elharo opened a new issue, #358:
URL: https://github.com/apache/maven-filtering/issues/358
In src/main/java/org/apache/maven/shared/filtering/PropertyUtils.java, line
184:
String v = p.getProperty(k);
// ...
while ((idx = v.indexOf("${")) >= 0) {
If the key k does not exist in properties p, v is null and v.indexOf("${")
throws NullPointerException. The calling code (lines 101104 of
loadPropertyFile) iterates over fileProps.keySet() and passes each key with
combinedProps which should contain that key. However, the recursive resolution
at lines 199201 could extract a key name not present in combinedProps though
that path is guarded by null checks (lines 221222). The initial call is safe in
practice, but the method lacks a null guard for v at the entry point.
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