Bug 121546 Cannot validate Javadoc URL starting with https
3.2 M4 On the Javadoc location properties page is possible to define a Javadoc URL. There is also a button to validate the specified location. If the URL starts with https a message pops up saying "Unable to validate location". Is this by design or is https not supported?
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavadocConfigurationBlock.java
fBrowseArchivePath.setEnabled(!isURL && fArchiveStatus.isOK() && fArchiveField.getText().length() > 0);
		}
		fContext.statusChanged(status);
	}
	private String chooseArchivePath() {
		final String[] res= new String[] { null };
		BusyIndicator.showWhile(fShell.getDisplay(), new Runnable() {
			public void run() {
				res[0]= internalChooseArchivePath();
			}
		});
		return res[0];
	}
	
	private String encodeExclamationMarks(String str) {
		StringBuffer buf= new StringBuffer(str.length());
		for (int i= 0; i < str.length(); i++) {
			char ch= str.charAt(i);
			if (ch == '!') {
				buf.append("%21"); 
			} else {
				buf.append(ch);
			}
		}
		return buf.toString();
	}
	
	private String decodeExclamationMarks(String str) {
		StringBuffer buf= new StringBuffer(str.length());
		int length= str.length();