[jira] [Created] (JEXL-191) Jexl3 unsolvable property exception when using enum

["Constantin Mitocaru (JIRA)" <ji...@apache.org>]

Constantin Mitocaru created JEXL-191:
----------------------------------------

             Summary: Jexl3 unsolvable property exception when using enum
                 Key: JEXL-191
                 URL: https://issues.apache.org/jira/browse/JEXL-191
             Project: Commons JEXL
          Issue Type: Bug
    Affects Versions: 3.0
         Environment: This code used to work under jexl2
{code:java}
public enum Gender { MALE, FEMALE};

public static void main( String[] args ) throws ClassNotFoundException {
    JexlEngine jexl = new JexlEngine();
    Record r = new Record();
    r.setHeader(new RecordHeader());
    JexlContext jc = new MapContext();
    jc.set("r", r );
    jc.set("com.sytrue.objects.Gender", Gender.class );
    Expression e = jexl.createExpression( "r.header.gender=com.sytrue.objects.Gender.FEMALE" );
    System.out.println( e.evaluate(jc) );
}
{code}

but under jexl3 it throws an exception:

{code:java}
public static void main( String[] args ) throws ClassNotFoundException {
    JexlEngine jexl = new JexlBuilder().create();
    Record r = new Record();
    r.setHeader(new RecordHeader());
    JexlContext jc = new MapContext();
    jc.set("r", r );
    jc.set("com.sytrue.objects.Gender", Gender.class );
    JexlExpression e = jexl.createExpression( "r.header.gender=com.sytrue.objects.Gender.FEMALE" );
    System.out.println( e.evaluate(jc) );
}
{code}

The exception is:

{code}
Exception in thread "main" org.apache.commons.jexl3.JexlException$Property: com.sytrue.objects.record.app.JexlTestApp.main@1:42 unsolvable property 'FEMALE'
{code}

Temporary workaround is using the valueOf method:

{code:java}
JexlExpression e = jexl.createExpression( "r.header.gender=com.sytrue.objects.Gender.valueOf('FEMALE')" );
{code}

It seems that I no longer can access the enum type in jexl3.
Is there any reason this doesn't work anymore or it is a bug
            Reporter: Constantin Mitocaru
            Priority: Critical


I first logged a question on stack overflow:
http://stackoverflow.com/questions/36061706/jexl3-unsolvable-property-exception-when-using-enum

This code used to work under jexl2

public enum Gender { MALE, FEMALE};

public static void main( String[] args ) throws ClassNotFoundException {
    JexlEngine jexl = new JexlEngine();
    Record r = new Record();
    r.setHeader(new RecordHeader());
    JexlContext jc = new MapContext();
    jc.set("r", r );
    jc.set("com.sytrue.objects.Gender", Gender.class );
    Expression e = jexl.createExpression( "r.header.gender=com.sytrue.objects.Gender.FEMALE" );
    System.out.println( e.evaluate(jc) );
}
but under jexl3 it throws an exception:

public static void main( String[] args ) throws ClassNotFoundException {
    JexlEngine jexl = new JexlBuilder().create();
    Record r = new Record();
    r.setHeader(new RecordHeader());
    JexlContext jc = new MapContext();
    jc.set("r", r );
    jc.set("com.sytrue.objects.Gender", Gender.class );
    JexlExpression e = jexl.createExpression( "r.header.gender=com.sytrue.objects.Gender.FEMALE" );
    System.out.println( e.evaluate(jc) );
}
The exception is:

Exception in thread "main" org.apache.commons.jexl3.JexlException$Property: com.sytrue.objects.record.app.JexlTestApp.main@1:42 unsolvable property 'FEMALE'
I made it to work using the valueOf method:

JexlExpression e = jexl.createExpression( "r.header.gender=com.sytrue.objects.Gender.valueOf('FEMALE')" );
It seems that I no longer can access the enum type in jexl3. Is there any reason this doesn't work anymore or it is a bug





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