We have a simple class with two JavaBean boolean properties notAvailable and available with the assessor methods isNotAvailable and isAvailable.

OGNL runtime fails to method name resolution, for example:

import ognl.Node;
import ognl.Ognl;
import ognl.OgnlContext;


public class BooleanMethodOGNL {

public class BooleanTest {

public boolean isNotAvailable() {
return false;
}

public boolean isAvailable() {
return true;
}
}

public BooleanTest test = new BooleanTest();


public static void main(String[] args) {
OgnlContext context = new OgnlContext();

try {
System.out.println(((Node)Ognl.parseExpression("test.available")).toGetSourceString(context, new BooleanMethodOGNL()));
System.out.println(((Node)Ognl.parseExpression("test.notAvailable")).toGetSourceString(context, new BooleanMethodOGNL()));
} catch (Exception e) {
e.printStackTrace();
}
}

}

For both test the toGetSourceString method returns the same result: ".test.isNotAvailable()"

Failure occurs in the method ognl.OgnlRuntime.getReadMethod(Class, String, int) when tries to resolve the boolean properties access methods.
Probably the wrong if condition is:
                              methods[i].getName().toLowerCase().endsWith(name.toLowerCase())