no warnings in com.ibm.wala.cast
no warnings in com.ibm.wala.cast.java
remove warnings in com.ibm.wala.core
remove warnings from com.ibm.wala.util
remove warnings from com.ibm.wala.shrike
remove warnings from com.ibm.wala.ide
fix some warnings and remove absolute path in build configuration for com.ibm.wala.dalvik
remove warnings from com.ibm.wala.dalvik