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[BAEL-19088] - Move articles out of core-java-io part 3
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‎core-java-modules/core-java-io-2/.gitignore‎

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# Intellij
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.idea/
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*.iml
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0.*
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# Files generated by integration tests
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# *.txt
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/temp

‎core-java-modules/core-java-io-2/README.md‎

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## Core Java IO
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### Relevant Articles:
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This module contains articles about core Java input and output (IO)
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### Relevant Articles:
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- [Create a File in a Specific Directory in Java](https://www.baeldung.com/java-create-file-in-directory)
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- [How to Read a Large File Efficiently with Java](https://www.baeldung.com/java-read-lines-large-file)
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- [Java – Write to File](https://www.baeldung.com/java-write-to-file)
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- [FileNotFoundException in Java](https://www.baeldung.com/java-filenotfound-exception)
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- [Delete the Contents of a File in Java](https://www.baeldung.com/java-delete-file-contents)
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- [List Files in a Directory in Java](https://www.baeldung.com/java-list-directory-files)
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- [Java – Append Data to a File](https://www.baeldung.com/java-append-to-file)
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- [How to Copy a File with Java](https://www.baeldung.com/java-copy-file)
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- [Create a Directory in Java](https://www.baeldung.com/java-create-directory)
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- [[<-- Prev]](/core-java-modules/core-java-io)

