Tested method: MethodHandles.Lookup defineHiddenClass
Assertion: The value of this_class must be a valid index in the constant_pool table, and the entry at that index must be a valid CONSTANT_Class_info structure.

JVMS: 5.3.5. Deriving a Class from a class File Representation
 If the purported representation is not a ClassFile structure (§4.1, §4.8), loading throws an instance of ClassFormatError.

Expected exception:
ClassFormatError - if bytes is not a ClassFile structure

Thrown:
IllegalArgumentException - if bytes is not a class or interface or denotes a class in a different package than the lookup class



The constant pool is:

// this_class refers to NameAndType (not Class_info)
class javasoft/sqe/tests/api/java/lang/invoke/MethodHandles/Lookup/TestClass02n03 {
  0xCAFEBABE;
  0; // minor version
  59; // version
  [] { // Constant Pool
    ; // first element is empty
    Method #2 #3; // #1
    class #4; // #2
    NameAndType #5 #6; // #3
    Utf8 "java/lang/Object"; // #4
    Utf8 "<init>"; // #5
    Utf8 "()V"; // #6
    class #8; // #7
    Utf8 "javasoft/sqe/tests/api/java/lang/invoke/MethodHandles/Lookup/TestInterface02n01"; // #8
    String #10; // #9
    Utf8 "TestInterface02p01"; // #10
    class #12; // #11
    Utf8 "javasoft/sqe/tests/api/java/lang/invoke/MethodHandles/Lookup/TestClass02n03"; // #12
    Utf8 "Code"; // #13
    Utf8 "LineNumberTable"; // #14
    Utf8 "getString"; // #15
    Utf8 "()Ljava/lang/String;"; // #16
    Utf8 "SourceFile"; // #17
    Utf8 "TestClass02n03.java"; // #18
  } // Constant Pool

  0x0031; // access
  #3; // this_cpx #11 -> #3
  #2; // super_cpx

this byte code causes the exception:

Expected exception java.lang.ClassFormatError was not thrown by testcase "testDefineHiddenClass0106a"
"java.lang.IllegalArgumentException: <init> not in same package as lookup class: javasoft.sqe.tests.api.java.lang.invoke.MethodHandles.Lookup.DefineHiddenClass" was thrown instead
java.lang.IllegalArgumentException: <init> not in same package as lookup class: javasoft.sqe.tests.api.java.lang.invoke.MethodHandles.Lookup.DefineHiddenClass
at java.base/java.lang.invoke.MethodHandleStatics.newIllegalArgumentException(MethodHandleStatics.java:131)
at java.base/java.lang.invoke.MethodHandles$Lookup.validateAndGetClassName(MethodHandles.java:2037)
at java.base/java.lang.invoke.MethodHandles$Lookup.makeHiddenClassDefiner(MethodHandles.java:2102)
at java.base/java.lang.invoke.MethodHandles$Lookup.defineHiddenClass(MethodHandles.java:1961)