It looks like a bug in revapi to me: it does not know about type erasures.
I created a new Maven project that depends on Log4j Core 2.12.1 with:

public class App
{
    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );
        Builder builder = OutputStreamAppender.newBuilder();
    }
}

Then I ran that class against 2.13.-SNAPSHOT Core without recompiling and
it ran fine.

What am I missing?

Gary

On Thu, Aug 15, 2019 at 5:03 PM Ralph Goers <[email protected]>
wrote:

> I believe you have not read this thread. I am not talking about the bug
> you fixed. I am talking the compatibility breakage you created.
>
> 1. The backward compatibility breakage only occurred on the release-2.x
> branch because revapi is essentially disabled on master. Too much has
> changed to bother keeping track.
> 2. I haven’t seen any commit messages indicating you committed anything to
> fix this.
> 3. The build is still failing for me.  Try running mvn clean install
> -DskipTests in log4j-core. It will break for you too.
>
> Please look at the Jenkins build and fix the problems by either reverting
> the breakage or by adding the recommended changes to revapi.json to
> document why compatibility was broken.
>
> Ralph
>
>
> > On Aug 15, 2019, at 4:54 PM, Gary Gregory <[email protected]>
> wrote:
> >
> > I fixed it already in both branches.
> >
> > Gary
> >
> > On Thu, Aug 15, 2019, 10:42 Ralph Goers <[email protected]>
> wrote:
> >
> >> Gary,
> >>
> >> Are you going to look into this?
> >>
> >> Ralph
> >>
> >>> On Aug 14, 2019, at 9:17 AM, Ralph Goers <[email protected]>
> >> wrote:
> >>>
> >>> Any update on this? I’d like my builds to work again.
> >>>
> >>> Ralph
> >>>
> >>>> On Aug 13, 2019, at 4:29 PM, Ralph Goers <[email protected]>
> >> wrote:
> >>>>
> >>>> Gary,
> >>>>
> >>>> It seems this change broker compatibility. Please see the Jenkins
> >> failure. You either need to resolve the code so compatibility is
> maintained
> >> or update revapi.json with the recommended changes.
> >>>>
> >>>> Ralph
> >>>>
> >>>>> On Aug 13, 2019, at 2:06 PM, [email protected] wrote:
> >>>>>
> >>>>> This is an automated email from the ASF dual-hosted git repository.
> >>>>>
> >>>>> ggregory pushed a commit to branch release-2.x
> >>>>> in repository https://gitbox.apache.org/repos/asf/logging-log4j2.git
> >>>>>
> >>>>>
> >>>>> The following commit(s) were added to refs/heads/release-2.x by this
> >> push:
> >>>>>  new 4679a08  [LOG4J2-2673] OutputStreamAppender.Builder ignores
> >> setFilter().
> >>>>> 4679a08 is described below
> >>>>>
> >>>>> commit 4679a08d4899350f7ee19d050d2a96783b748066
> >>>>> Author: Gary Gregory <[email protected]>
> >>>>> AuthorDate: Tue Aug 13 17:06:48 2019 -0400
> >>>>>
> >>>>> [LOG4J2-2673] OutputStreamAppender.Builder ignores setFilter().
> >>>>>
> >>>>> Also allow a null output stream for convenience instead of an NPE.
> >>>>> ---
> >>>>> .../log4j/core/appender/OutputStreamAppender.java  | 351
> >> +++++++++++----------
> >>>>> .../core/appender/OutputStreamAppenderTest.java    | 230
> +++++++-------
> >>>>> src/changes/changes.xml                            |   3 +
> >>>>> 3 files changed, 302 insertions(+), 282 deletions(-)
> >>>>>
> >>>>> diff --git
> >>
> a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/OutputStreamAppender.java
> >>
> b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/OutputStreamAppender.java
> >>>>> index 7dfd187..dc6f352 100644
> >>>>> ---
> >>
> a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/OutputStreamAppender.java
> >>>>> +++
> >>
> b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/OutputStreamAppender.java
> >>>>> @@ -1,174 +1,177 @@
> >>>>> -/*
> >>>>> - * Licensed to the Apache Software Foundation (ASF) under one or
> more
> >>>>> - * contributor license agreements. See the NOTICE file distributed
> >> with
> >>>>> - * this work for additional information regarding copyright
> ownership.
> >>>>> - * The ASF licenses this file to You under the Apache license,
> >> Version 2.0
> >>>>> - * (the "License"); you may not use this file except in compliance
> >> with
> >>>>> - * the License. You may obtain a copy of the License at
> >>>>> - *
> >>>>> - *      http://www.apache.org/licenses/LICENSE-2.0
> >>>>> - *
> >>>>> - * Unless required by applicable law or agreed to in writing,
> software
> >>>>> - * distributed under the License is distributed on an "AS IS" BASIS,
> >>>>> - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> >> implied.
