Use explicit scoping instead of the default package private level

[alexgyori]

Codacy detected an issue:

Message: Use explicit scoping instead of the default package private level

Occurred on:

• Commit: 8fb0300
• File: nondex-common/src/main/java/java/util/HashIteratorShuffler.java
• LineNum: 36
• Code: HashIterator hashIter;

Currently on:

• Commit: d564cd0
• File: nondex-core/src/main/java/java/util/HashIteratorShuffler.java
• LineNum: 36