src/main/java/js/servlet/RequestPreprocessor.java
private static boolean startsWith(String requestPath, String pathComponent) {
		if (requestPath.charAt(0) != '/') {
			return false;
		}
		int i = 1;
		for (int j = 0; i < requestPath.length(); ++i, ++j) {
			if (requestPath.charAt(i) == '/') {
				return j == pathComponent.length();
			}
			if (j == pathComponent.length()) {
				return false;
			}
			if (Character.toLowerCase(requestPath.charAt(i)) != Character.toLowerCase(pathComponent.charAt(j))) {
				return false;
			}
		}
		return false;
	}
private static boolean startsWith(String requestPath, String pathComponent) {
		if (requestPath.charAt(0) != '/') {
			return false;
		}
		int i = 1;
		for (int j = 0; i < requestPath.length(); ++i, ++j) {
			if (requestPath.charAt(i) == '/') {
				return j == pathComponent.length();
			}
			if (j == pathComponent.length()) {
				return false;
			}
			if (Character.toLowerCase(requestPath.charAt(i)) != Character.toLowerCase(pathComponent.charAt(j))) {
				return false;
			}
		}
		return false;
	}
private static boolean startsWith ( String requestPath , String pathComponent ) { if ( requestPath . charAt ( 0 ) != ' ' ) { return false ; } int i = 1 ; for ( int j = 0 ; i < requestPath . length ( ) ; ++ i , ++ j ) { if ( requestPath . charAt ( i ) == ' ' ) { return j == pathComponent . length ( ) ; } if ( j == pathComponent . length ( ) ) { return false ; } if ( Character . toLowerCase ( requestPath . charAt ( i ) ) != Character . toLowerCase ( pathComponent . charAt ( j ) ) ) { return false ; } } return false ; }
Test if request path starts with path component. This predicate returns true if first path component from given request
path equals requested path component. Comparison is not case sensitive. Request path should start with path separator,
otherwise this predicate returns false.

@param requestPath request path to test,
@param pathComponent path component that is compared with first path component from request path.
@return true if request path starts with path component.
Test if request path starts with path component . This predicate returns true if first path component from given request path equals requested path component . Comparison is not case sensitive . Request path should start with path separator otherwise this predicate returns false .