> >>>>> - * See the license for the specific language governing permissions
> and
> >>>>> - * limitations under the license.
> >>>>> - */
> >>>>> -package org.apache.logging.log4j.core.appender;
> >>>>> -
> >>>>> -import java.io.OutputStream;
> >>>>> -import java.io.Serializable;
> >>>>> -
> >>>>> -import org.apache.logging.log4j.core.Appender;
> >>>>> -import org.apache.logging.log4j.core.Core;
> >>>>> -import org.apache.logging.log4j.core.Filter;
> >>>>> -import org.apache.logging.log4j.core.Layout;
> >>>>> -import org.apache.logging.log4j.core.config.Property;
> >>>>> -import org.apache.logging.log4j.core.config.plugins.Plugin;
> >>>>> -import
> >> org.apache.logging.log4j.core.config.plugins.PluginBuilderFactory;
> >>>>> -import org.apache.logging.log4j.core.config.plugins.PluginFactory;
> >>>>> -import org.apache.logging.log4j.core.layout.PatternLayout;
> >>>>> -import org.apache.logging.log4j.core.util.CloseShieldOutputStream;
> >>>>> -
> >>>>> -/**
> >>>>> - * Appends log events to a given output stream using a layout.
> >>>>> - * <p>
> >>>>> - * Character encoding is handled within the Layout.
> >>>>> - * </p>
> >>>>> - */
> >>>>> -@Plugin(name = "OutputStream", category = Core.CATEGORY_NAME,
> >> elementType = Appender.ELEMENT_TYPE, printObject = true)
> >>>>> -public final class OutputStreamAppender extends
> >> AbstractOutputStreamAppender<OutputStreamManager> {
> >>>>> -
> >>>>> -    /**
> >>>>> -     * Builds OutputStreamAppender instances.
> >>>>> -     */
> >>>>> -    public static class Builder<B extends Builder<B>> extends
> >> AbstractOutputStreamAppender.Builder<B>
> >>>>> -            implements
> >> org.apache.logging.log4j.core.util.Builder<OutputStreamAppender> {
> >>>>> -
> >>>>> -        private Filter filter;
> >>>>> -
> >>>>> -        private boolean follow = false;
> >>>>> -
> >>>>> -        private final boolean ignoreExceptions = true;
> >>>>> -
> >>>>> -        private OutputStream target;
> >>>>> -
> >>>>> -        @Override
> >>>>> -        public OutputStreamAppender build() {
> >>>>> -            final Layout<? extends Serializable> layout =
> getLayout();
> >>>>> -            final Layout<? extends Serializable> actualLayout =
> >> layout == null ? PatternLayout.createDefaultLayout()
> >>>>> -                    : layout;
> >>>>> -            return new OutputStreamAppender(getName(), actualLayout,
> >> filter, getManager(target, follow, actualLayout),
> >>>>> -                    ignoreExceptions, getPropertyArray());
> >>>>> -        }
> >>>>> -
> >>>>> -        public B setFollow(final boolean shouldFollow) {
> >>>>> -            this.follow = shouldFollow;
> >>>>> -            return asBuilder();
> >>>>> -        }
> >>>>> -
> >>>>> -        public B setTarget(final OutputStream aTarget) {
> >>>>> -            this.target = aTarget;
> >>>>> -            return asBuilder();
> >>>>> -        }
> >>>>> -    }
> >>>>> -
> >>>>> -    /**
> >>>>> -     * Holds data to pass to factory method.
> >>>>> -     */
> >>>>> -    private static class FactoryData {
> >>>>> -        private final Layout<? extends Serializable> layout;
> >>>>> -        private final String name;
> >>>>> -        private final OutputStream os;
> >>>>> -
> >>>>> -        /**
> >>>>> -         * Builds instances.
> >>>>> -         *
> >>>>> -         * @param os
> >>>>> -         *            The OutputStream.
> >>>>> -         * @param type
> >>>>> -         *            The name of the target.
> >>>>> -         * @param layout
> >>>>> -         *            A Serializable layout
> >>>>> -         */
> >>>>> -        public FactoryData(final OutputStream os, final String type,
> >> final Layout<? extends Serializable> layout) {
> >>>>> -            this.os = os;
> >>>>> -            this.name = type;
> >>>>> -            this.layout = layout;
> >>>>> -        }
> >>>>> -    }
> >>>>> -
> >>>>> -    /**
> >>>>> -     * Creates the manager.
