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Date: Sun, 8 Jul 2007 23:00:33 -0700 (PDT)
From: "spark shen (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Updated: (HARMONY-4321) [classlib][beans] Current java6 bean
 implementation does not persist some class properly
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     [ https://issues.apache.org/jira/browse/HARMONY-4321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

spark shen updated HARMONY-4321:
--------------------------------

    Attachment:     (was: HY-4321.sh)

> [classlib][beans] Current java6 bean implementation does not persist some class properly
> ----------------------------------------------------------------------------------------
>
>                 Key: HARMONY-4321
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4321
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: spark shen
>            Assignee: Leo Li
>
> class Bar {
> 		public int value;
> 		public void barTalk() {
> 			System.out.println("Bar is coming!");
> 		}
> 	}
> public void test_writeObject_java_lang_reflect_Field()
> 			throws SecurityException, NoSuchFieldException {
> 		ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
> 		XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(
> 				byteArrayOutputStream));
> 		Field value = Bar.class.getField("value");
> 		encoder.writeObject(value);
> 		encoder.close();
> 		DataInputStream stream = new DataInputStream(new ByteArrayInputStream(
> 				byteArrayOutputStream.toByteArray()));
> 		XMLDecoder decoder = new XMLDecoder(stream);
> 		Field field = (Field) decoder.readObject();
> 		assertEquals(value, field);
> 		assertEquals(value.getName(), field.getName());
> }
> Test result:
> Harmony-branch-java6:
> class java.lang.NullPointerException: newInstance is null
> org.xml.sax.SAXException: No constructor for class java.lang.reflect.Field found
>         at org.apache.harmony.beans.Handler.endElement(Handler.java:113)
>         at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
>         at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
>         at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
>         at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
>         at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
>         at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
>         at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>         at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>         at java.beans.XMLDecoder.initialize(XMLDecoder.java:128)
>         at java.beans.XMLDecoder.readObject(XMLDecoder.java:77)
>         at org.apache.harmony.beans.tests.java.beans.PersistenceDelegateTest.test_writeObject_java_lang_reflect_Field(PersistenceDelegateTest.java:266)
>         at java.lang.reflect.AccessibleObject.invokeV(AccessibleObject.java:207)
>         at java.lang.reflect.Method.invoke(Method.java:258)
>         at junit.framework.TestCase.runTest(TestCase.java:154)
>         at junit.framework.TestCase.runBare(TestCase.java:127)
>         at junit.framework.TestResult$1.protect(TestResult.java:106)
>         at junit.framework.TestResult.runProtected(TestResult.java:124)
>         at junit.framework.TestResult.run(TestResult.java:109)
>         at junit.framework.TestCase.run(TestCase.java:118)
>         at junit.framework.TestSuite.runTest(TestSuite.java:208)
>         at junit.framework.TestSuite.run(TestSuite.java:203)
>         at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:297)
>         at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:672)
>         at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:567)
> Caused by: java.lang.NoSuchMethodException: No constructor for class java.lang.reflect.Field found
>         at java.beans.Statement.findConstructor(Statement.java:242)
>         at java.beans.Statement.invokeMethod(Statement.java:122)
>         at java.beans.Expression.getValue(Expression.java:71)
>         at org.apache.harmony.beans.Command.doRun(Command.java:273)
>         at org.apache.harmony.beans.Command.exec(Command.java:162)
>         at org.apache.harmony.beans.Handler.endElement(Handler.java:111)
>         ... 24 more
> RI:
> successful
> I suspect there are still other classes not properly handle by XMLEncoder. I am trying to implement them.

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