‎core-java-modules/core-java-io-2/pom.xml‎

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<dependencies>
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<!-- utils -->
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<dependency>
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<groupId>net.sourceforge.collections</groupId>
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<artifactId>collections-generic</artifactId>
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<version>${collections-generic.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-collections4</artifactId>
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<version>${commons-collections4.version}</version>
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<groupId>com.google.guava</groupId>
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<artifactId>guava</artifactId>
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<version>${guava.version}</version>
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</dependency>
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<!-- utils -->
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<dependency>
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<groupId>commons-io</groupId>
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<artifactId>commons-io</artifactId>
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<version>${commons-io.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>${commons-lang3.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-math3</artifactId>
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<version>${commons-math3.version}</version>
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</dependency>
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<dependency>
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<groupId>org.decimal4j</groupId>
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<artifactId>decimal4j</artifactId>
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<version>${decimal4j.version}</version>
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</dependency>
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<dependency>
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<groupId>org.bouncycastle</groupId>
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<artifactId>bcprov-jdk15on</artifactId>
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<version>${bouncycastle.version}</version>
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</dependency>
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<dependency>
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<groupId>org.unix4j</groupId>
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<artifactId>unix4j-command</artifactId>
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<version>${unix4j.version}</version>
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</dependency>
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<dependency>
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<groupId>com.googlecode.grep4j</groupId>
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<artifactId>grep4j</artifactId>
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<version>${grep4j.version}</version>
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</dependency>
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<!-- web -->
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<!-- marshalling -->
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>${jackson.version}</version>
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</dependency>
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<!-- logging -->
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<dependency>
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<groupId>log4j</groupId>
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<artifactId>log4j-over-slf4j</artifactId>
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<version>${org.slf4j.version}</version>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>${lombok.version}</version>
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<scope>provided</scope>
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</dependency>
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<!-- test scoped -->
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<dependency>
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<groupId>org.assertj</groupId>
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<artifactId>assertj-core</artifactId>
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<version>${assertj.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>com.jayway.awaitility</groupId>
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<artifactId>awaitility</artifactId>
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<version>${avaitility.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>commons-codec</groupId>
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<artifactId>commons-codec</artifactId>
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<version>${commons-codec.version}</version>
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</dependency>
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<dependency>
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<groupId>org.javamoney</groupId>
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<artifactId>moneta</artifactId>
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<version>${moneta.version}</version>
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</dependency>
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<dependency>
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<groupId>org.owasp.esapi</groupId>
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<artifactId>esapi</artifactId>
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<version>${esapi.version}</version>
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</dependency>
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<dependency>
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<groupId>com.sun.messaging.mq</groupId>
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<artifactId>fscontext</artifactId>
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<version>${fscontext.version}</version>
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</dependency>
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<dependency>
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<groupId>com.codepoetics</groupId>
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<artifactId>protonpack</artifactId>
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<version>${protonpack.version}</version>
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</dependency>
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<dependency>
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<groupId>one.util</groupId>
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<artifactId>streamex</artifactId>
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<version>${streamex.version}</version>
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</dependency>
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<dependency>
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<groupId>io.vavr</groupId>
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<artifactId>vavr</artifactId>
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<version>${vavr.version}</version>
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</dependency>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-core</artifactId>
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<version>${jmh-core.version}</version>
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</dependency>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-generator-annprocess</artifactId>
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<version>${jmh-generator-annprocess.version}</version>
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</dependency>
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<dependency>
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<groupId>org.hsqldb</groupId>
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<artifactId>hsqldb</artifactId>
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<version>${hsqldb.version}</version>
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<scope>runtime</scope>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.asynchttpclient/async-http-client -->
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<dependency>
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<groupId>org.asynchttpclient</groupId>
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<artifactId>async-http-client</artifactId>
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<version>${async-http-client.version}</version>
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</dependency>
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<dependency>
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<groupId>com.opencsv</groupId>
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<artifactId>opencsv</artifactId>
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<version>${opencsv.version}</version>
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<scope>test</scope>
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</dependency>
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<!-- Mime Type Resolution Libraries -->
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<dependency>
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<groupId>org.apache.tika</groupId>
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<artifactId>tika-core</artifactId>
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<version>${tika.version}</version>
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</dependency>
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<dependency>
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<groupId>net.sf.jmimemagic</groupId>
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<artifactId>jmimemagic</artifactId>
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<version>${jmime-magic.version}</version>
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</dependency>
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<build>
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</resource>
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</resources>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>${exec-maven-plugin.version}</version>
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<configuration>
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<executable>java</executable>
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<mainClass>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</mainClass>
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<arguments>
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<argument>-Xmx300m</argument>
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<argument>-XX:+UseParallelGC</argument>
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<argument>-classpath</argument>
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<classpath />
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<argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
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</arguments>
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</configuration>
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</plugin>
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<plugin>
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</plugins>
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</build>
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<profiles>
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<profile>
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<id>integration</id>
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<build>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<executions>
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<execution>
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<id>run-benchmarks</id>
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<!-- <phase>integration-test</phase> -->
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<phase>none</phase>
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<goals>
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<goal>exec</goal>
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</goals>
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<configuration>
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<classpathScope>test</classpathScope>
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<executable>java</executable>
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<arguments>
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<argument>-classpath</argument>
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<classpath />
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<argument>org.openjdk.jmh.Main</argument>
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<argument>.*</argument>
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</arguments>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</profile>
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</profiles>
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<properties>
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<!-- util -->
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<bouncycastle.version>1.55</bouncycastle.version>
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<commons-codec.version>1.10</commons-codec.version>
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<commons-math3.version>3.6.1</commons-math3.version>
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<decimal4j.version>1.0.3</decimal4j.version>
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<commons-collections4.version>4.1</commons-collections4.version>
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<collections-generic.version>4.01</collections-generic.version>
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<unix4j.version>0.4</unix4j.version>
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<grep4j.version>1.8.7</grep4j.version>
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<fscontext.version>4.6-b01</fscontext.version>
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<protonpack.version>1.13</protonpack.version>
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<streamex.version>0.6.5</streamex.version>
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<vavr.version>0.9.0</vavr.version>
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<opencsv.version>4.1</opencsv.version>
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<!-- testing -->
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<assertj.version>3.6.1</assertj.version>
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<avaitility.version>1.7.0</avaitility.version>
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<!-- maven plugins -->
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<maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
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<hsqldb.version>2.4.0</hsqldb.version>
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<esapi.version>2.1.0.1</esapi.version>
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<jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>
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<async-http-client.version>2.4.5</async-http-client.version>
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<!-- Mime Type Libraries -->
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<tika.version>1.18</tika.version>
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<jmime-magic.version>0.1.5</jmime-magic.version>
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</properties>
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</project>

core-java-modules/core-java-io/src/main/java/com/baeldung/files/ListFiles.java renamed to core-java-modules/core-java-io-2/src/main/java/com/baeldung/listfiles/ListFiles.java

