* jni.cc (_Jv_JNI_PopLocalFrame): Leave loop when `n == NULL'.
(_Jv_JNI_conversion_call): _Jv_JNI_PopLocalFrame will never leave
`locals == NULL'.
(wrap_value): New function.
(_Jv_JNI_CallAnyMethodV): Use it.
(_Jv_JNI_CallAnyMethodA): Likewise.
(_Jv_JNI_GetField): Use wrap_value; removed specialized version.
(_Jv_JNI_GetStaticField): Likewise.
From-SVN: r31736
