console code:
sd = system.date.parse('2025-09-23 08:00:00')
ed = system.date.parse('2025-09-23 10:00:00')
payl = {'startDate': sd, 'endDate': ed}
res = system.util.sendRequest(project="DATAHUB", messageHandler="pl3-prodOutput_McxPMP", payload=payl, remoteServer="ignition-vmappp043")
ERROR:
java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
>>>
Show the code that handles the payload
the payload does not seems to be the problem: here another test:
no payload
messageHandler only return a string :
Can you copy the entire stacktrace you're getting in the script console and paste it here, in a preformatted text block?
That is, prefix with three ` symbols, and postfix with three ` symbols:
```
code
```
1 Like
Java Traceback:
Traceback (most recent call last):
File "<input>", line 1, in <module>
at java.base/java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.get(Unknown Source)
at com.inductiveautomation.ignition.common.script.builtin.SystemUtilities.sendRequest(SystemUtilities.java:827)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
at org.python.core.Py.JavaError(Py.java:545)
at org.python.core.Py.JavaError(Py.java:536)
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:192)
at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction.__call__(ScriptManager.java:563)
at org.python.core.PyObject.__call__(PyObject.java:400)
at org.python.pycode._pyx19.f$0(<input>:1)
at org.python.pycode._pyx19.call_function(<input>)
at org.python.core.PyTableCode.call(PyTableCode.java:173)
at org.python.core.PyCode.call(PyCode.java:18)
at org.python.core.Py.runCode(Py.java:1703)
at org.python.core.Py.exec(Py.java:1747)
at org.python.util.PythonInterpreter.exec(PythonInterpreter.java:277)
at org.python.util.InteractiveInterpreter.runcode(InteractiveInterpreter.java:130)
at com.inductiveautomation.ignition.designer.gui.tools.jythonconsole.JythonConsole$ConsoleWorker.doInBackground(JythonConsole.java:628)
at com.inductiveautomation.ignition.designer.gui.tools.jythonconsole.JythonConsole$ConsoleWorker.doInBackground(JythonConsole.java:616)
at java.desktop/javax.swing.SwingWorker$1.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
at java.desktop/javax.swing.SwingWorker.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
at java.base/java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.get(Unknown Source)
at com.inductiveautomation.ignition.common.script.builtin.SystemUtilities.sendRequest(SystemUtilities.java:827)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:190)
... 18 more
Caused by: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
at com.inductiveautomation.ignition.gateway.script.rpc.ScriptMessagingRpcImpl.extractPayload(ScriptMessagingRpcImpl.java:93)
at com.inductiveautomation.ignition.gateway.script.rpc.ScriptMessagingRpcImpl.dispatchRequest(ScriptMessagingRpcImpl.java:69)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(:0)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(:0)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(:0)
at java.lang.reflect.Method.invoke(:0)
at com.inductiveautomation.ignition.gateway.rpc.RpcDelegate$DelegateRpcHandler.handle(RpcDelegate.java:271)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.lambda$handle$1(RpcRoutes.java:199)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.safelyHandle(RpcRoutes.java:219)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.handle(RpcRoutes.java:198)
at com.inductiveautomation.ignition.gateway.dataroutes.Route.service(Route.java:361)
at com.inductiveautomation.ignition.gateway.dataroutes.RouteGroupImpl.service(RouteGroupImpl.java:120)
at com.inductiveautomation.ignition.gateway.dataroutes.RouteGroupCollectionServlet.serviceInternal(RouteGroupCollectionServlet.java:133)
at com.inductiveautomation.ignition.gateway.dataroutes.AbstractRouteGroupServlet.service(AbstractRouteGroupServlet.java:40)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614)
at org.eclipse.jetty.ee10.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1379)
at org.eclipse.jetty.ee10.servlet.ServletHolder.handle(ServletHolder.java:736)
at org.eclipse.jetty.ee10.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1614)
at com.inductiveautomation.catapult.filters.GatewayFilter.doFilter(GatewayFilter.java:116)
at jakarta.servlet.http.HttpFilter.doFilter(HttpFilter.java:97)
at org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at org.eclipse.jetty.ee10.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1547)
at org.eclipse.jetty.ee10.servlet.ServletChannel.dispatch(ServletChannel.java:819)
at org.eclipse.jetty.ee10.servlet.ServletChannel.handle(ServletChannel.java:436)
at org.eclipse.jetty.ee10.servlet.ServletHandler.handle(ServletHandler.java:464)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:575)
at org.eclipse.jetty.ee10.servlet.SessionHandler.handle(SessionHandler.java:717)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1060)
at org.eclipse.jetty.rewrite.handler.RewriteHandler$LastRuleHandler.handle(RewriteHandler.java:159)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:143)
at org.eclipse.jetty.server.Handler$Sequence.handle(Handler.java:805)
at org.eclipse.jetty.server.Handler$Sequence.handle(Handler.java:805)
at org.eclipse.jetty.server.Server.handle(Server.java:182)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:662)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:418)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:322)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
at org.eclipse.jetty.io.ssl.SslConnection$SslEndPoint.onFillable(SslConnection.java:575)
at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:390)
at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:150)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:478)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:441)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:201)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:311)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:979)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1209)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1164)
at java.lang.Thread.run(:0)
Traceback (most recent call last):
File "<input>", line 1, in <module>
at java.base/java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.get(Unknown Source)
at com.inductiveautomation.ignition.common.script.builtin.SystemUtilities.sendRequest(SystemUtilities.java:827)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
1 Like
Thanks, that helps a lot. We're looking into this internally.
