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Error while starting AEM 6.4 for the first time

Forum|Forum|7 years ago
September 7, 2018
8 replies
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Hello,

When i'm trying to start AEM 6.4 for the first time, I'm getting the below error:

Exception in thread "sling-oak-1" java.lang.NullPointerException

at org.apache.sling.commons.threads.impl.DefaultThreadPool$LoggingThreadLocalChangeListener.changed(DefaultThreadPool.java:172)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.changed(ThreadLocalCleaner.java:210)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.diff(ThreadLocalCleaner.java:173)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.cleanup(ThreadLocalCleaner.java:148)

at org.apache.sling.commons.threads.impl.ThreadPoolExecutorCleaningThreadLocals.afterExecute(ThreadPoolExecutorCleaningThreadLocals.java:75)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Also a null file is created in the quickstart folder. Is this a known issue in AEM 6.4?

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Best answer by joerghoh

ok, looks like the start.bat is incorrect. It rather should be

java --add-modules java.se.ee --version > nul 2>&1

(nul instead of null).

that probably should fix the issue with the "null" file, but not with error you see. Nevertheless, please raise a Daycare ticket for it.

And that exception shouldn't happen as well. Can you reproduce it?

Jörg

arunpatidar

Community Advisor

Hi,

Can you check jdk version? and other prerequisites before start.

Arun Patidar

S

sankeths53Author

I have all the prerequisites in place.

1. JDK 1.8

2. Maven 3.3.9

I'm able to open all the AEM consoles as well, but i was just curious to know about the null file in quickstart folder.

M

maddiletir57063

java version "1.8.0_121"

Java(TM) SE Runtime Environment (build 1.8.0_121-b13)

Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)

Technical Requirements same as adobe recommeded in technical requirements and we have checked before starting.

M

maddiletir57063

Just want to know why null file is created.

And Observed this...

Start.bat---> "java --add-modules java.se.ee --version > null 2>&1

if %errorlevel% EQU 0 set CQ_JVM_OPTS=--add-modules java.se.ee %CQ_JVM_OPTS%

"

In Null file --> "Unrecognized option: --add-modules"

joerghoh

Accepted solution

Adobe Employee

ok, looks like the start.bat is incorrect. It rather should be

java --add-modules java.se.ee --version > nul 2>&1

(nul instead of null).

that probably should fix the issue with the "null" file, but not with error you see. Nevertheless, please raise a Daycare ticket for it.

And that exception shouldn't happen as well. Can you reproduce it?

Jörg

vipintyagi

is there any fix for this ? When i am starting AEM Server below error occurs

Exception in thread "sling-oak-3" java.lang.NullPointerException

at org.apache.sling.commons.threads.impl.DefaultThreadPool$LoggingThreadLocalChangeListener.changed(DefaultThreadPool.java:172)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.changed(ThreadLocalCleaner.java:210)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.diff(ThreadLocalCleaner.java:173)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.cleanup(ThreadLocalCleaner.java:148)

at org.apache.sling.commons.threads.impl.ThreadPoolExecutorCleaningThreadLocals.afterExecute(ThreadPoolExecutorCleaningThreadLocals.java:75)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Exception in thread "sling-oak-6" java.lang.NullPointerException

at org.apache.sling.commons.threads.impl.DefaultThreadPool$LoggingThreadLocalChangeListener.changed(DefaultThreadPool.java:172)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.changed(ThreadLocalCleaner.java:210)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.diff(ThreadLocalCleaner.java:173)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.cleanup(ThreadLocalCleaner.java:148)

at org.apache.sling.commons.threads.impl.ThreadPoolExecutorCleaningThreadLocals.afterExecute(ThreadPoolExecutorCleaningThreadLocals.java:75)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Exception in thread "sling-oak-2" java.lang.NullPointerException

at org.apache.sling.commons.threads.impl.DefaultThreadPool$LoggingThreadLocalChangeListener.changed(DefaultThreadPool.java:172)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.changed(ThreadLocalCleaner.java:210)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.diff(ThreadLocalCleaner.java:173)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.cleanup(ThreadLocalCleaner.java:148)

at org.apache.sling.commons.threads.impl.ThreadPoolExecutorCleaningThreadLocals.afterExecute(ThreadPoolExecutorCleaningThreadLocals.java:75)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Exception in thread "sling-oak-1" java.lang.NullPointerException

at org.apache.sling.commons.threads.impl.DefaultThreadPool$LoggingThreadLocalChangeListener.changed(DefaultThreadPool.java:172)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.changed(ThreadLocalCleaner.java:210)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.diff(ThreadLocalCleaner.java:173)

at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.cleanup(ThreadLocalCleaner.java:148)

at org.apache.sling.commons.threads.impl.ThreadPoolExecutorCleaningThreadLocals.afterExecute(ThreadPoolExecutorCleaningThreadLocals.java:75)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Exception in thread "sling-oak-5" java.lang.NullPointerException

Exception in thread "sling-oak-4" java.lang.NullPointerException

joerghoh

Adobe Employee

I see that exception too. I found it already reported at [1] and [2].

Jörg

[1] [SLING-7526] NPE in DefaultThreadPool$LoggingThreadLocalChangeListener.changed - ASF JIRA

[2] [SLING-7320] NPE in sling commons threads - ASF JIRA

S

shahrukha567143

Level 2

The same issue I am facing while starting the AEM Server first time. And also the same jars file in working fine in other machine. Please do the needfull