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package com.baeldung.files;
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package com.baeldung.listfiles;
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import java.io.File;
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import java.io.IOException;

core-java-modules/core-java-io/src/test/java/com/baeldung/file/FilesManualTest.java renamed to core-java-modules/core-java-io-2/src/test/java/com/baeldung/appendtofile/AppendToFileManualTest.java

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package com.baeldung.file;
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package com.baeldung.appendtofile;
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import static org.assertj.core.api.Assertions.assertThat;
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import org.junit.Before;
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import org.junit.Test;
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import com.baeldung.util.StreamUtils;
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public class FilesManualTest {
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public class AppendToFileManualTest {
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public static final String fileName = "src/main/resources/countries.properties";
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core-java-modules/core-java-io/src/main/java/com/baeldung/util/StreamUtils.java renamed to core-java-modules/core-java-io-2/src/test/java/com/baeldung/appendtofile/StreamUtils.java

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package com.baeldung.util;
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package com.baeldung.appendtofile;
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import org.apache.commons.io.IOUtils;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.StringWriter;
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public class StreamUtils {
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public static String getStringFromInputStream(InputStream input) throws IOException {

core-java-modules/core-java-io/src/test/java/com/baeldung/copyfiles/FileCopierIntegrationTest.java renamed to core-java-modules/core-java-io-2/src/test/java/com/baeldung/copyfiles/FileCopierIntegrationTest.java

File renamed without changes.

‎core-java-modules/core-java-io-2/src/test/java/com/baeldung/createfiles/CreateFilesUnitTest.java‎

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import java.io.File;
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import java.io.IOException;
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import org.junit.BeforeClass;
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import static org.junit.Assert.assertFalse;
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public class CreateFilesUnitTest {
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@BeforeClass
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public static void clean() {
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File tempDirectory = new File(System.getProperty("java.io.tmpdir"));
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File file1 = new File(tempDirectory.getAbsolutePath() + "/testFile.txt");
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File file2 = new File(tempDirectory, "newFile.txt");
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File file3 = new File(tempDirectory.getAbsolutePath() + File.separator + "newFile2.txt");
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file1.delete();
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file2.delete();
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file3.delete();
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}
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@Test
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public void givenAnExistingDirectory_whenCreatingAFileWithAbsolutePath_thenFileIsCreated() throws IOException {
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File fileWithAbsolutePath = new File(tempDirectory.getAbsolutePath() + "/myDirectory/testFile.txt");
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assertFalse(fileWithAbsolutePath.exists());
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@Test
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public void givenAnExistingDirectory_whenCreatingANewDirectoryAndFileWithRelativePath_thenFileIsCreated() throws IOException {
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File tempDirectory = new File(System.getProperty("java.io.tmpdir"));
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File newFile = new File(tempDirectory.getAbsolutePath() + File.separator + "newFile.txt");
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File newFile = new File(tempDirectory.getAbsolutePath() + File.separator + "newFile2.txt");
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assertFalse(newFile.exists());
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core-java-modules/core-java-io/src/test/java/com/baeldung/file/FilesClearDataUnitTest.java renamed to core-java-modules/core-java-io-2/src/test/java/com/baeldung/deletecontents/FilesClearDataUnitTest.java

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package com.baeldung.deletecontents;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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public class FilesClearDataUnitTest {
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public static final String FILE_PATH = "src/test/resources/fileexample.txt";

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