--- a/nashorn/.hgtags Wed Jul 05 22:41:19 2017 +0200
+++ b/nashorn/.hgtags Wed Jul 05 22:41:30 2017 +0200
@@ -385,3 +385,4 @@
c281306d33d83c92e0d870ace385d5f99678d7e7 jdk-9+149
ace1d994bca775d6545a4c874ae73d1dfc9ec18b jdk-9+150
2a0437036a64853334e538044eb68d2df70075fa jdk-9+151
+ddc52e72757086a75a54371e8e7f56a3f89f1e55 jdk-9+152
--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/PropertyMap.java Wed Jul 05 22:41:19 2017 +0200
+++ b/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/PropertyMap.java Wed Jul 05 22:41:30 2017 +0200
@@ -1032,7 +1032,7 @@
}
final Object key = property.getKey();
- property = iter.next();
+ property = iter.hasNext() ? iter.next() : null;
skipNotEnumerable();
return key;
--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/RecompilableScriptFunctionData.java Wed Jul 05 22:41:19 2017 +0200
+++ b/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/RecompilableScriptFunctionData.java Wed Jul 05 22:41:30 2017 +0200
@@ -28,6 +28,8 @@
import static jdk.nashorn.internal.lookup.Lookup.MH;
import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
@@ -100,7 +102,7 @@
* reparsed from source, or a soft reference to a {@code FunctionNode} for other functions (it is safe
* to be cleared as they can be reparsed).
*/
- private volatile Object cachedAst;
+ private volatile transient Object cachedAst;
/** Token of this function within the source. */
private final long token;
@@ -289,6 +291,9 @@
if (this.source == null && this.installer == null) {
this.source = src;
this.installer = inst;
+ for (final RecompilableScriptFunctionData nested : nestedFunctions.values()) {
+ nested.initTransients(src, inst);
+ }
} else if (this.source != src || !this.installer.isCompatibleWith(inst)) {
// Existing values must be same as those passed as parameters
throw new IllegalArgumentException();
@@ -424,7 +429,7 @@
} else if (lCachedAst instanceof SerializedAst) {
final SerializedAst serializedAst = (SerializedAst)lCachedAst;
// Even so, are we also softly caching the AST?
- final FunctionNode cachedFn = serializedAst.cachedAst.get();
+ final FunctionNode cachedFn = serializedAst.cachedAst == null ? null : serializedAst.cachedAst.get();
if (cachedFn != null) {
// Yes we are - this is fast
return cloneSymbols(cachedFn);
@@ -492,9 +497,11 @@
* we're using this tuple instead to also keep a deserialized AST around in memory to cut down on
* deserialization costs.
*/
- private static class SerializedAst {
+ private static class SerializedAst implements Serializable {
private final byte[] serializedAst;
- private volatile Reference<FunctionNode> cachedAst;
+ private volatile transient Reference<FunctionNode> cachedAst;
+
+ private static final long serialVersionUID = 1L;
SerializedAst(final FunctionNode fn, final Reference<FunctionNode> cachedAst) {
this.serializedAst = AstSerializer.serialize(fn);
@@ -1038,8 +1045,20 @@
return true;
}
+ private void writeObject(final ObjectOutputStream out) throws IOException {
+ final Object localCachedAst = cachedAst;
+ out.defaultWriteObject();
+ // We need to persist SerializedAst for split functions as they can't reparse the source code.
+ if (localCachedAst instanceof SerializedAst) {
+ out.writeObject(localCachedAst);
+ } else {
+ out.writeObject(null);
+ }
+ }
+
private void readObject(final java.io.ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
+ cachedAst = in.readObject();
createLogger();
}
--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/resources/fx/base.js Wed Jul 05 22:41:19 2017 +0200
+++ b/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/resources/fx/base.js Wed Jul 05 22:41:30 2017 +0200
@@ -108,7 +108,7 @@
}
});
- Files.walkFileTree(rootDirectories[0], new JRTFSWalker());
+ Files.walkFileTree(rootDirectories.toArray()[0], new JRTFSWalker());
})();
LOAD_FX_CLASSES(this, "javafx.base");
--- a/nashorn/test/src/jdk/nashorn/internal/runtime/test/CodeStoreAndPathTest.java Wed Jul 05 22:41:19 2017 +0200
+++ b/nashorn/test/src/jdk/nashorn/internal/runtime/test/CodeStoreAndPathTest.java Wed Jul 05 22:41:30 2017 +0200
@@ -47,7 +47,7 @@
@SuppressWarnings("javadoc")
public class CodeStoreAndPathTest {
- final String code1 = "var code1; var x = 'Hello Script'; var x1 = 'Hello Script'; "
+ final static String code1 = "var code1; var x = 'Hello Script'; var x1 = 'Hello Script'; "
+ "var x2 = 'Hello Script'; var x3 = 'Hello Script'; "
+ "var x4 = 'Hello Script'; var x5 = 'Hello Script';"
+ "var x6 = 'Hello Script'; var x7 = 'Hello Script'; "
@@ -69,7 +69,7 @@
+ "x3='Bye Script'; x4='Bye Script'; x5='Bye Script'; x6='Bye Script';"
+ "x7='Bye Script'; x8='Bye Script'; var x9 = 'Hello Script'; "
+ "var x10 = 'Hello Script';}";
- final String code2 = "var code2; var x = 'Hello Script'; var x1 = 'Hello Script'; "
+ final static String code2 = "var code2; var x = 'Hello Script'; var x1 = 'Hello Script'; "
