Unable to use a Class located in default package in OGNL expressions

[jan-krakora]

MyBatis version

3.5.3

Steps to reproduce

Create a class Ognl in default (root) package with a public static method
public static boolean test(Object o) { return true; }

then use it in an OGNL expression in an mapper like
<if test="@Ognl@test(myParam)">...</if>

Expected result

Application should not fail

Actual result

Application crashes with stack trace:

...
Caused by: java.lang.ClassNotFoundException: Cannot find class: java.lang.Ognl
	at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:200)
	at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:89)
	at org.apache.ibatis.io.Resources.classForName(Resources.java:261)
	at org.apache.ibatis.scripting.xmltags.OgnlClassResolver.toClassForName(OgnlClassResolver.java:34)
	at org.apache.ibatis.ognl.DefaultClassResolver.classForName(DefaultClassResolver.java:58)
	at org.apache.ibatis.ognl.OgnlRuntime.classForName(OgnlRuntime.java:1167)
	at org.apache.ibatis.ognl.OgnlRuntime.callStaticMethod(OgnlRuntime.java:1545)

See org.apache.ibatis.ognl.DefaultClassResolver

Any class that is searched and its className is without '.' is always prefixed with 'java.lang.'. This behavior was not in MyBatis 3.4.6.

[harawata]

Thank you for the report, @jan-krakora ,

You really should avoid using the default package.
Still, OGNL probably should handle it properly, so I have sent a PR to OGNL [1].

[1] MyBatis simply includes OGNL source using maven shade plugin.

[harawata]

This should be fixed in the latest 3.5.4 SNAPSHOT.
Please let us know if there is any issue.