Allocate more memory for the JVM when starting the application/server. As an example, pass the following in to the JVM on startup: -Xms128m -Xmx256m By default, the JVM only allocate 64M of memory. You simply need to tell the JVM to allocate more. "Shiva Shankar Reddy Katula" <shivashankar.k(a)sonata-software.com&gt; Sent by: rules-users-bounces(a)lists.jboss.org 01/21/2008 10:38 PM Please respond to Rules Users List <rules-users(a)lists.jboss.org&gt; To "Rules Users List" <rules-users(a)lists.jboss.org&gt; cc Subject [rules-users] java.lang.OutOfMemoryError: Java heap space on Drools 4.0.4 Hi, I am getting the following outofmemory error after upgrading from 3.0.x to 4.0.4. I use to never get this error before. I don't think this is because of system memory issue. I have 8 GB RAM Linux Machine with JBOSS Server. Do anybody have this issue if so what is the resolution. 22:22:38,177 ERROR [STDERR] Exception in thread "Timer-354" 22:22:38,177 ERROR [STDERR] java.lang.OutOfMemoryError: Java heap space 22:22:38,177 ERROR [STDERR] at java.lang.StringCoding.trim(StringCoding.java:64) 22:22:38,177 ERROR [STDERR] at java.lang.StringCoding.access$400(StringCoding.java:37) 22:22:38,177 ERROR [STDERR] at java.lang.StringCoding$CharsetSE.encode(StringCoding.java:353) 22:22:38,177 ERROR [STDERR] at java.lang.StringCoding.encode(StringCoding.java:378) 22:22:38,177 ERROR [STDERR] at java.lang.StringCoding.encode(StringCoding.java:384) 22:22:38,177 ERROR [STDERR] at java.lang.String.getBytes(String.java:829) 22:22:38,183 ERROR [STDERR] at org.drools.rule.builder.dialect.java.JavaDialect.addClassCompileTask(JavaDialect.java:472)22:22:38,183 ERROR [STDERR] at org.drools.rule.builder.dialect.java.JavaDialect.addFunction(JavaDialect.java:442) 22:22:38,183 ERROR [STDERR] at org.drools.compiler.PackageBuilder.addFunction(PackageBuilder.java:406) 22:22:38,183 ERROR [STDERR] at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:289) 22:22:38,183 ERROR [STDERR] at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:167) Thanks, Shiva Tel: +91-40-27782000 Ext: 4259 _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users