Request edit failed with message: invalid json response body at http://localhost:8081/api/v1/edit?modeluri=superbrewer3000.coffee reason: Unexpected end of JSON input Running the latest coffee editor

[Deel96]

Hi,
when I try to run the coffee editor example locally via docker

Steps to reproduce

docker build -t "coffee-editor:latest" .
docker run -it -p 0.0.0.0:3000:3000 coffee-editor:latest yarn start
Open Browser at localhost:3000/#/coffee-editor/backend/examples/SuperBrewer3000

I also get the same errors when building locally with commit hash c75bf3aca1e17936484f75bbc328ab6ad6c904b5 and when trying the online demo

When I change the name of the SuperBrewer3000 in the coffee file I get the errors listed below:

Browser:

Server logs from starting the server

``` user@pc:~/GIT/coffee-editor$ docker run -it -p 0.0.0.0:3000:3000 coffee-editor:latest yarn start yarn run v1.22.19 $ export WF_CONFIG_LSP=localhost:5017 && theia start --WORKFLOW_NOTATION_LSP=5008 --hostname=0.0.0.0 --port=3000 --root-dir=../../backend/examples/SuperBrewer3000 --plugins=local-dir:./plugins Configuring to accept webviews on '^.+\.webview\..+$' hostname. root INFO Configuration directory URI: 'file:///home/theia/.theia' root WARN Failed to resolve module: filenamify root WARN Backend WebviewBackendSecurityWarnings.initialize is slow, took: 101.4 ms root WARN Backend FileDownloadEndpoint.configure is slow, took: 101.4 ms root WARN Backend MetricsBackendApplicationContribution.onStart is slow, took: 100.9 ms root INFO [WorkflowDSL] Spawn Server Process from /coffee-editor/web/coffee-server/server/lsp/x86_64/plugins/org.eclipse.equinox.launcher_1.6.400.v20210924-0641.jar root WARN Backend WorkflowAnalysisServer.initialize is slow, took: 58.5 ms root INFO Theia app listening on http://0.0.0.0:3000. root WARN The local plugin referenced by local-dir:/home/theia/.theia/plugins does not exist. root WARN The local plugin referenced by local-dir:/home/theia/.theia/extensions does not exist. root INFO [coffee-workflow-analyzer-editor-0.7.0.vsix]: trying to decompress into "/tmp/vscode-unpacked/coffee-workflow-analyzer-editor-0.7.0.vsix"... root INFO ModelServerBackendContribution: Starting modelserver from jar root INFO [coffee-workflow-analyzer-editor-0.7.0.vsix]: decompressed root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/cdt-gdb-vscode root INFO Resolved "cdt-gdb-vscode" to a VS Code extension "[email protected]" with engines: { vscode: '^1.26.0' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /tmp/vscode-unpacked/coffee-workflow-analyzer-editor-0.7.0.vsix root INFO Resolved "coffee-workflow-analyzer-editor-0.7.0.vsix" to a VS Code extension "[email protected]" with engines: { vscode: '^1.43.0' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/java-debug root INFO Resolved "java-debug" to a VS Code extension "[email protected]" with engines: { vscode: '^1.32.0' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/java-lsp root INFO Resolved "java-lsp" to a VS Code extension "[email protected]" with engines: { vscode: '^1.36.0' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/twxs.cmake root INFO Resolved "twxs.cmake" to a VS Code extension "[email protected]" with engines: { vscode: '^1.10.0' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/vscode-builtin-cpp root INFO Resolved "vscode-builtin-cpp" to a VS Code extension "[email protected]" with engines: { vscode: '*' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/vscode-builtin-java root INFO Resolved "vscode-builtin-java" to a VS Code extension "[email protected]" with engines: { vscode: '*' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/vscode-clangd root INFO Resolved "vscode-clangd" to a VS Code extension "[email protected]" with engines: { vscode: '^1.41.0' } root INFO PluginTheiaDirectoryHandler: accepting plugin with path /coffee-editor/web/browser-app/plugins/vscode-cmake root INFO Resolved "vscode-cmake" to a VS Code extension "[email protected]" with engines: { vscode: '^1.30.0' } root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/cdt-gdb-vscode/extension/out/extension" root INFO Deploying backend plugin "[email protected]" from "/tmp/vscode-unpacked/coffee-workflow-analyzer-editor-0.7.0.vsix/extension/out/extension.js" root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/java-debug/extension/dist/extension" root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/java-lsp/extension/dist/extension" root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/twxs.cmake/extension/out/extension" root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/vscode-builtin-cpp/extension" root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/vscode-builtin-java/extension" root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/vscode-clangd/extension/out/src/extension" root