public long getOffset() {
		return _offset;
	}
NOTE: THE FOLLOWING TEXT EXTRACTED FROM JVMS7.PDF
<p>
Attributes are used in the ClassFile, field_info, method_info and 
Code_attribute structures of the class file format.
<p>
All attributes have the following general format:
<pre>
		attribute_info {
			u2 attribute_name_index;
			u4 attribute_length;
			u1 info[attribute_length];
		}
<pre>
<p>
For all attributes, the attribute_name_index must be a valid unsigned 
16-bit index into the constant pool of the class. The constant_pool entry
at attribute_name_index must be a CONSTANT_Utf8_info structure
representing the name of the attribute. 
<p>
The value of the attribute_length item
indicates the length of the subsequent information in bytes. The length does
not include the initial six bytes that contain the attribute_name_index and
attribute_length items.
<p>
Certain attributes are predefined as part of the class file specification. They are
listed in Table 4.21, accompanied by the version of the Java Platform, Standard
Edition ("Java SE") and the version of the class file format in which each first
appeared. Within the context of their use in this specification, that is, in the
attributes tables of the class file structures in which they appear, the names of
these predefined attributes are reserved. Of the predefined attributes:
<p>
The ConstantValue, Code and Exceptions attributes must be recognized and
correctly read by a class file reader for correct interpretation of the class file
by a Java virtual machine implementation.
<p>
The InnerClasses, EnclosingMethod and Synthetic attributes must be
recognized and correctly read by a class file reader in order to properly
implement the Java platform class libraries.
<p>
The RuntimeVisibleAnnotations, RuntimeInvisibleAnnotations, RuntimeVisibleParameterAnnotations,
RuntimeInvisibleParameterAnnotations and AnnotationDefault attributes
must be recognized and correctly read by a class file reader in order to properly
implement the Java platform class libraries, if the class file's version
number is 49.0 or above and the Java virtual machine implementation recognizes
class files whose version number is 49.0 or above.
<p>
The Signature attribute must be recognized and correctly read by a class file
reader if the class file's version number is 49.0 or above and the Java virtual
machine implementation recognizes class files whose version number is 49.0
or above.
<p>
The StackMapTable attribute must be recognized and correctly read by a class
file reader if the class file's version number is 50.0 or above and the Java virtual
machine implementation recognizes class files whose version number is 50.0
or above.
<p>
The BootstrapMethods attribute must be recognized and correctly read by a
class file reader if the class file's version number is 51.0 or above and the Java
virtual machine implementation recognizes class files whose version number
is 51.0 or above.
<p>
Use of the remaining predefined attributes is optional; a class file reader may use
the information they contain, or otherwise must silently ignore those attributes.
Ghidra/Processors/JVM/src/main/java/ghidra/javaclass/format/attributes/AbstractAttributeInfo.java