The section "Java XML Digital Signature API Specification" [1] has been removed from the JDK 10 developer guides. However, the Javadoc API documentation for the classes TransformService [2] and XMLSignatureFactory [3] still link to a section in the XML Digital Signature API Specification, "Service Providers" [4].

The normative sections of the "Java XML Digital Signature API Specification" should be copied into the java.xml.crypto javadocs so that the external links can be replaced/removed.

Currently, the JDK 11 docs point back to the JDK 9 docs.

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[1] https://docs.oracle.com/javase/9/security/java-xml-digital-signature-api-specification1.htm
[2] https://docs.oracle.com/en/java/javase/11/docs/api/java.xml.crypto/javax/xml/crypto/dsig/TransformService.html
[3] https://docs.oracle.com/en/java/javase/11/docs/api/java.xml.crypto/javax/xml/crypto/dsig/XMLSignatureFactory.html
[4] https://www.oracle.com/pls/topic/lookup?ctx=javase11&id=security_guide_xmldsig_provider