INFO Deploying backend plugin "[email protected]" from "/coffee-editor/web/browser-app/plugins/vscode-cmake/extension/dist/main" root INFO Deploy plugins list took: 1184.9 ms root INFO Using Git [2.17.1] from the PATH. (/usr/bin/git) root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][ms-vscode.cmake-tools]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][llvm-vs-code-extensions.vscode-clangd]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][vscode.java]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][vscode.cpp]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][twxs.cmake]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][redhat.java]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][vscjava.vscode-java-debug]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][eclipse-emfcloud.coffee-workflow-analyzer-editor]: Disconnected. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][eclipse-cdt.cdt-gdb-vscode]: Disconnected. root ERROR [JsonrpcGLSPClient] Connection to server is erroring. Shutting down server. [ {} ] root ERROR [JsonrpcGLSPClient] Connection to server got closed. Server will not be restarted. [] root ERROR [object Object] root INFO Checking whether '--no-optional-locks' can be used with the current Git executable. Minimum required version is '2.15.0'. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb] Waiting for backend deployment took: 304.0 ms [Finished 487.788 s after frontend start] root INFO '--no-optional-locks' is a valid Git option for the current Git version: '2.17.1'. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb] Sync of 0 plugins took: 0.0 ms [Finished 487.789 s after frontend start] root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb] Load contributions of 0 plugins took: 0.0 ms [Finished 487.789 s after frontend start] root INFO [hosted-plugin: 156] PLUGIN_HOST(156) starting instance root INFO [hosted-plugin: 156] PLUGIN_HOST(156): PluginManagerExtImpl/init() root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] Debugger contribution has been registered: gdb root INFO [hosted-plugin: 156] Debugger contribution has been registered: gdbtarget root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] Debugger contribution has been registered: java root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] PLUGIN_HOST(156): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init) root INFO [hosted-plugin: 156] PLUGIN_HOST(156): PluginManagerExtImpl/loadPlugin(/tmp/vscode-unpacked/coffee-workflow-analyzer-editor-0.7.0.vsix/extension/out/extension.js) root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][eclipse-cdt.cdt-gdb-vscode]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][eclipse-emfcloud.coffee-workflow-analyzer-editor]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][vscjava.vscode-java-debug]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][redhat.java]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][twxs.cmake]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][vscode.cpp]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][vscode.java]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][llvm-vs-code-extensions.vscode-clangd]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb][ms-vscode.cmake-tools]: Started plugin. root INFO [84deffa9-9389-4fb7-81e1-4ff5c9147fbb] Start of 9 plugins took: 916.0 ms [Finished 488.774 s after frontend start] root INFO [hosted-plugin: 156] PLUGIN_HOST(156): PluginManagerExtImpl/loadPlugin(/coffee-editor/web/browser-app/plugins/java-lsp/extension/dist/extension) root INFO [hosted-plugin: 156] { message: 'Starting Java server with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java --add-modules=ALL-SYSTEM --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED -Declipse.application=org.eclipse.jdt.ls.core.id1 -Dosgi.bundles.defaultStartLevel=4 -Declipse.product=org.eclipse.jdt.ls.core.product -Dfile.encoding=utf8 -noverify -Xmx1G -XX:+UseG1GC -XX:+UseStringDeduplication -jar /coffee-editor/web/browser-app/plugins/java-lsp/extension/server/plugins/org.eclipse.equinox.launcher_1.5.500.v20190715-1310.jar -configuration /coffee-editor/web/browser-app/plugins/java-lsp/extension/server/config_linux -data /home/theia/.theia/workspace-storage/cf6a410dfad3462963c5e9baadb4d188/redhat.java/jdt_ws', level: 'info', timestamp: '2022-08-02 15:53:23.365' } root INFO WorkflowGLSPServerContribution: 1 [main] INFO org.eclipse.glsp.server.launch.SocketGLSPServerLauncher - The GLSP server is ready to accept new client requests on port: 5008

