We are using JBoss version 3.0.3 and tomcat version 4.1. When a jsp is being compiled we get random errors on jsp which compiled before. An example of a recent error is a for statement in the jsp like for ( int x=1; x < 5; x++ ) started failing and the compiler complained that the x < 5 found int and expected boolean, changing the statement to for ( int x=1; x <= 5; x++ ) fixed the compile problem. Also we often get compiler errors complaining of out of memory. This seams very random. Has anyone else experienced wierd jsp compile problems. Any suggestions ? Is jetty more reliable with jboss than tomcat ? Is a different version of tomcat more reliable than any other ?