For Java-based programs such as Maven, Jenkins, Gradle or Tomcat to run, they need to know that Java's JDK is installed. That's the purpose of the JAVA_HOME environment variable. It tells programs ...

You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java. Many programming languages allow passing ...

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

What’s the difference between versions of Minecraft? That’s not as simple a question to answer as you might think. Most current players will be used to whatever version they’ve started on, whether ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Vivek Yadav, an engineering manager from ...

"username": "extuser", "password": "*****", "column": [ "protRecord_", "dateTime" ], "connection": [ { "table": [ "dbo.ExtWeldMeasureProt3_V" ], "jdbcUrl": [ "jdbc ...

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at com.alibaba.datax.common.util.ListUtil.valueToLowerCase(ListUtil.java:133) ~[datax-common-0.0.1-SNAPSHOT.jar:na] at com.alibaba.datax.common.util.ListUtil ...