https://issues.apache.org/bugzilla/show_bug.cgi?id=56638
Bug ID: 56638
Summary: EL defineFunction does not support empty function
names
Product: Tomcat 8
Version: trunk
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: EL
Assignee: [email protected]
Reporter: [email protected]
Per the javadoc at
http://docs.oracle.com/javaee/7/api/javax/el/ELProcessor.html it specifies that
defineFunction(String prefix, String function, String className, String method)
should use the method name as function name when the function argument is empty
("")
The current code stores function names as ":" so it cannot locate custom
functions like the following ${length(obj)} which would be queried for as
":length"
Replace code:
if (method.getName().equals(sig.getName())) {
if (sig.getParamTypeNames() == null) {
With:
if (method.getName().equals(sig.getName())) {
if (function.length() == 0)
function = method.getName();
if (sig.getParamTypeNames() == null) {
The two new lines of code ensure that when function is blank it the method name
will be used as the function name
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