Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Stack Overflow by user2202757
, 2 years ago
Attempt to invoke virtual method 'void dalvik.system.CloseGuard.warnIfOpen()' on a null object reference
via Stack Overflow by Code Monster
, 1 year ago
Attempt to invoke virtual method 'void dalvik.system.CloseGuard.warnIfOpen()' on a null object reference
via GitHub by narendra9593
, 1 year ago
Attempt to invoke virtual method 'void dalvik.system.CloseGuard.warnIfOpen()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'void dalvik.system.CloseGuard.warnIfOpen()' on a null object reference	at android.graphics.pdf.PdfRenderer.finalize(PdfRenderer.java:210)	at java.lang.Daemons$FinalizerDaemon.doFinalize(Daemons.java:217)	at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:200)	at java.lang.Thread.run(Thread.java:818)