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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

OBJ08OBJ04-EX1: Sensitive classes should not be cloneable, per rule "OBJ03-J. Sensitive classes must not let themselves be copied."

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Rule	Severity	Likelihood	Remediation Cost	Priority	Level
OBJ08 OBJ04-J	low	likely	medium	P6	L2

Automated Detection

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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="33880be97adecbeb-88810f8c-4d4c40ea-988ca697-d8d745c2acc84ac95563e287"><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="068c52da98b3b3c3-b549c55a-4337446c-b813a798-71fe85631c0774e97af7640e"><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="458db27b166c765a-d7f0ce2f-44954dd3-bf87a3e6-d87270e6b37a7d7b12391b45"><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="b7db34863af742f5-c478c0ec-4a844bff-b92290fe-f7028a768e8939c15a10931f"><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="69dfa483ba48f7bc-531f2a1a-4320435e-aa74b654-0765b49456d89f7c9b1b14a0"><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="aaa752c50c115f94-7577ecb1-4d2449cf-8869aea0-9c699108d543d42b51cdf80d"><ac:plain-text-body><![CDATA[	[[Security 2006	AA. Bibliography#Security 06]]	]]></ac:plain-text-body></ac:structured-macro>

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