Defect #1247
renderTemplate() returns NULL
0%
Description
I try to use the renderTemplate function in Developer which works correctly in SmartClient and NGClient but not in Webclient.
When I run the following command in the Command Console;
plugins.VelocityReport.renderTemplate("<html>test</html>",{})
I get a NULL back.In the Servoy log I see the following exception:
java.lang.NullPointerException
at org.apache.wicket.Session.getClientInfo(Session.java:568)
at com.servoy.j2db.server.headlessclient.WebClient.getServerURL(WebClient.java:125)
at com.servoy.j2db.plugins.ClientPluginAccessProvider.getServerURL(ClientPluginAccessProvider.java:335)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getApplicationURL(VelocityHelper.java:390)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getContextURL(VelocityHelper.java:458)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getBaseURLFromScriptable(VelocityHelper.java:436)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getBaseHrefFromScriptable(VelocityHelper.java:405)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.evaluateWithContext(VelocityHelper.java:287)
at net.stuff.servoy.plugin.velocityreport.VelocityReportProvider.js_renderTemplate(VelocityReportProvider.java:1585)
at net.stuff.servoy.plugin.velocityreport.VelocityReportProvider.js_renderTemplate(VelocityReportProvider.java:1566)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:158)
at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:312)
at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:70)
at org.mozilla.javascript.gen.internal_anon_12._c_script_0(internal_anon:1)
at org.mozilla.javascript.gen.internal_anon_12.call(internal_anon)
at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:406)
at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3204)
at org.mozilla.javascript.gen.internal_anon_12.call(internal_anon)
at org.mozilla.javascript.gen.internal_anon_12.exec(internal_anon)
at org.mozilla.javascript.Context.evaluateString(Context.java:1121)
at com.servoy.eclipse.debug.scriptingconsole.CommandHandler$1.run(CommandHandler.java:67)
at com.servoy.j2db.server.headlessclient.WebClient.invokeAndWait(WebClient.java:565)
at com.servoy.eclipse.debug.scriptingconsole.CommandHandler.handleCommand(CommandHandler.java:58)
at com.servoy.eclipse.debug.scriptingconsole.ScriptConsoleViewer$ConsoleDocumentListener$1.run(ScriptConsoleViewer.java:175)
Velocity v3.5.52
Servoy version 8.1.4 -releaseNumber 3035
JVM Information
java.vm.name=Java HotSpot(TM) 64-Bit Server VM
java.version=1.8.0_141
java.vm.info=mixed mode
java.vm.vendor=Oracle Corporation
History
Updated by Patrick Talbot over 6 years ago
- Status changed from New to Feedback
- Assignee set to Robert Ivens
That's a weird one. Not that it is not working in Web client, but that it would work at all in Smart and NG. :D
renderTemplate is usually expecting a template path, not the actual template content!
You could add a "fromString: true" property in the context object you're passing and this should work (telling Velocity that the String is actually the template content and not a path).
Or use evaluateWithContext() instead which is made for that...
Updated by Robert Ivens over 6 years ago
- Assignee changed from Robert Ivens to Patrick Talbot
It all actually works in 7.4.x :) Just not in 8.1.x
Anyway, I tried the following commands and they all return NULL and in the servoy log shows the same exception:
plugins.VelocityReport.renderTemplate("<html>test</html>",{})
plugins.VelocityReport.renderTemplate("<html>test</html>",{fromString: true})
plugins.VelocityReport.evaluateWithContext("<html>test</html>",{})
plugins.VelocityReport.evaluateWithContext("<html>test</html>",{fromString: true})
Updated by Patrick Talbot over 6 years ago
- Assignee changed from Patrick Talbot to Robert Ivens
Hum... I would gather that the call to getServerURL() is really to try and set a base ref URL to the xml... wonder why Session.getClientInfo() would suddenly throw a NullPointerException though.
Is that in developer or on a server? And what version of Servoy is it exactly? I'll have a deeper look asap.
Updated by Robert Ivens over 6 years ago
This is in Developer.