root INFO WorkflowGLSPServerContribution: [GLSP-Server]:Startup completed

root ERROR ModelServerBackendContribution: [main] INFO io.javalin.Javalin -
__ __ _ __ __
/ /____ _ _ __ ____ _ / /()___ / // /
__ / // __ /| | / // __ // // // __ \ / // /_
/ // // // / | |/ // // // // // / / / /__ /
_/ _,/ |/ _,/////// // //

      https://javalin.io/documentation

root ERROR ModelServerBackendContribution:

root ERROR ModelServerBackendContribution: 2022-08-02 15:53:26.020:INFO::main: Logging initialized @6137ms to org.eclipse.jetty.util.log.StdErrLog
root ERROR ModelServerBackendContribution:

root ERROR ModelServerBackendContribution: [main] INFO io.javalin.Javalin - Starting Javalin ...
root ERROR ModelServerBackendContribution:

root ERROR ModelServerBackendContribution: [main] INFO io.javalin.Javalin - You are running Javalin 4.3.0 (released January 13, 2022. Your Javalin version is 200 days old. Consider checking for a newer version.).
root ERROR ModelServerBackendContribution:

root ERROR ModelServerBackendContribution: [main] INFO io.javalin.Javalin - Listening on http://localhost:8081/

root ERROR ModelServerBackendContribution: [main] INFO io.javalin.Javalin - Javalin started in 411ms \o/

root INFO WorkflowLSPServerLauncher: [WorkflowDSL] Ready to accept client requests

root WARN Frontend CommonFrontendContribution.configure is slow, took: 174.0 ms
root WARN Frontend EditorNavigationContribution.onStart is slow, took: 821.0 ms
root INFO Changed application state from 'init' to 'started_contributions'.
root INFO Changed application state from 'started_contributions' to 'attached_shell'.
root INFO >>> Restoring the layout state...
root INFO <<< Nothing to restore.
root INFO [hosted-plugin: 429] PLUGIN_HOST(429) starting instance
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7] Waiting for backend deployment took: 490.0 ms [Finished 5.000 s after frontend start]
root INFO Changed application state from 'attached_shell' to 'initialized_layout'.
root INFO Finished loading frontend application after 5.438 seconds
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7] Sync of 9 plugins took: 497.0 ms [Finished 5.497 s after frontend start]
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][eclipse-cdt.cdt-gdb-vscode]: Loaded contributions.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][eclipse-emfcloud.coffee-workflow-analyzer-editor]: Loaded contributions.
root WARN 'vscjava.vscode-java-debug' plugin contributes items to a menu with invalid identifier: debug/toolBar
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][vscjava.vscode-java-debug]: Loaded contributions.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][redhat.java]: Loaded contributions.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][twxs.cmake]: Loaded contributions.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][vscode.cpp]: Loaded contributions.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][vscode.java]: Loaded contributions.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][llvm-vs-code-extensions.vscode-clangd]: Loaded contributions.
root ERROR Preference name collision detected in the schema for property: cmake.cmakePath
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: editor/title/context
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: editor/title/context
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: touchBar
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: touchBar
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: touchBar
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: touchBar
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: touchBar
root WARN 'ms-vscode.cmake-tools' plugin contributes items to a menu with invalid identifier: touchBar
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][ms-vscode.cmake-tools]: Loaded contributions.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7] Load contributions of 9 plugins took: 188.0 ms [Finished 5.685 s after frontend start]
root ERROR DefaultJsonSchemaContribution.registerSchemas is taking more than 500.0 ms, new schemas are ignored.
root WARN 'cpp' language is remapped from 'source.cpp.embedded.macro' to 'source.cpp' scope
root WARN a registered grammar configuration for 'cpp' language is overridden
root INFO WorkflowGLSPServerContribution: 35420 [Thread-12] INFO org.eclipse.glsp.server.launch.SocketGLSPServerLauncher - Starting GLSP server connection for client /127.0.0.1:44678

root INFO Changed application state from 'initialized_layout' to 'ready'.
