The best replacement for seam is spring.

The best alternatives to seam are rated as following:
★★★★★  spring
★★★★  seem
★★  4 seam fastball
★★  weld
★  four seam fastball
★  2 seam fastball
★  wicket
★  grails
★  struts
★  tapestry
★  cdi
★  spring framework
★  richfaces
★  four seam
  2 seam
  hem
  shingle
  corrugated
  seamless
  4 seam
  two seam fastball
  screw down roof
  corner
  smith vantage
  corrugated metal roof
  5v crimp
  no seam
  corrugated metal roofing
  spring roo
  wonder under
  g10

Your alternative for seam is not listed? Suggest!
Speaking about seam, one probably shouldn't forget about jboss.

Other search terms related to seam and their ratings are:
★★★★★ jboss
You have in mind a companion for seam and it is not yet here? Propose!



Google Trends

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seam
spring
seem