Update Oracle livechecks

Oracle has a publicly documented API for fetching information about Java
releases[1], let's use it.

[1]: https://docs.oracle.com/en-us/iaas/jms/doc/public-api-oracle-java-releases.html

Author: MTCoster

Casks/g/graalvm-jdk.rb

@@ -12,20 +12,15 @@
   homepage "https://www.graalvm.org/"
 
   livecheck do
-    url "https://www.oracle.com/java/technologies/downloads/"
-    regex(%r{/otn_software/java/jdk/(\d+(?:\.\d+)*)\+(\d+)/}i)
-    strategy :page_match do |page, regex|
-      major = page.scan(%r{href=.*?/technologies/javase-jdk(\d+)-doc-downloads\.html}i)
-                  .max_by { |match| Version.new(match[0]) }
-                  &.first
-      next if major.blank?
-
-      download_page = Homebrew::Livecheck::Strategy.page_content(
-        "https://www.oracle.com/java/technologies/javase-jdk#{major}-doc-downloads.html",
-      )
-      next if (download_page_content = download_page[:content]).blank?
-
-      download_page_content.scan(regex).map { |match| "#{match[0]},#{match[1]}" }
+    url "https://java.oraclecloud.com/currentJavaReleases"
+    regex(/(?:jdk[._-])?(\d+(?:\.\d+)*)(?:-\d+)?\+(\d+)/i)
+    strategy :json do |json, regex|
+      json["items"]&.map do |item|
+        match = item["releaseFullVersion"]&.match(regex)
+        next if match.blank?
+
+        "#{match[1]},#{match[2]}"
+      end
     end
   end
 

Casks/g/graalvm-jdk@21.rb

@@ -12,10 +12,13 @@
   homepage "https://www.graalvm.org/"
 
   livecheck do
-    url "https://docs.oracle.com/en/graalvm/jdk/21/docs/release-notes/"
-    regex(/<strong>v?(\d+(?:\.\d+)+)\+(\d+)[ "<]/i)
-    strategy :page_match do |page, regex|
-      page.scan(regex).map { |match| "#{match[0]},#{match[1]}" }
+    url "https://java.oraclecloud.com/currentJavaReleases/#{version.major}"
+    regex(/(?:jdk[._-])?(\d+(?:\.\d+)*)(?:-\d+)?\+(\d+)/i)
+    strategy :json do |json, regex|
+      match = json["releaseFullVersion"]&.match(regex)
+      next if match.blank?
+
+      "#{match[1]},#{match[2]}"
     end
   end
 

Casks/o/oracle-jdk.rb

@@ -11,20 +11,9 @@
   homepage "https://www.oracle.com/java/technologies/downloads/"
 
   livecheck do
-    url :homepage
-    regex(/<li>\s*JDK\s*v?(\d+(?:\.\d+)*)/i)
-    strategy :page_match do |page, regex|
-      major = page.scan(%r{href=.*?/javase/(\d+)u-relnotes\.html}i)
-                  .max_by { |match| Version.new(match[0]) }
-                  &.first
-      next if major.blank?
-
-      release_page = Homebrew::Livecheck::Strategy.page_content(
-        "https://www.oracle.com/java/technologies/javase/#{major}u-relnotes.html",
-      )
-      next if (release_page_content = release_page[:content]).blank?
-
-      release_page_content.scan(regex).map { |match| match[0] }
+    url "https://java.oraclecloud.com/currentJavaReleases"
+    strategy :json do |json|
+      json["items"]&.filter_map { |item| item["releaseVersion"] }
     end
   end
 

Casks/o/oracle-jdk@21.rb

@@ -11,8 +11,10 @@
   homepage "https://www.oracle.com/java/technologies/downloads/"
 
   livecheck do
-    url "https://www.oracle.com/java/technologies/javase/#{version.major}u-relnotes.html"
-    regex(/<li>\s*JDK\s*v?(\d+(?:\.\d+)*)/i)
+    url "https://java.oraclecloud.com/currentJavaReleases/#{version.major}"
+    strategy :json do |json|
+      json["releaseVersion"]
+    end
   end
 
   depends_on macos: ">= :mojave"