Is this remote server running 8.1, or 8.3? Looks like 8.3 based on your gateway events screenshot above...
all gtw are 8.3
1 Like
If you freshly launch the designer, does this problem still occur?
If so, is there an error at the beginning of your designer's logging output with a message Failed to retrieve script message encoding, defaulting to JSON? If so, can you post the full related stacktrace here?
If you mean the Output Console, no there isn’t.
still getting this error in Script Console
Java Traceback:
Traceback (most recent call last):
File "<input>", line 1, in <module>
at java.base/java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.get(Unknown Source)
at com.inductiveautomation.ignition.common.script.builtin.SystemUtilities.sendRequest(SystemUtilities.java:827)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
at org.python.core.Py.JavaError(Py.java:545)
at org.python.core.Py.JavaError(Py.java:536)
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:192)
at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction.__call__(ScriptManager.java:563)
at org.python.core.PyObject.__call__(PyObject.java:400)
at org.python.pycode._pyx4.f$0(<input>:1)
at org.python.pycode._pyx4.call_function(<input>)
at org.python.core.PyTableCode.call(PyTableCode.java:173)
at org.python.core.PyCode.call(PyCode.java:18)
at org.python.core.Py.runCode(Py.java:1703)
at org.python.core.Py.exec(Py.java:1747)
at org.python.util.PythonInterpreter.exec(PythonInterpreter.java:277)
at org.python.util.InteractiveInterpreter.runcode(InteractiveInterpreter.java:130)
at com.inductiveautomation.ignition.designer.gui.tools.jythonconsole.JythonConsole$ConsoleWorker.doInBackground(JythonConsole.java:628)
at com.inductiveautomation.ignition.designer.gui.tools.jythonconsole.JythonConsole$ConsoleWorker.doInBackground(JythonConsole.java:616)
at java.desktop/javax.swing.SwingWorker$1.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
at java.desktop/javax.swing.SwingWorker.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
at java.base/java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.get(Unknown Source)
at com.inductiveautomation.ignition.common.script.builtin.SystemUtilities.sendRequest(SystemUtilities.java:827)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:190)
... 18 more
Caused by: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
at com.inductiveautomation.ignition.gateway.script.rpc.ScriptMessagingRpcImpl.extractPayload(ScriptMessagingRpcImpl.java:93)
at com.inductiveautomation.ignition.gateway.script.rpc.ScriptMessagingRpcImpl.dispatchRequest(ScriptMessagingRpcImpl.java:69)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(:0)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(:0)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(:0)
at java.lang.reflect.Method.invoke(:0)
at com.inductiveautomation.ignition.gateway.rpc.RpcDelegate$DelegateRpcHandler.handle(RpcDelegate.java:271)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.lambda$handle$1(RpcRoutes.java:199)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.safelyHandle(RpcRoutes.java:219)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.handle(RpcRoutes.java:198)
at com.inductiveautomation.ignition.gateway.dataroutes.Route.service(Route.java:361)
at com.inductiveautomation.ignition.gateway.dataroutes.RouteGroupImpl.service(RouteGroupImpl.java:120)
at com.inductiveautomation.ignition.gateway.dataroutes.RouteGroupCollectionServlet.serviceInternal(RouteGroupCollectionServlet.java:133)
at com.inductiveautomation.ignition.gateway.dataroutes.AbstractRouteGroupServlet.service(AbstractRouteGroupServlet.java:40)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614)
at org.eclipse.jetty.ee10.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1379)
at org.eclipse.jetty.ee10.servlet.ServletHolder.handle(ServletHolder.java:736)
at org.eclipse.jetty.ee10.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1614)
at com.inductiveautomation.catapult.filters.GatewayFilter.doFilter(GatewayFilter.java:116)
at jakarta.servlet.http.HttpFilter.doFilter(HttpFilter.java:97)
at org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at org.eclipse.jetty.ee10.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1547)
at org.eclipse.jetty.ee10.servlet.ServletChannel.dispatch(ServletChannel.java:819)
at org.eclipse.jetty.ee10.servlet.ServletChannel.handle(ServletChannel.java:436)
at org.eclipse.jetty.ee10.servlet.ServletHandler.handle(ServletHandler.java:464)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:575)
at org.eclipse.jetty.ee10.servlet.SessionHandler.handle(SessionHandler.java:717)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1060)
at org.eclipse.jetty.rewrite.handler.RewriteHandler$LastRuleHandler.handle(RewriteHandler.java:159)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:143)
at org.eclipse.jetty.server.Handler$Sequence.handle(Handler.java:805)
at org.eclipse.jetty.server.Handler$Sequence.handle(Handler.java:805)
at org.eclipse.jetty.server.Server.handle(Server.java:182)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:662)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:418)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:322)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
at org.eclipse.jetty.io.ssl.SslConnection$SslEndPoint.onFillable(SslConnection.java:575)
at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:390)
at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:150)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:478)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:441)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:201)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:311)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:979)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1209)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1164)
at java.lang.Thread.run(:0)
Traceback (most recent call last):
File "<input>", line 1, in <module>
at java.base/java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.get(Unknown Source)
at com.inductiveautomation.ignition.common.script.builtin.SystemUtilities.sendRequest(SystemUtilities.java:827)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
I don’t see anything in the gateway logs either.