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): PluginManagerExtImpl/init()
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] Debugger contribution has been registered: gdb
root INFO [hosted-plugin: 429] Debugger contribution has been registered: gdbtarget
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] Debugger contribution has been registered: java
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): initializing([email protected] with /coffee-editor/web/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init)
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][eclipse-cdt.cdt-gdb-vscode]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][eclipse-emfcloud.coffee-workflow-analyzer-editor]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][vscjava.vscode-java-debug]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][redhat.java]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][twxs.cmake]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][vscode.cpp]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][vscode.java]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][llvm-vs-code-extensions.vscode-clangd]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7][ms-vscode.cmake-tools]: Started plugin.
root INFO [cab553db-b4ad-4f37-b5a4-22891e6be3e7] Start of 9 plugins took: 1007.0 ms [Finished 6.732 s after frontend start]
root INFO [hosted-plugin: 429] PLUGIN_HOST(429): PluginManagerExtImpl/loadPlugin(/coffee-editor/web/browser-app/plugins/java-lsp/extension/dist/extension)
root INFO [hosted-plugin: 429] {
message: 'Starting Java server with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java --add-modules=ALL-SYSTEM --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED -Declipse.application=org.eclipse.jdt.ls.core.id1 -Dosgi.bundles.defaultStartLevel=4 -Declipse.product=org.eclipse.jdt.ls.core.product -Dfile.encoding=utf8 -noverify -Xmx1G -XX:+UseG1GC -XX:+UseStringDeduplication -jar /coffee-editor/web/browser-app/plugins/java-lsp/extension/server/plugins/org.eclipse.equinox.launcher_1.5.500.v20190715-1310.jar -configuration /coffee-editor/web/browser-app/plugins/java-lsp/extension/server/config_linux -data /home/theia/.theia/workspace-storage/cf6a410dfad3462963c5e9baadb4d188/redhat.java/jdt_ws',
level: 'info',
timestamp: '2022-08-02 15:54:00.711'
}
root INFO ModelServerBackendContribution: 15:54:14.660 [JettyServerThreadPool-44] ERROR org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController - Execution Exception
java.util.concurrent.ExecutionException: org.eclipse.emf.common.util.BasicEList$BasicIndexOutOfBoundsException: index=0, size=0
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:?]
at java.util.concurrent.FutureTask.get(FutureTask.java:205) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController.waitComplete(SingleThreadModelController.java:225) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController.runAndWait(SingleThreadModelController.java:219) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController.executeCommand(SingleThreadModelController.java:165) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.ModelServerRoutingDelegate.lambda$11(ModelServerRoutingDelegate.java:167) ~[?:?]
at java.util.Optional.ifPresentOrElse(Optional.java:201) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.ModelURIConverter.withResolvedModelURI(ModelURIConverter.java:99) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.ModelURIConverter.withResolvedModelURI(ModelURIConverter.java:153) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.ModelServerRoutingDelegate.executeCommand(ModelServerRoutingDelegate.java:167) ~[?:?]
at io.javalin.core.security.SecurityUtil.noopAccessManager(SecurityUtil.kt:20) ~[?:?]
at io.javalin.http.JavalinServlet.addHandler$lambda-5(JavalinServlet.kt:115) ~[?:?]
at io.javalin.http.JavalinServlet$service$tryBeforeAndEndpointHandlers$1.invoke(JavalinServlet.kt:44) ~[?:?]
