Mario Jauvin created XALANJ-2615:
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Summary: Exception access public method using Java extension
Key: XALANJ-2615
URL: https://issues.apache.org/jira/browse/XALANJ-2615
Project: XalanJ2
Issue Type: Bug
Security Level: No security risk; visible to anyone (Ordinary problems in
Xalan projects. Anybody can view the issue.)
Components: Xalan-extensions
Affects Versions: 2.7.2
Reporter: Mario Jauvin
Assignee: Steven J. Hathaway
Using this sample stylesheet:
{code:java}
<?xml version="1.0" encoding="UTF-8"?>
<stylesheet version="1.0" xmlns="http://www.w3.org/1999/XSL/Transform";
xmlns:java="http://xml.apache.org/xalan/java";>
<template match="/">
<!-- <variable name="p"
select="java:exec(java:java.lang.Runtime.getRuntime(), 'cmd /c dir /b')"/> -->
<variable name="p" select="java:exec(java:java.lang.Runtime.getRuntime(),
'cmd /c echo oui&echo non')"/>
<variable name="is" select="java:getInputStream($p)"/>
</template>
</stylesheet>{code}
and this XML file
{code:java}
<?xml version="1.0" encoding="UTF-8"?>
<dummy/>{code}
When accessing the getInputStream method of the java.lang.Process class using
XALAN I get this error:
{noformat}
15:16:01,284 INFO [main] Main -
javax.xml.transform.TransformerFactory=org.apache.xalan.processor.TransformerFactoryImpl
15:16:01,287 INFO [main] Main -
java.endorsed.dirs=C:\radws\workspace\build-env\.metadata\.plugins\org.eclipse.wst.xsl.jaxp.launching\endorsed
15:16:01,293 INFO [main] Main - launchFile:
C:\radws\workspace\build-env\.metadata\.plugins\org.eclipse.wst.xsl.jaxp.launching\launch\launch.xml
15:16:01,503 INFO [main] JAXPSAXProcessorInvoker - Transforming...
file:/C:/radws/workspace/build-env/add-infra/samples/t1.xsl; Line #7; Column
#57; java.lang.IllegalAccessException: Class
org.apache.xalan.extensions.ExtensionHandlerJavaPackage can not access a member
of class java.lang.ProcessImpl with modifiers "public"
file:/C:/radws/workspace/build-env/add-infra/samples/t1.xsl; Line #7; Column
#57; java.lang.NullPointerException
15:16:01,533 INFO [main] JAXPSAXProcessorInvoker - Done.{noformat}
This problem is due to the fact that the class ProcessImpl is not exactly
identical to the interface java.lang.Process signature. If you set the
override to true in the method object (using AccessibleObject.setAccessible)
you will be able to invoke the method. This works in the JRE 8 xsl transformer.
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