> >>>>> -     */
> >>>>> -    private static class OutputStreamManagerFactory implements
> >> ManagerFactory<OutputStreamManager, FactoryData> {
> >>>>> -
> >>>>> -        /**
> >>>>> -         * Creates an OutputStreamManager.
> >>>>> -         *
> >>>>> -         * @param name
> >>>>> -         *            The name of the entity to manage.
> >>>>> -         * @param data
> >>>>> -         *            The data required to create the entity.
> >>>>> -         * @return The OutputStreamManager
> >>>>> -         */
> >>>>> -        @Override
> >>>>> -        public OutputStreamManager createManager(final String name,
> >> final FactoryData data) {
> >>>>> -            return new OutputStreamManager(data.os, data.name,
> >> data.layout, true);
> >>>>> -        }
> >>>>> -    }
> >>>>> -
> >>>>> -    private static OutputStreamManagerFactory factory = new
> >> OutputStreamManagerFactory();
> >>>>> -
> >>>>> -    /**
> >>>>> -     * Creates an OutputStream Appender.
> >>>>> -     *
> >>>>> -     * @param layout
> >>>>> -     *            The layout to use or null to get the default
> layout.
> >>>>> -     * @param filter
> >>>>> -     *            The Filter or null.
> >>>>> -     * @param target
> >>>>> -     *            an output stream.
> >>>>> -     * @param follow
> >>>>> -     *            If true will follow changes to the underlying
> >> output stream.
> >>>>> -     *            Use false as the default.
> >>>>> -     * @param name
> >>>>> -     *            The name of the Appender (required).
> >>>>> -     * @param ignore
> >>>>> -     *            If {@code "true"} (default) exceptions encountered
> >> when
> >>>>> -     *            appending events are logged; otherwise they are
> >> propagated to
> >>>>> -     *            the caller. Use true as the default.
> >>>>> -     * @return The ConsoleAppender.
> >>>>> -     */
> >>>>> -    @PluginFactory
> >>>>> -    public static OutputStreamAppender createAppender(Layout<?
> >> extends Serializable> layout, final Filter filter,
> >>>>> -            final OutputStream target, final String name, final
> >> boolean follow, final boolean ignore) {
> >>>>> -        if (name == null) {
> >>>>> -            LOGGER.error("No name provided for
> OutputStreamAppender");
> >>>>> -            return null;
> >>>>> -        }
> >>>>> -        if (layout == null) {
> >>>>> -            layout = PatternLayout.createDefaultLayout();
> >>>>> -        }
> >>>>> -        return new OutputStreamAppender(name, layout, filter,
> >> getManager(target, follow, layout), ignore, null);
> >>>>> -    }
> >>>>> -
> >>>>> -    private static OutputStreamManager getManager(final OutputStream
> >> target, final boolean follow,
> >>>>> -            final Layout<? extends Serializable> layout) {
> >>>>> -        final OutputStream os = new CloseShieldOutputStream(target);
> >>>>> -        final String managerName = target.getClass().getName() + "@"
> >> + Integer.toHexString(target.hashCode()) + '.'
> >>>>> -                + follow;
> >>>>> -        return OutputStreamManager.getManager(managerName, new
> >> FactoryData(os, managerName, layout), factory);
> >>>>> -    }
> >>>>> -
> >>>>> -    @PluginBuilderFactory
> >>>>> -    public static Builder newBuilder() {
> >>>>> -        return new Builder();
> >>>>> -    }
> >>>>> -
> >>>>> -    private OutputStreamAppender(final String name, final Layout<?
> >> extends Serializable> layout, final Filter filter,
> >>>>> -            final OutputStreamManager manager, final boolean
> >> ignoreExceptions, final Property[] properties) {
> >>>>> -        super(name, layout, filter, ignoreExceptions, true,
> >> properties, manager);
> >>>>> -    }
> >>>>> -
> >>>>> -}
> >>>>> +/*
> >>>>> + * Licensed to the Apache Software Foundation (ASF) under one or
> more
> >>>>> + * contributor license agreements. See the NOTICE file distributed
> >> with
> >>>>> + * this work for additional information regarding copyright
> ownership.
> >>>>> + * The ASF licenses this file to You under the Apache license,
> >> Version 2.0
> >>>>> + * (the "License"); you may not use this file except in compliance
> >> with
> >>>>> + * the License. You may obtain a copy of the License at
> >>>>> + *
> >>>>> + *      http://www.apache.org/licenses/LICENSE-2.0
> >>>>> + *
> >>>>> + * Unless required by applicable law or agreed to in writing,
> software
> >>>>> + * distributed under the License is distributed on an "AS IS" BASIS,
> >>>>> + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> >> implied.