at io.javalin.http.JavalinServlet$service$tryBeforeAndEndpointHandlers$1.invoke(JavalinServlet.kt:39) ~[?:?]
at io.javalin.http.JavalinServlet.service$tryWithExceptionMapper(JavalinServlet.kt:131) ~[?:?]
at io.javalin.http.JavalinServlet.service$tryBeforeAndEndpointHandlers(JavalinServlet.kt:39) ~[?:?]
at io.javalin.http.JavalinServlet.service(JavalinServlet.kt:87) ~[?:?]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[javax.servlet_3.1.0.v201410161800.jar:3.1.0]
at io.javalin.jetty.JavalinJettyServlet.service(JavalinJettyServlet.kt:58) ~[?:?]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[javax.servlet_3.1.0.v201410161800.jar:3.1.0]
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) ~[?:?]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:550) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at io.javalin.jetty.JettyServer$start$wsAndHttpHandler$1.doHandle(JettyServer.kt:52) ~[?:?]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) ~[?:?]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:179) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:400) ~[org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:645) [org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:392) [org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [org.eclipse.jetty.server_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [org.eclipse.jetty.io_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [org.eclipse.jetty.io_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [org.eclipse.jetty.io_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) [org.eclipse.jetty.util_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) [org.eclipse.jetty.util_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) [org.eclipse.jetty.util_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) [org.eclipse.jetty.util_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409) [org.eclipse.jetty.util_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) [org.eclipse.jetty.util_9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) [org.eclipse.jetty.util_9.4.44.v20210927.jar:9.4.44.v20210927]
at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: org.eclipse.emf.common.util.BasicEList$BasicIndexOutOfBoundsException: index=0, size=0
at org.eclipse.emf.common.util.BasicEList.remove(BasicEList.java:601) ~[?:?]
at org.eclipse.emf.common.notify.impl.NotifyingListImpl.doRemove(NotifyingListImpl.java:756) ~[?:?]
at org.eclipse.emf.common.notify.impl.NotifyingListImpl.remove(NotifyingListImpl.java:737) ~[?:?]
at org.eclipse.emfcloud.modelserver.common.codecs.DefaultJsonCodec.decode(DefaultJsonCodec.java:78) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.codecs.DICodecsManager.decode(DICodecsManager.java:99) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.DefaultModelController.readPayload(DefaultModelController.java:331) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.DefaultModelController.lambda$9(DefaultModelController.java:341) ~[?:?]
at java.util.Optional.ifPresentOrElse(Optional.java:201) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.DefaultModelController.withModel(DefaultModelController.java:411) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.DefaultModelController.executeCommand(DefaultModelController.java:340) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController.lambda$13(SingleThreadModelController.java:165) ~[?:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController.handleAction(SingleThreadModelController.java:89) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController.handleNextAction(SingleThreadModelController.java:83) ~[?:?]
at org.eclipse.emfcloud.modelserver.emf.common.SingleThreadModelController.runThread(SingleThreadModelController.java:69) ~[?:?]
... 1 more

root ERROR Request edit failed with error: invalid json response body at http://localhost:8081/api/v1/edit?modeluri=superbrewer3000.coffee reason: Unexpected end of JSON input FetchError: invalid json response body at http://localhost:8081/api/v1/edit?modeluri=superbrewer3000.coffee reason: Unexpected end of JSON input
at /coffee-editor/web/node_modules/node-fetch/lib/index.js:272:32
at runMicrotasks ()
at processTicksAndRejections (internal/process/task_queues.js:97:5)

</details>

Not only renaming is affected, also adding anything in the tree view causes errors.
The same happens with the deplyoed online version

[ndoschek]

Hi @Deel96,

we are currently facing some issues on current master, as we working on updating the coffee editor to new versions. Specifically, the issue you described is tracked here: eclipse-emfcloud/coffee-editor#446

Please see also the issues page of the coffee editor: https://github.com/eclipse-emfcloud/coffee-editor/issues

PS: It would be great if you could wrap such long log excerpts in collapsible <details> tags for example to make the thread more readable to others. Thanks!