upgrade katacode imageid to openjdk:15

tutorials/katacoda/arthas-advanced-cn/index.json

@@ -98,7 +98,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/arthas-advanced-en/index.json

@@ -98,7 +98,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/arthas-basics-cn/index.json

@@ -47,7 +47,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/arthas-basics-en/index.json

@@ -47,7 +47,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-async-jobs-cn/index.json

@@ -57,7 +57,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-async-jobs-en/index.json

@@ -57,7 +57,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-boot-details-cn/index.json

@@ -43,7 +43,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-boot-details-en/index.json

@@ -43,7 +43,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-classloader-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-classloader-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-get-spring-context-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-get-spring-context-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-http-401-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-http-401-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-http-404-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-http-404-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-http-api-cn/index.json

@@ -56,7 +56,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-http-api-en/index.json

@@ -56,7 +56,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-jad-mc-redefine-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-jad-mc-redefine-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-logger-config-problem-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-logger-config-problem-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-ognl-update-logger-level-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-ognl-update-logger-level-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-save-log-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-save-log-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-thread-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-thread-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-watch-method-exception-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-watch-method-exception-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-web-console-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/case-web-console-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-cat-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-cat-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-classloader-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-classloader-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-cls-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-cls-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-dashboard-cn/index.json

@@ -31,7 +31,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-dashboard-en/index.json

@@ -31,7 +31,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-dump-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-dump-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-echo-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-echo-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-getstatic-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-getstatic-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-grep-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-grep-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-heapdump-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-heapdump-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-help-cn/index.json

@@ -31,7 +31,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-help-en/index.json

@@ -31,7 +31,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-history-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-history-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-jad-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-jad-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-jvm-cn/index.json

@@ -37,7 +37,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-jvm-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-keymap-cn/index.json

@@ -39,7 +39,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-keymap-en/index.json

@@ -39,7 +39,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-logger-cn/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-logger-en/index.json

@@ -39,7 +39,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-mbean-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-mbean-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-mc-redefine-cn/index.json

@@ -47,7 +47,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-mc-redefine-en/index.json

@@ -47,7 +47,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-monitor-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-monitor-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-ognl-cn/index.json

@@ -47,7 +47,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-ognl-en/index.json

@@ -47,7 +47,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-options-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-options-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-perfcounter-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-perfcounter-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-plaintext-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-plaintext-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-profiler-cn/index.json

@@ -36,7 +36,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-profiler-en/index.json

@@ -36,7 +36,7 @@
     ]
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-pwd-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-pwd-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-quit-stop-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-quit-stop-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-reset-cn/index.json

@@ -39,7 +39,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-reset-en/index.json

@@ -39,7 +39,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sc-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sc-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-session-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-session-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sm-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sm-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-stack-cn/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-stack-en/index.json

@@ -29,7 +29,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sysenv-cn/index.json

@@ -45,7 +45,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sysenv-en/index.json

@@ -45,7 +45,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sysprop-cn/index.json

@@ -49,7 +49,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-sysprop-en/index.json

@@ -49,7 +49,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-tee-cn/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-tee-en/index.json

@@ -27,7 +27,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-thread-cn/index.json

@@ -37,7 +37,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }

tutorials/katacoda/command-thread-en/index.json

@@ -37,7 +37,7 @@
     "uilayout": "terminal"
   },
   "backend": {
-    "imageid": "java",
+    "imageid": "openjdk:15",
     "environmentsprotocol": "http"
   }
 }