.+?)\"").matcher(versionStr);
+ Matcher matcher = Pattern.compile("(?:java|openjdk) version \"(.+?)\"( \\d{4}-\\d{2}-\\d{2}( LTS)?)?").matcher(versionStr);
if (matcher.matches()) {
return JavaVersion.toVersion(matcher.group(1));
}
