rythmengine: Illegal type in constant pool

We’re experiencing the following issue once after each reboot of of our application (i.e. invoking the template a 2nd time doesn’t reproduce the issue:

Jun 15 14:31:00:  2015-06-15 14:30:59,936 [qtp12209492-23] ERROR s.q.m.r.s.RestResponseEntityExceptionHandler [1000000000000000001:-101] - (class: ASMAccessorImpl_10673308271434378659880, method: getKnownEgressType signature: ()Ljava/lang/Class;) Illegal type in constant pool 
Jun 15 14:31:00:  Template: fifo.xml 
Jun 15 14:31:00:  Relevant template source lines: 
Jun 15 14:31:00:  ------------------------------------------------- 
Jun 15 14:31:00:     9:       <fifos> 
Jun 15 14:31:00:     10:         @for (FifoGroup g : groups) { 
Jun 15 14:31:00:     11:         <fifo name="@g.getName()" importance="0"> 
Jun 15 14:31:00:     12:           @for (String member : g.getMembers()) { 
Jun 15 14:31:00:  >> 13:           g.getName
Jun 15 14:31:00:     14:           } 
Jun 15 14:31:00:     15:         </fifo> 
Jun 15 14:31:00:     16:         } 
Jun 15 14:31:00:     17:       </fifos> 
Jun 15 14:31:00:  Relevant Java source lines: 
Jun 15 14:31:00:  ------------------------------------------------- 
un 15 14:31:00:     167: try{pe(g.getName());} catch (RuntimeException e) {__handleTemplateExecutionException(e);}  //line: 13 
Jun 15 14:31:00:  >> 170: try{pe((__eval("g.getName()")));} catch (RuntimeException e) {__handleTemplateExecutionException(e);}  //line: 13 
Jun 15 14:31:00:  java.lang.VerifyError: (class: ASMAccessorImpl_10673308271434378659880, method: getKnownEgressType signature: ()Ljava/lang/Class;) Illegal type in constant pool 
Jun 15 14:31:00:    at java.lang.Class.getDeclaredConstructors0(Native Method) ~[na:1.8.0_40] 
Jun 15 14:31:00:    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) ~[na:1.8.0_40] 
Jun 15 14:31:00:    at java.lang.Class.getConstructor0(Class.java:3075) ~[na:1.8.0_40] 
Jun 15 14:31:00:    at java.lang.Class.newInstance(Class.java:412) ~[na:1.8.0_40] 
Jun 15 14:31:00:    at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer._initializeAccessor(ASMAccessorOptimizer.java:725) ~[mvel2-2.1.5.Final.jar:na] 
Jun 15 14:31:00:    at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.compileAccessor(ASMAccessorOptimizer.java:859) ~[mvel2-2.1.5.Final.jar:na] 
Jun 15 14:31:00:    at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.optimizeAccessor(ASMAccessorOptimizer.java:243) ~[mvel2-2.1.5.Final.jar:na] 
Jun 15 14:31:00:    at org.mvel2.optimizers.dynamic.DynamicGetAccessor.optimize(DynamicGetAccessor.java:90) ~[mvel2-2.1.5.Final.jar:na] 
Jun 15 14:31:00:    at org.mvel2.optimizers.dynamic.DynamicGetAccessor.getValue(DynamicGetAccessor.java:64) ~[mvel2-2.1.5.Final.jar:na] 
Jun 15 14:31:00:    at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108) ~[mvel2-2.1.5.Final.jar:na] 

For reference, this is the environment:

$ java -version
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b26)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
$ uname -a
Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u2 x86_64 GNU/Linux

Has anybody come across this type of issue before?