Remove trailing whitespace in source files

find . -type f -name "*.java" -or -name "*.aj" | \
    xargs perl -p -i -e "s/[ \t]*$//g" {} \;

Issue: SPR-10127

gradle/jdiff/Null.java

@@ -1,6 +1,6 @@
-/** 
+/**
  * This class is used only as a "null" argument for Javadoc when comparing
- * two API files. Javadoc has to have a package, .java or .class file as an 
+ * two API files. Javadoc has to have a package, .java or .class file as an
  * argument, even though JDiff doesn't use it.
  */
 public class Null {