Adding item to HashMap throws ArrayIndexOutofBoundsException in java 1.7.0_45

In my application, I have some code that puts elements in the HasSet

most classic way:

@OneToMany(fetch=FetchType.EAGER, cascade=CascadeType.ALL)
@XmlElementWrapper
private Set<ParameterDefinition> parameterDefinitions = new HashSet<ParameterDefinition>();

// .... in a method far below ...
    this.parameterDefinitions.add(createParameterDefinitionFor);

      

        
        
        
      

    

This code has been in use for two years and has never shown any sign of failure.

however, we recently moved our codebase to java 7 (there was a time). And from this step onwards, this exact instruction only fails * on our Linux machine using Suse 10 and Java 1.7.0_45 with the following stack trace.

  Daemon Thread [p: thread-pool-1; w: 9] (Suspended (exception java.lang.ArrayIndexOutOfBoundsException))   
        java.util.HashMap<K,V>.put(K, V) line: 498  
        java.util.HashSet<E>.add(E) line: 217   

      

        
        
        
      

    

Testing on Windows with any version of Java 7 does not provide this behavior.

So ... is there any reason for this strange behavior?