Bug#904063: solr-tomcat: solr does not start due to NullPointerException

[Michael Welsh Duggan]

Package: solr-tomcat
Version: 3.6.2+dfsg-13
Severity: grave

Dear Maintainer,

According to my logs, tomcat8 is not properly starting solr.  I have
checked, and to the best of my knowledge I have not modified any of the
configuration files.  I tried reverting to java-8, (by modifying
JAVA_HOME in the /etc/default/tomcat8 file), but that did not turn out
to be the problem.  Here are the logs of the failure:

18-Jul-2018 22:01:19.148 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor [/etc/tomcat8/Catalina/localhost/solr.xml]
18-Jul-2018 22:01:19.505 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/solr]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:629)
	at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1839)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.lang.NullPointerException
	at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:373)
	at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:191)
	at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1888)
	at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1116)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:765)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	... 10 more

18-Jul-2018 22:01:19.506 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Error deploying configuration descriptor [/etc/tomcat8/Catalina/localhost/solr.xml]
 java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/solr]]
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:758)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:629)
	at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1839)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.base/java.lang.Thread.run(Thread.java:844)



-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages solr-tomcat depends on:
ii  solr-common  3.6.2+dfsg-13
ii  tomcat8      8.5.32-1

solr-tomcat recommends no packages.

solr-tomcat suggests no packages.

-- no debconf information

-- 
Michael Welsh Duggan
(md5i at md5i.com)