Java ExceptionsError

NullPointerException

errorCodes.java-nullpointerexception.name

errorCodes.java-nullpointerexception.description

jvmandroidspring

What causes this error

errorCodes.java-nullpointerexception.cause

How to fix it

errorCodes.java-nullpointerexception.fix

Example

String s = null;
s.length(); // NPE

Official Documentation

Related Error Codes

Java ExceptionsError

IllegalMonitorStateException

errorCodes.java-illegalmonitorstateexception.name

errorCodes.java-illegalmonitorstateexception.description

Java ExceptionsError

AccessDeniedException

errorCodes.java-accessdeniedexception.name

errorCodes.java-accessdeniedexception.description

Java ExceptionsFatal

ClassCircularityError

errorCodes.java-classpathcircular.name

errorCodes.java-classpathcircular.description

Java ExceptionsError

ObjectStreamException

errorCodes.java-objectstreamexception.name

errorCodes.java-objectstreamexception.description

Java ExceptionsError

DateTimeParseException

errorCodes.java-dateformatexception.name

errorCodes.java-dateformatexception.description

Java ExceptionsError

ConcurrentModificationException

errorCodes.java-concurrentmodificationexception.name

errorCodes.java-concurrentmodificationexception.description

jvmandroidspring