> >>>>> + * See the license for the specific language governing permissions
> and
> >>>>> + * limitations under the license.
> >>>>> + */
> >>>>> +package org.apache.logging.log4j.core.appender;
> >>>>> +
> >>>>> +import java.io.OutputStream;
> >>>>> +import java.io.Serializable;
> >>>>> +
> >>>>> +import org.apache.logging.log4j.core.Appender;
> >>>>> +import org.apache.logging.log4j.core.Core;
> >>>>> +import org.apache.logging.log4j.core.Filter;
> >>>>> +import org.apache.logging.log4j.core.Layout;
> >>>>> +import org.apache.logging.log4j.core.config.Property;
> >>>>> +import org.apache.logging.log4j.core.config.plugins.Plugin;
> >>>>> +import
> >> org.apache.logging.log4j.core.config.plugins.PluginBuilderFactory;
> >>>>> +import org.apache.logging.log4j.core.config.plugins.PluginFactory;
> >>>>> +import org.apache.logging.log4j.core.layout.PatternLayout;
> >>>>> +import org.apache.logging.log4j.core.util.CloseShieldOutputStream;
> >>>>> +import org.apache.logging.log4j.core.util.NullOutputStream;
> >>>>> +
> >>>>> +/**
> >>>>> + * Appends log events to a given output stream using a layout.
> >>>>> + * <p>
> >>>>> + * Character encoding is handled within the Layout.
> >>>>> + * </p>
> >>>>> + */
> >>>>> +@Plugin(name = "OutputStream", category = Core.CATEGORY_NAME,
> >> elementType = Appender.ELEMENT_TYPE, printObject = true)
> >>>>> +public final class OutputStreamAppender extends
> >> AbstractOutputStreamAppender<OutputStreamManager> {
> >>>>> +
> >>>>> +    /**
> >>>>> +     * Builds OutputStreamAppender instances.
> >>>>> +     *
> >>>>> +     * @param <B>
> >>>>> +     *            The type to build.
> >>>>> +     */
> >>>>> +    public static class Builder<B extends Builder<B>> extends
> >> AbstractOutputStreamAppender.Builder<B>
> >>>>> +            implements
> >> org.apache.logging.log4j.core.util.Builder<OutputStreamAppender> {
> >>>>> +
> >>>>> +        private boolean follow = false;
> >>>>> +
> >>>>> +        private final boolean ignoreExceptions = true;
> >>>>> +
> >>>>> +        private OutputStream target;
> >>>>> +
> >>>>> +        @Override
> >>>>> +        public OutputStreamAppender build() {
> >>>>> +            final Layout<? extends Serializable> layout =
> getLayout();
> >>>>> +            final Layout<? extends Serializable> actualLayout =
> >> layout == null ? PatternLayout.createDefaultLayout()
> >>>>> +                    : layout;
> >>>>> +            return new OutputStreamAppender(getName(), actualLayout,
> >> getFilter(), getManager(target, follow, actualLayout),
> >>>>> +                    ignoreExceptions, getPropertyArray());
> >>>>> +        }
> >>>>> +
> >>>>> +        public B setFollow(final boolean shouldFollow) {
> >>>>> +            this.follow = shouldFollow;
> >>>>> +            return asBuilder();
> >>>>> +        }
> >>>>> +
> >>>>> +        public B setTarget(final OutputStream aTarget) {
> >>>>> +            this.target = aTarget;
> >>>>> +            return asBuilder();
> >>>>> +        }
> >>>>> +    }
> >>>>> +
> >>>>> +    /**
> >>>>> +     * Holds data to pass to factory method.
> >>>>> +     */
> >>>>> +    private static class FactoryData {
> >>>>> +        private final Layout<? extends Serializable> layout;
> >>>>> +        private final String name;
> >>>>> +        private final OutputStream os;
> >>>>> +
> >>>>> +        /**
> >>>>> +         * Builds instances.
> >>>>> +         *
> >>>>> +         * @param os
> >>>>> +         *            The OutputStream.
> >>>>> +         * @param type
> >>>>> +         *            The name of the target.
> >>>>> +         * @param layout
> >>>>> +         *            A Serializable layout
> >>>>> +         */
> >>>>> +        public FactoryData(final OutputStream os, final String type,
> >> final Layout<? extends Serializable> layout) {
> >>>>> +            this.os = os;
> >>>>> +            this.name = type;
> >>>>> +            this.layout = layout;
> >>>>> +        }
> >>>>> +    }
> >>>>> +
> >>>>> +    /**
> >>>>> +     * Creates the manager.
