The issue for the XSLTC was raised at
https://mail.openjdk.java.net/pipermail/core-libs-dev/2021-October/082767.html
:
The code in compile(InputSource input, String name) at
https://github.com/openjdk/jdk/blob/master/src/java.xml/share/classes/com/sun/org/apache/xalan/internal/xsltc/compiler/XSLTC.java
seems incorrect as follows:
public boolean compile(InputSource input, String name) {
try {
// Reset globals in case we're called by compile(ArrayList v);
reset();
// The systemId may not be set, so we'll have to check the URL
String systemId = null;
if (input != null) {
systemId = input.getSystemId();
}
// Set the translet class name if not already set
if (_className == null) {
if (name != null) {
setClassName(name);
}
else if (systemId != null && !systemId.equals("")) {
setClassName(Util.baseName(systemId)); <---
incorrect here
}
// Ensure we have a non-empty class name at this point
if (_className == null || _className.length() == 0) {
setClassName("GregorSamsa"); // default translet name
}
}
...
Specifically, the code above assumes that systemId is something like
"xxx:yyy" in which case the class name (_className) is
"die.verwandlung.yyy" ("die.verwandlung." is the default package name since
Java11) However,Util.baseName(systemId) returns null when systemId is
something like "xxx:" (empty after ":"), in which case the class name
(_className) ends up with "die.verwandlung."(an invalid class name inserted
in the constant pool of the generated bytecode).
>From the perspective of robustness, the code above should be updated to
handle the situation. e.g.
else if (systemId != null && !systemId.equals("")) {
String baseName = Util.baseName(systemId);
if ((baseName != null) && (baseName.length() > 0))
{ <--
setClassName(baseName);
}
which means it should check whether the returned base name from
Util.baseName(systemId) is empty before setting the class name; otherwise,
it should use the default class name ("GregorSamsa").
Thanks and Best Regards
Cheng Jin
J9 VM, IBM Ottawa Lab at Riverside, Ottawa
IBM Runtime Technologies
+1-613-356-5625
jinch...@ca.ibm.com
