clamp size() int overflow in composite and multi-valued classes (#710) CompositeCollection, CompositeSet and CompositeMap sum the sizes of their composited containers into an int, and AbstractMultiValuedMap and AbstractMultiSet sum value collection sizes and entry counts the same way, so a total past Integer.MAX_VALUE wraps negative and size() breaks the Collection contract. Sum into a long and clamp the return to Integer.MAX_VALUE. Follow-up to #705 covering the remaining int/long size mismatches.
The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.
More information can be found on the Apache Commons Collections homepage. The Javadoc can be browsed. Questions related to the usage of Apache Commons Collections should be posted to the user mailing list.
You can download source and binaries from our download page.
Alternatively, you can pull it from the central Maven repositories:
<dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-collections4</artifactId> <version>4.5.0</version> </dependency>
Building requires a Java JDK and Apache Maven. The required Java version is found in the pom.xml as the maven.compiler.source property.
From a command shell, run mvn without arguments to invoke the default Maven goal to run all tests and checks.
We accept Pull Requests via GitHub. The developer mailing list is the main channel of communication for contributors. There are some guidelines which will make applying PRs easier for us:
mvn.mvn (by itself), this runs the default goal, which contains all build checks.mvn clean site -Dcommons.jacoco.haltOnFailure=falseIf you plan to contribute on a regular basis, please consider filing a contributor license agreement. You can learn more about contributing via GitHub in our contribution guidelines.
This code is licensed under the Apache License v2.
See the NOTICE.txt file for required notices and attributions.
You like Apache Commons Collections? Then donate back to the ASF to support development.
Please see the list of components