Java's file-manipulation functions often indicate failure with a return value , rather than throwing an exception. The Java Tutorial for Java 7 notes:
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Consequently, file operations can silently fail if the methods' return values are ignored. Java programs must check the return values of method methods that perform file I/O (this is a specific instance of rule EXP00-J. Do not ignore values returned by methods).)
Noncompliant Code Example (delete()
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This noncompliant code example attempts to delete a specified file |
but gives no indication of its success. The \[[API 2006|AA. Bibliography#API 06]\] requires {{File.delete()}} to only throw a {{SecurityException}} if the program is not authorized to delete the file. No other exceptions are thrown |
, so the deletion can silently fail. |
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File file = /* initialize */ file.delete(); |
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Bibliography
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="01ffd590-d0e5-4ba7-a61b-92d48b428366"><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="33fb147cec43ec0b-d0d60b38-4d9c4a06-8b14a562-f773246519f5361b06162938"><ac:plain-text-body><![CDATA[ | [[J2SE 2011 | AA. Bibliography#J2SE 11]] | | ]]></ac:plain-text-body></ac:structured-macro> |
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="3e2020ee1b964333-3e240872-467c462d-a632b4e2-fffe66bf6197dd2e053b8daa"><ac:plain-text-body><![CDATA[ | [[Seacord 2005a | AA. Bibliography#Seacord 05]] | Chapter 7, "File I/O" | ]]></ac:plain-text-body></ac:structured-macro> |
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