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class method

Gem.java_platform?

() -> bool

java_platform?

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems.rb, line 1108
def self.java_platform?
  RUBY_PLATFORM == "java"
end

Is this a java platform?

See also .install .latest_rubygems_version .host= .latest_spec_for also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0