[TOMEE-3797] Misassignment webapp->host hard to detect

• Type: Wish
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 8.0.8
• Fix Version/s: 8.0.9
• Component/s: TomEE Core Server
• Labels: patch-available
• Assignee: Richard Zowalla
• Reporter: Bodo Pfelzer
• Created: 23/Sep/21 08:12
• Updated: 06/Oct/22 14:08
• Resolved: 06/Oct/22 14:08

Description

TomEE allows to deploy webapps inside an EAR file to different hosts by setting a system property. If this property points to an unknown host, the error message will be hard to understand:

SEVERE: Application could not be deployed: /tmp/tomee/apps/hello
org.apache.openejb.OpenEJBException: Creating application failed: /tmp/tomee/apps/hello: null
 at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:1104)
 at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:759)
 at org.apache.openejb.assembler.classic.Assembler.buildContainerSystem(Assembler.java:637)
 at org.apache.openejb.assembler.classic.Assembler.build(Assembler.java:494)
 at org.apache.openejb.OpenEJB$Instance.<init>(OpenEJB.java:150)
 at org.apache.openejb.OpenEJB.init(OpenEJB.java:307)
 at org.apache.tomee.catalina.TomcatLoader.initialize(TomcatLoader.java:245)
 at org.apache.tomee.catalina.ServerListener.lifecycleEvent(ServerListener.java:169)
 at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
 at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
 at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:137)
 at org.apache.catalina.startup.Catalina.load(Catalina.java:724)
 at org.apache.catalina.startup.Catalina.load(Catalina.java:746)
 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.apache.catalina.startup.Bootstrap.load(Bootstrap.java:305)
 at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
Caused by: java.lang.NullPointerException
 at org.apache.catalina.core.ApplicationContext.<init>(ApplicationContext.java:121)
 at org.apache.catalina.core.StandardContext.getServletContext(StandardContext.java:2334)
 at org.apache.tomee.catalina.security.TomcatSecurityConstaintsToJaccPermissionsTransformer.<init>(TomcatSecurityConstaintsToJaccPermissionsTransformer.java:78)
 at org.apache.tomee.catalina.TomcatWebAppBuilder.deployWebApps(TomcatWebAppBuilder.java:622)
 at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:1054)
 ... 18 more

Attached you find an example.ear. The error may be triggered by defining the system property

helloweb.host=no.such.host.com

Also attached you find two possible fixes. The first one throws a better exception. The alternative one just skips the webapp.

Issue Links

• links to: GitHub Pull Request #802