How am I understanding char comparison? If so, is there a way to convert the types in JSTL so that they are comparable?

From section 1.8.2 EL 2.2 Specification (attention):

1,8,2   A {==,!=,eq,ne} B

• If A==B
  
  , use the operator
• If A

null
  
  or B
  
  is null
  
  return false
  
  for ==
  
  or eq
  
  , true
  
  for !=
  
  or ne
  
  .
• If A
  
  or B
  
  equal BigDecimal
  
  , force and A
  
  , and B
  
  - BigDecimal
  
  , and then:
  • If the operator is ==
    
    or eq
    
    , returnA.equals(B)
    
    
  • If the operator is !=
    
    or ne
    
    , return!A.equals(B)
    
    
• If A
  
  either B
  
  equals Float
  
  or Double
  
  enforces both A
  
  and B
  
  before Double
  
  , apply operator
• If A
  
  or B
  
  equal BigInteger
  
  , force and A
  
  , and B
  
  - BigInteger
  
  , and then:
  • If the operator is ==
    
    or eq
    
    , returnA.equals(B)
    
    
  • If the operator is !=
    
    or ne
    
    , return!A.equals(B)
    
    
• If you A
  
  or B
  
  there Byte
  
  , Short
  
  , Character
  
  , Integer
  
  or Long
  
  are forced to like A
  
  and B
  
  to Long
  
  apply the operator
• If A
  
  or B
  
  equals Boolean
  
  force both A
  
  and B
  
  before Boolean
  
  , apply operator
• If A
  
  or B
  
  is enum
  
  , enforce both A
  
  , and B
  
  before enum
  
  , use the operator
• If A
  
  or B
  
  equal String
  
  , then forcing both A
  
  , and B
  
  to String
  
  , compare lexically
• Otherwise, if A.equals(B)
  
  an error occurs on the call , the error
• Otherwise apply the operator to the result A.equals(B)
  
  

char

/ Character

is in EL, thus, it is forced and is evaluated as Long

. It can never be equal to a string literal '1'

.

When are there both getActive () and isActive (), which is invoked by EL translation? It seems isActive () is getting priority, but is there an officially registered order for this?

From chapter 8.3.2 of the Javabeans Specification (emphasis mine):

8.3.2 Boolean properties

Additionally, for boolean properties, we let the getter method match the pattern:

public boolean is<PropertyName>()

;

This "is <PropertyName>" method can be provided instead of the "get <PropertyName>" method, or it can be provided in addition to the "get <PropertyName>" method.

In any case, if the "is <PropertyName>" method is present for a boolean property, we will use the "is <PropertyName>" method to read the property value.

An example of a boolean property could be:

    public boolean isMarsupial();
    public void setMarsupial(boolean m);

      

        
        
        
      

    

This, in conjunction with the dot immediately after the underlined dot in the previous chapter 1.8.2 EL spec,

• If A
  
  or B
  
  equals Boolean
  
  force both A
  
  and B
  
  before Boolean
  
  , apply operator

will give the priority of the method isXxx()

.