jdt for java still broken on Windows

[AdnoC]

Result from CocInfo

## versions

vim version: NVIM v0.5.0-828-g0a95549d6
node version: v10.16.1
coc.nvim version: 0.0.80-7642d233d6
coc.nvim directory: C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim
term: undefined
platform: win32

Describe the bug

bf94769 does not fix the jump-to-definition errors on Windows for coc-java (coc-java issue).

Reproduce the bug

• Create file mini.vim with：

  set nocompatible
  set runtimepath^=/path/to/coc.nvim
  filetype plugin indent on
  syntax on
  set hidden

• Start (neo)vim with command: vim -u mini.vim

• Create a java project file (pom.xml)

    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
     
      <groupId>com.mycompany.app</groupId>
      <artifactId>my-app</artifactId>
      <version>1.0-SNAPSHOT</version>

• Make a basic java file in src/main

// src/main/example.java
public class Example {
  private String myString;
}

• Install coc-java :CocInstall coc-java

• Use jump-to-definition on a non-local type (such as String)

you will get an error:

2020-12-21T11:21:20.195 ERROR (pid:9372) [node-client] - request error on "nvim_call_function" [ 'coc#util#jump',
  [ 'edit',
    '?jdt://contents/java.base/java.lang/String.class?=selenium/C:%5C/Program%20Files%5C/ojdkbuild%5C/java-11-openjdk-11.0.6-1%5C/lib%5C/jrt-fs.jar%60java.base=/maven.pomderived=/true=/=/javadoc_location=/https:%5C/%5C/docs.oracle.com%5C/en%5C/java%5C/javase%5C/11%5C/docs%5C/api%5C/=/%3Cjava.lang(String.class',
    [ 124, 19 ] ] ] Vim(edit):E480: No match: \?jdt://contents/java.base/java.lang/String.class\?=selenium/C:%5C/Program%20Files%5C/ojdkbuild%5C/java-11-openjdk-11.0.6-1%5C/lib%5C/jrt-fs.jar%60java.base=/maven.pomderived=/true=/=/javadoc_location=/https:%5C/%5C/docs.oracle.com%5C/en%5C/java%5C/javase%5C/11%5C/docs%5C/api%5C/=/%3Cjava.lang(String.class Error
    at NeovimClient.request (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:15401:21)
    at NeovimClient.call (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:16294:21)
    at Workspace.jumpTo (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:32546:33)
    at Handler.handleLocations (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:95213:39)
    at Handler.gotoDefinition (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:94674:20)
2020-12-21T11:21:20.196 ERROR (pid:9372) [attach] - Notification error: jumpDefinition [] Error
    at NeovimClient.request (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:15401:21)
    at NeovimClient.call (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:16294:21)
    at Workspace.jumpTo (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:32546:33)
    at Handler.handleLocations (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:95213:39)
    at Handler.gotoDefinition (C:\Users\Adam Cutler\AppData\Local\nvim\bundle\coc.nvim\build\index.js:94674:20)

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