> >>>>> +     */
> >>>>> +    private static class OutputStreamManagerFactory implements
> >> ManagerFactory<OutputStreamManager, FactoryData> {
> >>>>> +
> >>>>> +        /**
> >>>>> +         * Creates an OutputStreamManager.
> >>>>> +         *
> >>>>> +         * @param name
> >>>>> +         *            The name of the entity to manage.
> >>>>> +         * @param data
> >>>>> +         *            The data required to create the entity.
> >>>>> +         * @return The OutputStreamManager
> >>>>> +         */
> >>>>> +        @Override
> >>>>> +        public OutputStreamManager createManager(final String name,
> >> final FactoryData data) {
> >>>>> +            return new OutputStreamManager(data.os, data.name,
> >> data.layout, true);
> >>>>> +        }
> >>>>> +    }
> >>>>> +
> >>>>> +    private static OutputStreamManagerFactory factory = new
> >> OutputStreamManagerFactory();
> >>>>> +
> >>>>> +    /**
> >>>>> +     * Creates an OutputStream Appender.
> >>>>> +     *
> >>>>> +     * @param layout
> >>>>> +     *            The layout to use or null to get the default
> layout.
> >>>>> +     * @param filter
> >>>>> +     *            The Filter or null.
> >>>>> +     * @param target
> >>>>> +     *            an output stream.
> >>>>> +     * @param follow
> >>>>> +     *            If true will follow changes to the underlying
> >> output stream.
> >>>>> +     *            Use false as the default.
> >>>>> +     * @param name
> >>>>> +     *            The name of the Appender (required).
> >>>>> +     * @param ignore
> >>>>> +     *            If {@code "true"} (default) exceptions encountered
> >> when
> >>>>> +     *            appending events are logged; otherwise they are
> >> propagated to
> >>>>> +     *            the caller. Use true as the default.
> >>>>> +     * @return The ConsoleAppender.
> >>>>> +     */
> >>>>> +    @PluginFactory
> >>>>> +    public static OutputStreamAppender createAppender(Layout<?
> >> extends Serializable> layout, final Filter filter,
> >>>>> +            final OutputStream target, final String name, final
> >> boolean follow, final boolean ignore) {
> >>>>> +        if (name == null) {
> >>>>> +            LOGGER.error("No name provided for
> OutputStreamAppender");
> >>>>> +            return null;
> >>>>> +        }
> >>>>> +        if (layout == null) {
> >>>>> +            layout = PatternLayout.createDefaultLayout();
> >>>>> +        }
> >>>>> +        return new OutputStreamAppender(name, layout, filter,
> >> getManager(target, follow, layout), ignore, null);
> >>>>> +    }
> >>>>> +
> >>>>> +    private static OutputStreamManager getManager(final OutputStream
> >> target, final boolean follow,
> >>>>> +            final Layout<? extends Serializable> layout) {
> >>>>> +        final OutputStream os = target == null ?
> >> NullOutputStream.getInstance() : new CloseShieldOutputStream(target);
> >>>>> +        final OutputStream targetRef = target == null ? os : target;
> >>>>> +        final String managerName = targetRef.getClass().getName() +
> >> "@" + Integer.toHexString(targetRef.hashCode())
> >>>>> +                + '.' + follow;
> >>>>> +        return OutputStreamManager.getManager(managerName, new
> >> FactoryData(os, managerName, layout), factory);
> >>>>> +    }
> >>>>> +
> >>>>> +    @PluginBuilderFactory
> >>>>> +    public static <B extends Builder<B>> B newBuilder() {
> >>>>> +        return new Builder<B>().asBuilder();
> >>>>> +    }
> >>>>> +
> >>>>> +    private OutputStreamAppender(final String name, final Layout<?
> >> extends Serializable> layout, final Filter filter,
> >>>>> +            final OutputStreamManager manager, final boolean
> >> ignoreExceptions, final Property[] properties) {
> >>>>> +        super(name, layout, filter, ignoreExceptions, true,
> >> properties, manager);
> >>>>> +    }
> >>>>> +
> >>>>> +}
> >>>>> diff --git
> >>
> a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/OutputStreamAppenderTest.java
> >>
> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/OutputStreamAppenderTest.java
> >>>>> index 00af014..c1448bf 100644
> >>>>> ---
> >>
> a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/OutputStreamAppenderTest.java
> >>>>> +++
> >>
> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/OutputStreamAppenderTest.java
> >>>>> @@ -1,108 +1,122 @@
> >>>>> -/*
> >>>>> - * Licensed to the Apache Software Foundation (ASF) under one or
> more
> >>>>> - * contributor license agreements. See the NOTICE file distributed
> >> with
> >>>>> - * this work for additional information regarding copyright
> ownership.
