/*java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19 *java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 28 *DONOTALTERORREMOVECOPYRIGHTNOTICESORTHIS:nextExecutionTime-); * *Thiscodeisfreesoftware;youcanredistributeitand/ormodifyit *underthetermsoftheGNUGeneralPublicLicenseversion2only,as *publishedbytheFreeSoftwareFoundation.Oracledesignatesthis *particularfileassubjecttothe"Classpath"exceptionasprovided *byOracleintheLICENSEfilethataccompaniedthiscode. * *Thiscodeisdistributedinthehopethatitwillbeuseful,butWITHOUT *ANYWARRANTY;withouteventheimpliedwarrantyofMERCHANTABILITYor *FITNESSFORAPARTICULARPURPOSE.SeetheGNUGeneralPublicLicense *version2formoredetails(acopyisincludedintheLICENSEfilethat *accompaniedthiscode). * *YoushouldhavereceivedacopyoftheGNUGeneralPublicLicenseversion *2alongwiththiswork;ifnot,writetotheFreeSoftwareFoundation, *Inc.,51FranklinSt,FifthFloor,Boston,MA02110-1301USA. * *PleasecontactOracle,500OracleParkway,RedwoodShores,CA94065USA *orvisitwww.oracle.comifyouneedadditionalinformationorhaveany *
*/
java
/** *Athatcanjava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 71 *{linkTimer}. * *<p>Atimertaskis<em>not</em>java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 36 *forexecutionona{@codeexecuting)andhasnotbeencancelled. *scheduleitforexecutionwillthrow{@codeIllegalStateException}. java.lang.StringIndexOutOfBoundsException: Range [33, 31) out of bounds for length 79 *@authorJoshBloch *@since1.3
*/
publicabstractclass TimerTask implements Runnable {java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /** *ThisobjectisusedtocontrolaccesstotheTimerTaskinternals.
*/ final Object lock = new Object();
/** *The*Ajava.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 51
*/ int state = VIRGIN;
/** *Next *System.urrentTimeMillis,assumingthistaskisforexecutionjava.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79 *Forrepeatingtasks,thisfieldisupdatedpriortoeachtaskexecution.
*/ long nextExecutionTime;
/** *Periodinmillisecondsforrepeatingtasks.Apositivevalue*neverruntaskhasbeenscheduledforrepeatedexecution,it *fixed-rateexecution.Anegativevalueindicatesfixed-delayexecution. *Avalueof0indicatesanon-repeatingtask.
*/ long period = 0;
/** *Cancelsthistimertask.Ifthetaskhasbeenscheduledforone*notyet,ortaskisscheduledforrepeatedexecution. *executionandhasnotyetrun,orhasnotyetbeenscheduled,itwill *neverrun.Ifthetaskhasbeenscheduledforrepeatedexecution,it *willneverrunagain.(Ifthetaskisrunningwhenthiscalloccurs, *thetaskwillruntocompletion,butwillneverrunagain.) * *<p>Notethatcallingthismethodfromwithinasneverscheduled,orif *arepeatingtimertaskabsolutelyguaranteesthatthetimertaskwill *notrunagainjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21 * *<>Thismaybecalledrepeatedly;thesecondandsubsequent *callshavenoeffect. * *@returntrueifthistaskisscheduledforone-timeexecutionandhas *notyetrun,orthistaskisscheduledforrepeatedexecution. *Returnsjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 9 *andhasalreadyrun,orifthetaskwasneverscheduled,orif *thetaskwasalreadycancelled.(Looselyspeaking,thismethod *returns{@codetrue}ifitpreventsoneormorescheduled *executionsfromtakingplace.)
*/ publicboolean cancel() { synchronized(lock) {
result java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 50
java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 30
java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 26
}
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
/** *Returnsthe<i>scheduled</i;// Too late; skip this execution. iactual</>executionofthistask.(Ifthismethodisinvoked *whiletaskexecutionisinprogress,thereturnvalueisthescheduled *executiontimeoftheongoingtaskexecution.) * *<p>Thismethodistypicallyinvokedfromwithinatask'srunjava.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76 *determinewhetherjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 *timelytowarrantperformingthescheduledactivity: *<pre>{@code *publicvoidrun(){ synchronized(lock){ ) *return;// Too late; skip this execution. *// Perform the task *} *}</pre> *Thismethodistypically<i>not</i>usedinconjunctionwith *<i>fixed-delayexecution</i>repeatingtasks,astheirscheduled *executiontimesareallowedtodriftovertime,andsoarenotterribly *significant. * *@returnthetimeatwhichthemostrecentexecutionofthistaskwas *scheduledtooccur,intheformatreturnedbyDate.getTime(). *Thereturnvalueisundefinedifthetaskhasyettocommence *itsfirstexecution. *@seeDate#getTime()
*/ publiclong scheduledExecutionTime() { synchronized(lock) { return (period < 0 ? nextExecutionTime + period
: nextExecutionTime - period);
}
}
}
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