XPathExpression.evaluate() throws IAE in case of simple expressions

Name: eaR10174 Date: 12/22/2003


The method

     javax.xml.xpath.XPathExpression.evaluate(Object, QName)

throws IllegalArgumentException evaluating simple expressions in the absence of a context item.
The sample below shows failure with the "1+1" expression. According to the javadoc
the method should not throw IAE in such cases.

The bug affects new JCK1.5 tests:

   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate010]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate011]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate012]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate013]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate014]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate015]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate016]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate017]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate018]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate019]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate020]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate021]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate022]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate023]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate024]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate025]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate026]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate027]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate028]
   api/javax_xml/xpath/XPathExpression/index.html#Evaluate[Evaluate030]

The following test fails running on JDK 1.5.0-beta-b32.
See below the test source and the execution log:
------------------------------------test.java-----------------------------
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathFactory;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;

public class test {

     public static void main (String[] args) {
         try {
             XPathFactory xpf = XPathFactory.newInstance(XPathConstants.DOM_OBJECT_MODEL);
             XPath xpath = xpf.newXPath();
             XPathExpression expr = xpath.compile("1+1");
             expr.evaluate((Object)null, XPathConstants.NUMBER);
         } catch (Exception e) {
             e.printStackTrace();
             System.exit(1);
         }
     }
}
--------------------------------------------------------------------------
% java -showversion test
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b32)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b32, mixed mode)

java.lang.IllegalArgumentException: Node must be non-null for getDTMHandleFromNode
at
com.sun.org.apache.xml.internal.dtm.ref.DTMManagerDefault.getDTMHandleFromNode(DTMManagerDefault.java:512)
at com.sun.org.apache.xpath.internal.XPathContext.getDTMHandleFromNode(XPathContext.java:192)
at com.sun.org.apache.xpath.internal.XPath.execute(XPath.java:272)
at com.sun.org.apache.xpath.internal.jaxp.XPathExpressionImpl.eval(XPathExpressionImpl.java:66)
at com.sun.org.apache.xpath.internal.jaxp.XPathExpressionImpl.evaluate(XPathExpressionImpl.java:118)
at test.main(test.java:13)
--------------------------------------------------------------------------

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