> >>>>> - * The ASF licenses this file to You under the Apache license,
> >> Version 2.0
> >>>>> - * (the "License"); you may not use this file except in compliance
> >> with
> >>>>> - * the License. You may obtain a copy of the License at
> >>>>> - *
> >>>>> - *      http://www.apache.org/licenses/LICENSE-2.0
> >>>>> - *
> >>>>> - * Unless required by applicable law or agreed to in writing,
> software
> >>>>> - * distributed under the License is distributed on an "AS IS" BASIS,
> >>>>> - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> >> implied.
> >>>>> - * See the license for the specific language governing permissions
> and
> >>>>> - * limitations under the license.
> >>>>> - */
> >>>>> -package org.apache.logging.log4j.core.appender;
> >>>>> -
> >>>>> -import java.io.BufferedOutputStream;
> >>>>> -import java.io.ByteArrayOutputStream;
> >>>>> -import java.io.OutputStream;
> >>>>> -import java.sql.SQLException;
> >>>>> -
> >>>>> -import org.apache.logging.log4j.LogManager;
> >>>>> -import org.apache.logging.log4j.Logger;
> >>>>> -import org.apache.logging.log4j.core.Appender;
> >>>>> -import org.apache.logging.log4j.core.LoggerContext;
> >>>>> -import org.apache.logging.log4j.core.config.Configuration;
> >>>>> -import org.apache.logging.log4j.core.layout.PatternLayout;
> >>>>> -import org.junit.Assert;
> >>>>> -import org.junit.Rule;
> >>>>> -import org.junit.Test;
> >>>>> -import org.junit.rules.TestName;
> >>>>> -
> >>>>> -/**
> >>>>> - * Tests {@link OutputStreamAppender}.
> >>>>> - */
> >>>>> -public class OutputStreamAppenderTest {
> >>>>> -
> >>>>> -    private static final String TEST_MSG = "FOO ERROR";
> >>>>> -
> >>>>> -    @Rule
> >>>>> -    public TestName testName = new TestName();
> >>>>> -
> >>>>> -    private String getName(final OutputStream out) {
> >>>>> -        return out.getClass().getSimpleName() + "." +
> >> testName.getMethodName();
> >>>>> -    }
> >>>>> -
> >>>>> -    /**
> >>>>> -     * Tests that you can add an output stream appender dynamically.
> >>>>> -     */
> >>>>> -    private void addAppender(final OutputStream outputStream, final
> >> String outputStreamName) {
> >>>>> -        final LoggerContext context =
> LoggerContext.getContext(false);
> >>>>> -        final Configuration config = context.getConfiguration();
> >>>>> -        final PatternLayout layout =
> >> PatternLayout.createDefaultLayout(config);
> >>>>> -        final Appender appender =
> >> OutputStreamAppender.createAppender(layout, null, outputStream,
> >> outputStreamName, false, true);
> >>>>> -        appender.start();
> >>>>> -        config.addAppender(appender);
> >>>>> -        ConfigurationTestUtils.updateLoggers(appender, config);
> >>>>> -    }
> >>>>> -
> >>>>> -    @Test
> >>>>> -    public void testOutputStreamAppenderToBufferedOutputStream()
> >> throws SQLException {
> >>>>> -        final ByteArrayOutputStream out = new
> ByteArrayOutputStream();
> >>>>> -        final OutputStream os = new BufferedOutputStream(out);
> >>>>> -        final String name = getName(out);
> >>>>> -        final Logger logger = LogManager.getLogger(name);
> >>>>> -        addAppender(os, name);
> >>>>> -        logger.error(TEST_MSG);
> >>>>> -        final String actual = out.toString();
> >>>>> -        Assert.assertTrue(actual, actual.contains(TEST_MSG));
> >>>>> -    }
> >>>>> -
> >>>>> -    @Test
> >>>>> -    public void testOutputStreamAppenderToByteArrayOutputStream()
> >> throws SQLException {
> >>>>> -        final OutputStream out = new ByteArrayOutputStream();
> >>>>> -        final String name = getName(out);
> >>>>> -        final Logger logger = LogManager.getLogger(name);
> >>>>> -        addAppender(out, name);
> >>>>> -        logger.error(TEST_MSG);
> >>>>> -        final String actual = out.toString();
> >>>>> -        Assert.assertTrue(actual, actual.contains(TEST_MSG));
> >>>>> -    }
> >>>>> -
> >>>>> -    /**
> >>>>> -     * Validates that the code pattern we use to add an appender on
> >> the fly
> >>>>> -     * works with a basic appender that is not the new OutputStream
> >> appender or
> >>>>> -     * new Writer appender.
