12.5. Creation of New Class Instances
A new class instance is explicitly created when evaluation of a class instance creation expression (§15.9) causes a class to be instantiated.
A new class instance may be implicitly created in the following situations:
• Loading of a class or interface that contains a String literal (§3.10.5) may create a new String object to represent that literal. (This might not occur if the same String has previously been interned (§3.10.5).)
• Execution of an operation that causes boxing conversion (§5.1.7). Boxing conversion may create a new object of a wrapper class associated with one of the primitive types.
• Execution of a string concatenation operator (§15.18.1) that is not part of a constant expression (§15.28 ...
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