vimil added a comment - 2016-04-27 05:15 - edited Since you are using a slashy string, you will have to escape the slash. Try the below script to fix the issue. import org.boon.Boon; def jsonEditorOptions = Boon.fromJson(/{ disable_edit_json: false , disable_properties: false , no_additional_properties: false , disable_collapse: true , disable_array_add: false , disable_array_delete: false , disable_array_reorder: true , theme: "bootstrap3" , iconlib: "bootstrap3" , schema: { "title" : "SVN Permission for Branch: xxxxx" , "type" : "array" , "format" : "table" , "uniqueItems" : true , "items" : { "type" : "object" , "title" : "User" , "properties" : { "Username" : { "type" : "string" , "propertyOrder" : 1 }, "Permission" : { "type" : "string" , "propertyOrder" : 2, " enum " : [ "RO" , "RW" , "NO" , "" ], " default " : "" }, "File" : { "type" : "string" , "propertyOrder" : 3, "media" : { "binaryEncoding" : "base64" , "type" : "image\/png" }, "options" : { "include_filename" : true } } } } } startval: [ { "Username" : "user2" , "Permission" : "RW" }, { "Username" : "user3" , "Permission" : "RW" }, { "Username" : "user4" , "Permission" : "RW" }, ] }/); return jsonEditorOptions;

vimil added a comment - 2016-04-27 05:19 there is a syntax error in the groovy script, correcting that fixes the issue

Rick Liu added a comment - 2016-04-27 20:09 Thank you vimil~ after escape the slash, now the file upload shows up correctly. But I got 2 other problems: 1. There's no corresponding file created in WORKSPACE. I guess for this one, I need to manually decode BASE64 data to restore the file. 2. It seems easily overflow the Jenkins argument list with a small 2MB text file. FATAL: command execution failed java.io.IOException: Cannot run program "/bin/bash" (in directory "/home/devops/jenkins_slave/workspace/Test/test-JSON_UI"): error=7, Argument list too long I'll create another ticket for this one.

Rick Liu added a comment - 2016-04-28 02:01 Thank You vimil~ I created JENKINS-34478 for question #2 above. I have another question regarding to JSON's File option: "File": { "type": "string", "propertyOrder": 3, "media": { "binaryEncoding": "base64", "type": "image\/png" } , "options": { "include_filename": true } } Do I have to predefine "binaryEncoding" and "type"? If I want to allow user to upload either text files, or tarball files, or image files, then what should I put?