How to set empty context root for payara micro?

Question

my app works with payara server without setting any context root but payara micro is setting default context root as name of my war file. How do I set context root to empty in case ot payara micro ?

one of the way is to set war name as ROOT.war but with that name i get following error while deploying. I tried putting xerces-2.9.1 jar in --addLibs but doesnt work.

2020-08-20T21:36:53.110+0200] [] [SEVERE] [] [javax.enterprise.system.tools.deployment.common] [tid: _ThreadID=1 _ThreadName=main] [timeMillis: 1597952213110] [levelValue: 1000] [[
  Exception while invoking class com.sun.enterprise.web.WebApplication start method
java.lang.Exception: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: java.lang.AbstractMethodError
    at com.sun.enterprise.web.WebApplication.start(WebApplication.java:136)
    at org.glassfish.internal.data.EngineRef.start(EngineRef.java:123)
    at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:280)
    at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:344)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.initialize(ApplicationLifecycle.java:584)
    at fish.payara.deployment.admin.InitializeAllApplicationsCommand.execute(InitializeAllApplicationsCommand.java:75)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:558)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:554)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:553)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:584)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:576)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:360)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:575)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1496)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:120)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1878)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1754)
    at com.sun.enterprise.admin.cli.embeddable.CommandExecutorImpl.executeCommand(CommandExecutorImpl.java:183)
    at com.sun.enterprise.admin.cli.embeddable.CommandExecutorImpl.run(CommandExecutorImpl.java:96)
    at fish.payara.micro.impl.PayaraMicroImpl.bootStrap(PayaraMicroImpl.java:1063)
    at fish.payara.micro.impl.PayaraMicroImpl.create(PayaraMicroImpl.java:211)
    at fish.payara.micro.impl.PayaraMicroImpl.main(PayaraMicroImpl.java:200)
    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 fish.payara.micro.boot.loader.MainMethodRunner.run(MainMethodRunner.java:50)
    at fish.payara.micro.boot.loader.Launcher.launch(Launcher.java:114)
    at fish.payara.micro.boot.loader.Launcher.launch(Launcher.java:73)
    at fish.payara.micro.boot.PayaraMicroLauncher.create(PayaraMicroLauncher.java:87)
    at fish.payara.micro.boot.PayaraMicroLauncher.main(PayaraMicroLauncher.java:71)
    at fish.payara.micro.PayaraMicro.main(PayaraMicro.java:397)
]]

score 2 · Answer 1 · answered Aug 24 '20 at 08:05

First thing, you shouldn't get an error just because you rename your application to ROOT.war. If that happens on the latest version of Payara Micro, you should raise a github issue: https://github.com/payara/Payara/issues

Now back to the question. You can set the context root with the --contextroot command line option set to /:

java -jar payara-micro.jar --contextroot / app.war

If you deploy multiple applications or resources, you can specify the context root in the name of the deployment file separated by a colon (or semicolon on Windows), e.g.:

java -jar payara-micro.jar app.war:/

Here's complete documentation about this: https://docs.payara.fish/community/docs/5.2020.4/documentation/payara-micro/deploying/deploy-cmd-line.html#define-context-root

How to set empty context root for payara micro?

1 Answers1