> >>>>> -     */
> >>>>> -    @Test
> >>>>> -    public void testUpdatePatternWithFileAppender() {
> >>>>> -        final LoggerContext ctx = (LoggerContext)
> >> LogManager.getContext(false);
> >>>>> -        final Configuration config = ctx.getConfiguration();
> >>>>> -        // @formatter:off
> >>>>> -        final Appender appender = FileAppender.newBuilder()
> >>>>> -        .withFileName("target/" + getClass().getName() + ".log")
> >>>>> -
> .withAppend(false).setName("File").setIgnoreExceptions(false)
> >>>>> -            .withBufferedIo(false)
> >>>>> -            .withBufferSize(4000)
> >>>>> -            .setConfiguration(config)
> >>>>> -            .build();
> >>>>> -        // @formatter:on
> >>>>> -        appender.start();
> >>>>> -        config.addAppender(appender);
> >>>>> -        ConfigurationTestUtils.updateLoggers(appender, config);
> >>>>> -        LogManager.getLogger().error("FOO MSG");
> >>>>> -    }
> >>>>> -}
> >>>>> +/*
> >>>>> + * Licensed to the Apache Software Foundation (ASF) under one or
> more
> >>>>> + * contributor license agreements. See the NOTICE file distributed
> >> with
> >>>>> + * this work for additional information regarding copyright
> ownership.
> >>>>> + * The ASF licenses this file to You under the Apache license,
> >> Version 2.0
> >>>>> + * (the "License"); you may not use this file except in compliance
> >> with
> >>>>> + * the License. You may obtain a copy of the License at
> >>>>> + *
> >>>>> + *      http://www.apache.org/licenses/LICENSE-2.0
> >>>>> + *
> >>>>> + * Unless required by applicable law or agreed to in writing,
> software
> >>>>> + * distributed under the License is distributed on an "AS IS" BASIS,
> >>>>> + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> >> implied.
> >>>>> + * See the license for the specific language governing permissions
> and
> >>>>> + * limitations under the license.
> >>>>> + */
> >>>>> +package org.apache.logging.log4j.core.appender;
> >>>>> +
> >>>>> +import java.io.BufferedOutputStream;
> >>>>> +import java.io.ByteArrayOutputStream;
> >>>>> +import java.io.OutputStream;
> >>>>> +import java.sql.SQLException;
> >>>>> +
> >>>>> +import org.apache.logging.log4j.LogManager;
> >>>>> +import org.apache.logging.log4j.Logger;
> >>>>> +import org.apache.logging.log4j.core.Appender;
> >>>>> +import org.apache.logging.log4j.core.LoggerContext;
> >>>>> +import org.apache.logging.log4j.core.config.Configuration;
> >>>>> +import org.apache.logging.log4j.core.filter.NoMarkerFilter;
> >>>>> +import org.apache.logging.log4j.core.layout.PatternLayout;
> >>>>> +import org.junit.Assert;
> >>>>> +import org.junit.Rule;
> >>>>> +import org.junit.Test;
> >>>>> +import org.junit.rules.TestName;
> >>>>> +
> >>>>> +/**
> >>>>> + * Tests {@link OutputStreamAppender}.
> >>>>> + */
> >>>>> +public class OutputStreamAppenderTest {
> >>>>> +
> >>>>> +    private static final String TEST_MSG = "FOO ERROR";
> >>>>> +
> >>>>> +    @Rule
> >>>>> +    public TestName testName = new TestName();
> >>>>> +
> >>>>> +    private String getName(final OutputStream out) {
> >>>>> +        return out.getClass().getSimpleName() + "." +
> >> testName.getMethodName();
> >>>>> +    }
> >>>>> +
> >>>>> +    /**
> >>>>> +     * Tests that you can add an output stream appender dynamically.