java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class org.python.core.PyDictionary (java.util.Collections$UnmodifiableMap is in module java.base of loader 'bootstrap'; org.python.core.PyDictionary is in unnamed module of loader 'app')
at com.inductiveautomation.ignition.gateway.script.rpc.ScriptMessagingRpcImpl.extractPayload(ScriptMessagingRpcImpl.java:93)
at com.inductiveautomation.ignition.gateway.script.rpc.ScriptMessagingRpcImpl.dispatchRequest(ScriptMessagingRpcImpl.java:69)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at com.inductiveautomation.ignition.gateway.rpc.RpcDelegate$DelegateRpcHandler.handle(RpcDelegate.java:271)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.lambda$handle$1(RpcRoutes.java:199)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.safelyHandle(RpcRoutes.java:219)
at com.inductiveautomation.ignition.gateway.rpc.RpcRoutes.handle(RpcRoutes.java:198)
at com.inductiveautomation.ignition.gateway.dataroutes.Route.service(Route.java:361)
at com.inductiveautomation.ignition.gateway.dataroutes.RouteGroupImpl.service(RouteGroupImpl.java:120)
at com.inductiveautomation.ignition.gateway.dataroutes.RouteGroupCollectionServlet.serviceInternal(RouteGroupCollectionServlet.java:133)
at com.inductiveautomation.ignition.gateway.dataroutes.AbstractRouteGroupServlet.service(AbstractRouteGroupServlet.java:40)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614)
at org.eclipse.jetty.ee10.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1379)
at org.eclipse.jetty.ee10.servlet.ServletHolder.handle(ServletHolder.java:736)
at org.eclipse.jetty.ee10.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1614)
at com.inductiveautomation.catapult.filters.GatewayFilter.doFilter(GatewayFilter.java:116)
at jakarta.servlet.http.HttpFilter.doFilter(HttpFilter.java:97)
at org.eclipse.jetty.ee10.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee10.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1586)
at org.eclipse.jetty.ee10.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1547)
at org.eclipse.jetty.ee10.servlet.ServletChannel.dispatch(ServletChannel.java:819)
at org.eclipse.jetty.ee10.servlet.ServletChannel.handle(ServletChannel.java:436)
at org.eclipse.jetty.ee10.servlet.ServletHandler.handle(ServletHandler.java:464)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:575)
at org.eclipse.jetty.ee10.servlet.SessionHandler.handle(SessionHandler.java:717)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1060)
at org.eclipse.jetty.rewrite.handler.RewriteHandler$LastRuleHandler.handle(RewriteHandler.java:159)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.HeaderPatternRule$1.handle(HeaderPatternRule.java:89)
at org.eclipse.jetty.rewrite.handler.Rule$Handler.handle(Rule.java:108)
at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:143)
at org.eclipse.jetty.server.Handler$Sequence.handle(Handler.java:805)
at org.eclipse.jetty.server.Handler$Sequence.handle(Handler.java:805)
at org.eclipse.jetty.server.Server.handle(Server.java:182)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:662)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:418)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:322)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
at org.eclipse.jetty.io.ssl.SslConnection$SslEndPoint.onFillable(SslConnection.java:575)
at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:390)
at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:150)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:478)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:441)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:201)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:311)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:979)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1209)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1164)
at java.base/java.lang.Thread.run(Unknown Source)
in gateway logs
not sure, this warning only appeared once. Even if I did multiple sendRequest.
Can you direct message me your full system logs? I can't tell whether that gateway error is relevant or not, and there might be other information that's also useful.
Thanks, I was able to figure out the root cause and work out a fix. Hopefully will get in to 8.3.1, if not 8.3.2.
If you restart the gateway and the designer, it should work consistently until/unless you change the 'Script Message Encoding' property in the gateway settings.
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Ok thank you Paul, I will be able to restart this weekend.
This fix has been merged, so this will be fixed as of 8.3.1.
2 Likes