Com.sun.jdi.InvocationException method call occurred in JDK8

Question

I port my application from JDK 7 to JDK 8. At runtime, I encounter an exception com.sun.jdi.InvocationException occurred invoking methodwhen an instance is created TestField, as shown below. I get an exception during debugging and cannot find the reason for this. I suspect that a NullPointerException is occurring, and an InvocationException is masking it. I have Object methods overridden in TestField.

The utility classes below are part of the commons-langjar.

HashCodeBuilder
EqualsBuilder
ToStringBuilder

public class TestField {

private String name;

private Rules rules;

public TestField(String name, Rules rules)

{   this.name = name;
    this.rules = rules;
}

public String toString() {
    return new ToStringBuilder(this)
    .append("\n name", this.getName())
    .append("\n Rules", this.getRules())
    .append("\n ")
    .toString();
}

public boolean equals(Object other) {
    if ( !(other instanceof TestField) ) return false;
    TestField castOther = (TestField) other;
    return new EqualsBuilder()
        .append(this.getName(), castOther.getName())
                .append(this.getRules(), castOther.getRules())
        .isEquals();
}

public int hashCode() {
    return new HashCodeBuilder()
        .append(this.getName())            
        .append(this.getRules())            
        .toHashCode();
}   
}

Has anyone encountered such a problem. Can someone help me solve the same thing. Thank.

Answer 1

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