[hotfix] [tests] Clean up some warnings

flink-streaming-java/src/test/java/org/apache/flink/streaming/runtime/operators/StreamOperatorChainingTest.java

@@ -142,8 +142,6 @@ public void invoke(String value) throws Exception {
 
 		StreamConfig streamConfig = new StreamConfig(configuration);
 
-		System.out.println(streamConfig);
-
 		StreamMap<Integer, Integer> headOperator =
 				streamConfig.getStreamOperator(Thread.currentThread().getContextClassLoader());
 

flink-test-utils-parent/flink-test-utils-junit/src/main/java/org/apache/flink/core/testutils/OneShotLatch.java

@@ -45,7 +45,7 @@ public void trigger() {
 	}
 
 	/**
-	 * Waits until {@link #trigger())} is called. Once {@code #trigger()} has been called this
+	 * Waits until {@link OneShotLatch#trigger())} is called. Once {@code trigger()} has been called this
 	 * call will always return immediately.
 	 * 
 	 * @throws InterruptedException Thrown if the thread is interrupted while waiting.
@@ -59,7 +59,7 @@ public void await() throws InterruptedException {
 	}
 
 	/**
-	 * Waits until {@link #trigger())} is called. Once {@code #trigger()} has been called this
+	 * Waits until {@link OneShotLatch#trigger())} is called. Once {@code #trigger()} has been called this
 	 * call will always return immediately.
 	 * 
 	 * <p>If the latch is not triggered within the given timeout, a {@code TimeoutException}

flink-test-utils-parent/flink-test-utils-junit/src/test/resources/log4j-test.properties

@@ -0,0 +1,27 @@
+################################################################################
+#  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.
+################################################################################
+
+# Set root logger level to OFF to not flood build logs
+# set manually to INFO for debugging purposes
+log4j.rootLogger=OFF, testlogger
+
+# A1 is set to be a ConsoleAppender.
+log4j.appender.testlogger=org.apache.log4j.ConsoleAppender
+log4j.appender.testlogger.target = System.err
+log4j.appender.testlogger.layout=org.apache.log4j.PatternLayout
+log4j.appender.testlogger.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n

flink-test-utils-parent/flink-test-utils-junit/src/test/resources/logback-test.xml

@@ -0,0 +1,34 @@
+<!--
+  ~ 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.
+  -->
+
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{60} %X{sourceThread} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="WARN">
+        <appender-ref ref="STDOUT"/>
+    </root>
+
+    <logger name="org.apache.flink.api.common.io.DelimitedInputFormat" level="OFF"/>
+    <logger name="org.apache.flink.api.common.io.FileInputFormat" level="OFF"/>
+    <logger name="org.apache.flink.configuration.GlobalConfiguration" level="OFF"/>
+    <logger name="org.apache.flink.configuration.Configuration" level="OFF"/>
+</configuration>