The Chicago Blackhawks are stockpiling draft picks and freeing up cap space.
The Blackhawks received the No. 51 and No. 117 overall picks in the 2013 draft and a fourth-round pick in the 2014 draft in exchange for Bolland. The Jets sent the 74th and 134th picks in 2013 in return for Frolik.
Bolland had seven goals, seven assists and a minus-7 rating in 35 regular-season games for the Blackhawks this season. He had three goals, three assists and a minus-2 rating in 18 playoff games.
"Thank you for everything Chicago! Such amazing memories," he wrote on Twitter. "I look forward to playing in front of my home fans wearing the Maple Leaf."
He missed the entire first-round series versus Minnesota with an injury.
Bolland, who was drafted by the Blackhawks in 2004, has one season remaining on his contract and is set to make $3.375 million next season.
Frolik was acquired by the Blackhawks through a trade with the Florida Panthers in 2011, and also has one year remaining on his contract. He is set to make $1.9 million next season. Frolik has 151 points in 349 career games with Chicago and Florida.
The Blackhawks now have $13,545,705 of cap space for the 2013-14 season, according to CapGeek.com.
Information from The Associated Press was used in this report.