Version(s):
Velocity v3.5.52
Servoy version 8.1.4 -releaseNumber 3035
JVM Information
java.vm.name=Java HotSpot(TM) 64-Bit Server VM
java.version=1.8.0_141
java.vm.info=mixed mode
java.vm.vendor=Oracle Corporation
On macOS 10.12.6 (Sierra)
Updated by Patrick Talbot over 6 years ago
- Status changed from Feedback to Resolved
Fixed in v3.5.53
Updated by Koen Cloostermans over 6 years ago
Hi Patrick,
In web client i do get this similar error
See below.
Thanks a bunch
Koen
===
Velocity 3.5.53
Server Information
Servoy version 8.2.1 -releaseNumber 3105
JVM Information
java.vm.name=Java HotSpot(TM) 64-Bit Server VM
java.version=1.8.0_151
java.vm.info=mixed mode
java.vm.vendor=Oracle Corporation
Operating System Information
os.name=Mac OS X
os.version=10.13.1
os.arch=x86_64
=== in developer
plugins.VelocityReport.evaluateWithContext("hello world",{})
ERROR com.servoy.j2db.util.Debug - Throwable
at internal_anon:1
=== in server log
2017-11-23 12:13 Command Line Handler ERROR com.servoy.j2db.util.Debug Throwable at internal_anon:1 71A556CF-705D-48AD-81C7-BE2145C48204 servOS
java.lang.NullPointerException
at org.apache.wicket.Session.getClientInfo(Session.java:568)
at com.servoy.j2db.server.headlessclient.WebClient.getServerURL(WebClient.java:125)
at com.servoy.j2db.plugins.ClientPluginAccessProvider.getServerURL(ClientPluginAccessProvider.java:335)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getApplicationURL(VelocityHelper.java:394)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getContextURL(VelocityHelper.java:468)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getBaseURLFromScriptable(VelocityHelper.java:446)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.getBaseHrefFromScriptable(VelocityHelper.java:415)
at net.stuff.servoy.plugin.velocityreport.util.VelocityHelper.evaluateWithContext(VelocityHelper.java:287)
at net.stuff.servoy.plugin.velocityreport.VelocityReportProvider.js_evaluateWithContext(VelocityReportProvider.java:937)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:158)
at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:312)
at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:70)
at org.mozilla.javascript.gen.internal_anon_1._c_script_0(internal_anon:1)
at org.mozilla.javascript.gen.internal_anon_1.call(internal_anon)
at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:406)
at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3204)
at org.mozilla.javascript.gen.internal_anon_1.call(internal_anon)
at org.mozilla.javascript.gen.internal_anon_1.exec(internal_anon)
at org.mozilla.javascript.Context.evaluateString(Context.java:1121)
at com.servoy.eclipse.debug.scriptingconsole.CommandHandler$1.run(CommandHandler.java:67)
at com.servoy.j2db.server.headlessclient.WebClient.invokeAndWait(WebClient.java:565)
at com.servoy.eclipse.debug.scriptingconsole.CommandHandler.handleCommand(CommandHandler.java:58)
at com.servoy.eclipse.debug.scriptingconsole.ScriptConsoleViewer$ConsoleDocumentListener$1.run(ScriptConsoleViewer.java:175)
Updated by Robert Ivens over 6 years ago
- Status changed from Resolved to Reopened
I see the same thing at Koen's environment, however I can't reproduce it on my system. Very weird.
Edit: Actually I see it too in my Servoy 8.2.1 environment. Webclient gives that error, Smart client and NG Client works fine.
Updated by Patrick Talbot over 6 years ago
- Assignee changed from Patrick Talbot to Robert Ivens
- Status changed from Reopened to Feedback
I thought I had fixed this. Is there any other exception with Velocity before that one?
Updated by Robert Ivens over 6 years ago
I just did it again, ran the web client. Checked first the servoy log in servoy-admin page (running developer).
Then in the command console I typed the following command:
plugins.VelocityReport.evaluateWithContext("hello world",{})Which returned nothing, but I did get the following output in the Console view:
ERROR com.servoy.j2db.util.Debug - Throwable
at internal_anon:1
And in the servoy log I get the stack trace that Koen posted.