+ "var x2 = 'Hello Script'; var x3 = 'Hello Script'; "
+ "var x4 = 'Hello Script'; var x5 = 'Hello Script';"
+ "var x6 = 'Hello Script'; var x7 = 'Hello Script'; "
@@ -92,9 +92,306 @@
+ "x7='Bye Script'; x8='Bye Script'; var x9 = 'Hello Script'; "
+ "var x10 = 'Hello Script';}";
// Script size < Default minimum size for storing a compiled script class
- final String code3 = "var code3; var x = 'Hello Script'; var x1 = 'Hello Script'; ";
- final String codeCache = "build/nashorn_code_cache";
- final String oldUserDir = System.getProperty("user.dir");
+ final static String code3 = "var code3; var x = 'Hello Script'; var x1 = 'Hello Script'; ";
+ final static String nestedFunctions = "\n" +
+ "(function outer() { \n" +
+ " var map = null; \n" +
+ " (function inner() { \n" +
+ " var object; \n" +
+ " if (map === null) { \n" +
+ " map = (function() { \n" +
+ " var HashMap = Java.type('java.util.HashMap'); \n" +
+ " map = new HashMap(); \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " return map; \n" +
+ " }()); \n" +
+ " } \n" +
+ " object = {}; \n" +
+ " return object; \n" +
+ " })(); \n" +
+ "}()); ";
+ final static String longNestedFunctions = "\n" +
+ "(function outer() { \n" +
+ " var map = null; \n" +
+ " (function inner() { \n" +
+ " var object; \n" +
+ " var HashMap = Java.type('java.util.HashMap'); \n" +
+ " map = new HashMap(); \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address';\n" +
+ " map.name = 'name'; \n" +
+ " map.id = 1234;\n" +
+ " map.basePath = 'basePath'; \n" +
+ " map.extensionPath = 'extension';\n" +
+ " map.address = 'address'; \n" +
+ " object = {}; \n" +
+ " return object; \n" +
+ " })(); \n" +
+ "}()); ";
+ final static String codeCache = "build/nashorn_code_cache";
+ final static String oldUserDir = System.getProperty("user.dir");
private static final String[] ENGINE_OPTIONS_OPT = new String[]{"--persistent-code-cache", "--optimistic-types=true"};
private static final String[] ENGINE_OPTIONS_NOOPT = new String[]{"--persistent-code-cache", "--optimistic-types=false"};
@@ -166,6 +463,28 @@
checkCompiledScripts(stream, 4);
}
+ @Test
+ public void testNestedFunctionStore() throws ScriptException, IOException {
+ System.setProperty("nashorn.persistent.code.cache", codeCache);
+ final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(nestedFunctions);
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(nestedFunctions);
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(nestedFunctions);
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(nestedFunctions);
+ }
+
+ @Test
+ public void testSplitFunctionStore() throws ScriptException, IOException {
+ System.setProperty("nashorn.persistent.code.cache", codeCache);
+ System.setProperty("nashorn.compiler.splitter.threshold", "500");
+ final NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(longNestedFunctions);
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(longNestedFunctions);
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(longNestedFunctions);
+ factory.getScriptEngine(ENGINE_OPTIONS_OPT).eval(longNestedFunctions);
+ System.getProperties().remove("nashorn.compiler.splitter.threshold");
+ }
+
private static Path getCodeCachePath(final boolean optimistic) {
final String codeCache = System.getProperty("nashorn.persistent.code.cache");
final Path codeCachePath = FileSystems.getDefault().getPath(codeCache).toAbsolutePath();
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/src/jdk/nashorn/internal/runtime/test/PropertyMapTest.java Wed Jul 05 22:41:30 2017 +0200
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2016, 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package jdk.nashorn.internal.runtime.test;
+
+import java.util.Iterator;
+import jdk.nashorn.internal.runtime.PropertyMap;
+import jdk.nashorn.internal.runtime.ScriptObject;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+/**
+ * Tests for PropertyMap functionality
+ *
+ * @test
+ * @modules jdk.scripting.nashorn/jdk.nashorn.internal.runtime
+ * @run testng jdk.nashorn.internal.runtime.test.PropertyMapTest
+ */
+@SuppressWarnings("javadoc")
+public class PropertyMapTest {
+
+ @Test
+ public void propertyMapIteratorTest() {
+ final ScriptObject scriptObject = new ScriptObject(PropertyMap.newMap()) {};
+ Assert.assertFalse(scriptObject.getMap().iterator().hasNext());
+
+ scriptObject.set("a", "a", 0);
+ scriptObject.set("b", 3, 0);
+ // 3 is a valid array key not stored in property map
+ scriptObject.set(3, 1, 0);
+ scriptObject.set(6.5, 1.3, 0);
+ final Iterator<Object> iterator = scriptObject.getMap().iterator();
+
+ Assert.assertTrue(iterator.hasNext());
+ Assert.assertEquals(iterator.next(), "a");
+ Assert.assertTrue(iterator.hasNext());
+ Assert.assertEquals(iterator.next(), "b");
+ Assert.assertTrue(iterator.hasNext());
+ Assert.assertEquals(iterator.next(), "6.5");
+ Assert.assertFalse(iterator.hasNext());
+ }
+
+}