NPE from MrBean when get() or set() is though as property #42
Description
java.lang.StringIndexOutOfBoundsException: String index out of range: 0
at java.lang.String.charAt(String.java:658)
at com.fasterxml.jackson.module.mrbean.BeanBuilder.decap(BeanBuilder.java:350)
at com.fasterxml.jackson.module.mrbean.BeanBuilder.getPropertyName(BeanBuilder.java:192)
at com.fasterxml.jackson.module.mrbean.BeanBuilder.addGetter(BeanBuilder.java:209)
at com.fasterxml.jackson.module.mrbean.BeanBuilder.implement(BeanBuilder.java:87)
I'm getting an NPE from decap function that assumes strings to be non-empty as property names should be. The addGetter (and addSetter) should check that methodName is either more than 3 or 2 chars long depending on the prefix so that cases like introducing a java.util.function.Supplier also work
String methodName = m.getName();
int argCount = m.getParameterTypes().length;
if (argCount == 0) { // getter?
if (methodName.startsWith("get") || methodName.startsWith("is") && returnsBoolean(m)) {
addGetter(ctxt, m);
continue;
}
} else if (argCount == 1 && methodName.startsWith("set")) {
addSetter(ctxt, m);
continue;
}