### Question:
SyntaxChecker extends LoadableSchemaObject { @Override public boolean equals( Object o ) { if ( !super.equals( o ) ) { return false; } return o instanceof SyntaxChecker; } protected  SyntaxChecker( String oid ); protected  SyntaxChecker(); boolean isValidSyntax( Object value ); void setSchemaManager( SchemaManager schemaManager ); @Override boolean equals( Object o ); @Override String toString(); static final long serialVersionUID; }### Answer:
@Test public void testEqualsNull() throws Exception { assertFalse( objectClassA.equals( null ) ); }
@Test public void testNotEqualDiffValue() throws Exception { assertFalse( objectClassA.equals( objectClassC ) ); assertFalse( objectClassC.equals( objectClassA ) ); }