Disable Java requirement versions on Big Sur

It would be possible to work around this but I'm not convinced it's
worth it given https://github.com/Homebrew/homebrew-core/issues/63290

Fixes #9194

Library/Homebrew/extend/os/mac/requirements/java_requirement.rb

@@ -26,6 +26,13 @@ class JavaRequirement < Requirement
   end
 
   def java_home_cmd
+    # TODO: enable for all macOS versions and Linux on next minor release
+    #       but --version is broken on Big Sur today.
+    if @version && MacOS.version >= :big_sur
+      odisabled "depends_on :java",
+                '"depends_on "openjdk@11", "depends_on "openjdk@8" or "depends_on "openjdk"'
+    end
+
     return unless File.executable?("/usr/libexec/java_home")
 
     args = %w[--failfast]

Library/Homebrew/test/language/java_spec.rb

@@ -5,9 +5,11 @@ require "language/java"
 
 describe Language::Java do
   describe "::java_home" do
-    it "returns valid JAVA_HOME if version is specified", :needs_java do
-      java_home = described_class.java_home("1.6+")
-      expect(java_home/"bin/java").to be_an_executable
+    if !OS.mac? || MacOS.version < :big_sur
+      it "returns valid JAVA_HOME if version is specified", :needs_java do
+        java_home = described_class.java_home("1.6+")
+        expect(java_home/"bin/java").to be_an_executable
+      end
     end
 
     it "returns valid JAVA_HOME if version is not specified", :needs_java do

Library/Homebrew/test/requirements/java_requirement_spec.rb

@@ -68,9 +68,11 @@ describe JavaRequirement do
   describe "#satisfied?" do
     subject(:requirement) { described_class.new(%w[1.8]) }
 
-    it "returns false if no `java` executable can be found" do
-      allow(File).to receive(:executable?).and_return(false)
-      expect(requirement).not_to be_satisfied
+    if !OS.mac? || MacOS.version < :big_sur
+      it "returns false if no `java` executable can be found" do
+        allow(File).to receive(:executable?).and_return(false)
+        expect(requirement).not_to be_satisfied
+      end
     end
 
     it "returns true if #preferred_java returns a path" do

Library/Homebrew/test/spec_helper.rb

@@ -110,7 +110,7 @@ RSpec.configure do |config|
 
   config.before(:each, :needs_java) do
     java_installed = if OS.mac?
-      Utils.popen_read("/usr/libexec/java_home", "--failfast", "--version", "1.0+")
+      Utils.popen_read("/usr/libexec/java_home", "--failfast")
       $CHILD_STATUS.success?
     else
       which("java")