[HARMONY-5831] [classlib][beans] XMLDecoder will throw exception for restrict method type check

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0M6
• Fix Version/s: 5.0M6
• Component/s: Classlib
• Patch Info: Patch Available
• Assignee: Tony Wu
• Reporter: Sean Qiu
• Created: 20/May/08 07:39
• Updated: 22/May/08 10:04
• Resolved: 22/May/08 09:27

Description

The java.beans.XMLDecoder gets NoSuchMethodExceptions when method which take java.lang.Object as parameters are invoked with a java.lang.String against an "owner" object. In general, XMLDecoder throws a NoSuchMethodException unless the classes of the arguments match exactly with a method signature.

xml file:
<java version='1.6.0' class='java.beans.XMLDecoder'>
<void property='owner'>
<void method='get' id='v'>
<string>key</string>
</void>
</void>
<object idref='v'/>
</java>

testcase:

String expectedValue = "expected value";
HashMap map = new HashMap();
map.put("key", expectedValue);

XMLDecoder decoder = new XMLDecoder(this.getClass().getResourceAsStream(
"/xml/MockOwner.xml"), map);
String actualValue = (String) decoder.readObject();
assertEquals(expectedValue,actualValue);

stack trace:
java.lang.NoSuchMethodException: get(java.lang.String)
at java.lang.Class.findMatchingMethod(Unknown Source)
at java.lang.Class.getMethod(Unknown Source)
at java.beans.XMLDecoder$SAXHandler.executeCommon(XMLDecoder.java:336)
at java.beans.XMLDecoder$SAXHandler.execute(XMLDecoder.java:285)
at java.beans.XMLDecoder$SAXHandler.endElement(XMLDecoder.java:250)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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 org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at java.beans.XMLDecoder.<init>(XMLDecoder.java:480)
at java.beans.XMLDecoder.<init>(XMLDecoder.java:456)
at DecoderTest.decode(DecoderTest.java:28)
at DecoderTest.main(DecoderTest.java:108)