> >>>>> +     */
> >>>>> +    private void addAppender(final OutputStream outputStream, final
> >> String outputStreamName) {
> >>>>> +        final LoggerContext context =
> LoggerContext.getContext(false);
> >>>>> +        final Configuration config = context.getConfiguration();
> >>>>> +        final PatternLayout layout =
> >> PatternLayout.createDefaultLayout(config);
> >>>>> +        final Appender appender =
> >> OutputStreamAppender.createAppender(layout, null, outputStream,
> >> outputStreamName, false, true);
> >>>>> +        appender.start();
> >>>>> +        config.addAppender(appender);
> >>>>> +        ConfigurationTestUtils.updateLoggers(appender, config);
> >>>>> +    }
> >>>>> +
> >>>>> +    @Test
> >>>>> +    public void testBuildFilter() {
> >>>>> +        final NoMarkerFilter filter =
> >> NoMarkerFilter.newBuilder().build();
> >>>>> +        // @formatter:off
> >>>>> +        final OutputStreamAppender.Builder builder =
> >> OutputStreamAppender.newBuilder()
> >>>>> +                .setName("test")
> >>>>> +                .setFilter(filter);
> >>>>> +        // @formatter:on
> >>>>> +        Assert.assertEquals(filter, builder.getFilter());
> >>>>> +        final OutputStreamAppender appender = builder.build();
> >>>>> +        Assert.assertEquals(filter, appender.getFilter());
> >>>>> +    }
> >>>>> +
> >>>>> +    @Test
> >>>>> +    public void testOutputStreamAppenderToBufferedOutputStream()
> >> throws SQLException {
> >>>>> +        final ByteArrayOutputStream out = new
> ByteArrayOutputStream();
> >>>>> +        final OutputStream os = new BufferedOutputStream(out);
> >>>>> +        final String name = getName(out);
> >>>>> +        final Logger logger = LogManager.getLogger(name);
> >>>>> +        addAppender(os, name);
> >>>>> +        logger.error(TEST_MSG);
> >>>>> +        final String actual = out.toString();
> >>>>> +        Assert.assertTrue(actual, actual.contains(TEST_MSG));
> >>>>> +    }
> >>>>> +
> >>>>> +    @Test
> >>>>> +    public void testOutputStreamAppenderToByteArrayOutputStream()
> >> throws SQLException {
> >>>>> +        final OutputStream out = new ByteArrayOutputStream();
> >>>>> +        final String name = getName(out);
> >>>>> +        final Logger logger = LogManager.getLogger(name);
> >>>>> +        addAppender(out, name);
> >>>>> +        logger.error(TEST_MSG);
> >>>>> +        final String actual = out.toString();
> >>>>> +        Assert.assertTrue(actual, actual.contains(TEST_MSG));
> >>>>> +    }
> >>>>> +
> >>>>> +    /**
> >>>>> +     * Validates that the code pattern we use to add an appender on
> >> the fly
> >>>>> +     * works with a basic appender that is not the new OutputStream
> >> appender or
> >>>>> +     * new Writer appender.
> >>>>> +     */
> >>>>> +    @Test
> >>>>> +    public void testUpdatePatternWithFileAppender() {
> >>>>> +        final LoggerContext ctx = (LoggerContext)
> >> LogManager.getContext(false);
> >>>>> +        final Configuration config = ctx.getConfiguration();
> >>>>> +        // @formatter:off
> >>>>> +        final Appender appender = FileAppender.newBuilder()
> >>>>> +        .withFileName("target/" + getClass().getName() + ".log")
> >>>>> +
> .withAppend(false).setName("File").setIgnoreExceptions(false)
> >>>>> +            .withBufferedIo(false)
> >>>>> +            .withBufferSize(4000)
> >>>>> +            .setConfiguration(config)
> >>>>> +            .build();
> >>>>> +        // @formatter:on
> >>>>> +        appender.start();
> >>>>> +        config.addAppender(appender);
> >>>>> +        ConfigurationTestUtils.updateLoggers(appender, config);
> >>>>> +        LogManager.getLogger().error("FOO MSG");
> >>>>> +    }
> >>>>> +}
> >>>>> diff --git a/src/changes/changes.xml b/src/changes/changes.xml
> >>>>> index c3483bd..a9ec160 100644
> >>>>> --- a/src/changes/changes.xml
> >>>>> +++ b/src/changes/changes.xml
> >>>>> @@ -33,6 +33,9 @@
> >>>>>    <action issue="LOG4J2-2639" dev="rgoers" type="add">
> >>>>>      Add builder pattern to Logger interface.
> >>>>>    </action>
> >>>>> +      <action issue="LOG4J2-2673" dev="ggregory" type="fix"
> >> due-to="Yuichi Sugimura, Gary Gregory">
> >>>>> +        OutputStreamAppender.Builder ignores setFilter().
> >>>>> +      </action>
> >>>>>  </release>
> >>>>>  <release version="2.12.1" date="2019-08-06" description="GA Release
> >> 2.12.1">
> >>>>>    <action issue="LOG4J2-1946" dev="rgoers" type="fix" due-to="Igor
> >> Perelyotov">
> >>>>>
> >>>>>
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>>
> >>
> >>
> >>
>
>
>

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