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bgColor	#CCCCFF

class Foo {
  private volatile Helper helper;

  public Helper getHelper() {
    return helper;
  }

  public void initialize() {
    helper = new Helper(42);
  }
}

// Mutable but thread-safe Helper
public class Helper {
  private volatile int n;
  private final Object lock = new Object();

  public Helper(int n) {
    this.n = n;

  }

  public void setN(int value) {
    synchronized (lock) {
      n = value;
    }
  }
}

...

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="6bd70b40e7da118c-b5e10b6e-40f8415e-a7eab82c-4132b2d3d580f8d21c000c07"><ac:plain-text-body><![CDATA[	[[API 2006	AA. Bibliography#API 06]]		]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="80451f48b90ac0ce-8397450d-43544c86-b50d8200-5124ce6eb98424bb953d6856"><ac:plain-text-body><![CDATA[	[[Bloch 2001	AA. Bibliography#Bloch 01]]	Item 48: "Synchronize access to shared mutable data"	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="768160e334c6c5f5-7674d233-469447d0-98b59401-9e28b1bfe0acc46ce5e42b54"><ac:plain-text-body><![CDATA[	[[Goetz 2006	AA. Bibliography#Goetz 06]]	Section 3.5.3 "Safe Publication Idioms"	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="ac1e219cf064fcc3-f12612f2-44d040a3-8eafaf84-7930b2304dfcdcda77b16269"><ac:plain-text-body><![CDATA[	[[Goetz 2007	AA. Bibliography#Goetz 07]]	Pattern #2: "one-time safe publication"	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="ac0cedf45b01f1fe-93c76934-43a14eef-b334a67d-62cd0a1922fc66d7ddbb13c0"><ac:plain-text-body><![CDATA[	[[JPL 2006	AA. Bibliography#JPL 06]]	14.10.2. "Final Fields and Security"	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="d8b0876c8ceba1f8-e64fb080-4c724d7d-bfa9bf72-43d5e060278c17398b80eb7a"><ac:plain-text-body><![CDATA[	[[Pugh 2004	AA. Bibliography#Pugh 04]]		]]></ac:plain-text-body></ac:structured-macro>

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11. Thread-Safety Miscellaneous (TSM) TSM04-J. Document thread-safety and use annotations where applicable 12. Input Output (FIO)

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