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Code Block

bgColor	#ccccff

class UnmodifiableDateView extends Date {
  private Date date;

  public UnmodifiableDateView(Date date) {
    this.date = date;
  }

  public void setTime(long date) {
    throw new UnsupportedOperationException();
  }

  // Override all other mutator methods to throw UnsupportedOperationException
}

public final class MutableClass {
  private Date date;

  public MutableClass(Date d) {
    this.date = d;
  }

  public void setDate(Date d) {
    this.date = (Date) d.clone();
  }

  public UnmodifiableDateView getDate() {
    return new UnmodifiableDateView(date);
  }
}

Exceptions

OBJ04-EX1EX0: Sensitive classes should not be cloneable, per rule "OBJ03-J. Sensitive classes must not let themselves be copied."

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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="ae4af7829a51a939-b59b8555-451d4ce7-ba93a2e5-87eccef9b573878bb955fdbc"><ac:plain-text-body><![CDATA[

[[MITRE 2009

AA. Bibliography#MITRE 09]]

[CWE-374

http://cwe.mitre.org/data/definitions/374.html] "Passing Mutable Objects to an Untrusted Method" and [CWE-375

http://cwe.mitre.org/data/definitions/375.html] "Returning a Mutable Object to an Untrusted Caller"

]]></ac:plain-text-body></ac:structured-macro>

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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="c088a4b49d7fbe72-6bcf2a65-4edb4cd7-ac93805b-4e230fa815dba8568c1ff185"><ac:plain-text-body><![CDATA[	[[API 2006	AA. Bibliography#API 06]]	[method clone()	http://java.sun.com/javase/6/docs/api/java/lang/Object.html#clone()]	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="9ed0d207a0d47153-7d29a7dc-44344f98-8f3bae83-e593378653043c3252ccf1a4"><ac:plain-text-body><![CDATA[	[[Bloch 2008	AA. Bibliography#Bloch 08]]	Item 39: Make defensive copies when needed and Item 11: Override clone judiciously	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="0bb8f9831b94e654-aa662aea-42c948e8-9f469061-71ddf405e4481cbe9207a21b"><ac:plain-text-body><![CDATA[	[[SCG 2007	AA. Bibliography#SCG 07]]	Guideline 2-2 Support copy functionality for a mutable class	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="5a22c4f6d2047625-253a65b6-49f5408a-9693b45c-b4552872ae2708ea475313c1"><ac:plain-text-body><![CDATA[	[[SCG 2009	AA. Bibliography#SCG 09]]	Guideline 2-3 Support copy functionality for a mutable class	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="fae5ad0998a0fa54-ba4f3e91-4b884754-b898957e-4c1dd565bba0b335d14208f2"><ac:plain-text-body><![CDATA[	[[Security 2006	AA. Bibliography#Security 06]]	]]></ac:plain-text-body></ac:structured-macro>

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Exceptions