Remove javassist dependency.

[aadrian]

It looks like that starting from OGNL 2.7 a dependency on javassist was introduced.

Many projects still use OGNL 2.6.9 but won't upgrade to 2.7.x or 3.0 (because of this too).

Please remove this dependency if it's possible.

[lukaszlenart]

But the scope is "provided", so it isn't a problem

[aadrian]

But the scope is "provided", so it isn't a problem

It looks like this is still a problem. Trying to use OGNL without javassist gives:
java.lang.IllegalArgumentException: Javassist library is missing in
classpath! Please add missed dependency!
at ognl.OgnlRuntime.(OgnlRuntime.java:165)
at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
at ognl.SimpleNode.setValue(SimpleNode.java:301)
at ognl.Ognl.setValue(Ognl.java:737)
.....

[lukaszlenart]

I think to put it back as OGNL fully depends on Javassist, I think it will be very hard to fully remove it now.