P3
The jdwpgen build tool generates jdwp-protocol.html without a <!doctype html> directive at the beginning.
See
jdk/make/src/classes/build/tools/jdwpgen/RootNode.java
void document(PrintWriter writer) {
writer.println("<html><head><title>" + comment() + "</title></head>");
See
jdk/make/src/classes/build/tools/jdwpgen/RootNode.java
void document(PrintWriter writer) {
writer.println("<html><head><title>" + comment() + "</title></head>");