system-properties

Is it possible to add new values to Java System Properties. If there is any how can introduce new keys with there corresponding values in Java System Properties. Either System.setProperty or use the -Dname=value flag when you start the JVM assylias Yes: public static void main(String args[]) { String key = "a new property"; System.setProperty(key, "a property with a value"); System.out.println(System.getProperty(key)); } System.setProperties(properties object); This will set the system properties. If you want to set a specified property, then use System.setProperty(key, value);//Both key and

We use the command line to pass on system properties to the Java virtual machine when running our Hudson builds on a Linux box. It used to work quite well in 2.0.9 by since we upgraded to 2.1.0 it has stopped working altogether. The system properties just never make it to the Java virtual machine. I have created a small test project and indeed it does not work at all. This should work just fine with Maven 2.0.9: mvn2.0.9 -Dsystem.test.property=test test But this will fail: mvn2.1 -Dsystem.test.property=test test The Java code simply does this assertTrue( System.getProperty("system.test

I have a single application.yml configuration file for my Spring Boot app that defines two profiles (as described in the documentation ). When the production profile is enabled, I would like to set the http.maxConnections system property to a custom value, e.g. spring: profiles: active: dev --- spring: profiles: dev --- spring: profiles: production http: maxConnections: 15 But this doesn't actually set the system level property; it appears to just create an application-level property. I've verified this through both http://locahost:8080/env and a JMX Console when comparing launching by java

Is there an easier way to specify multiple System Properties on the command line to a Java program rather than having multiple -D statements? Trying to avoid this: java -jar -DNAME="myName" -DVERSION="1.0" -DLOCATION="home" program.jar I thought I had seen an example of someone using one -D and some quoted string after that, but I can't find the example again. Answer is NO. You might have seen an example where somebody would have set something like : -DArguments=a=1,b=2,c=3,d=4,e=cow Then the application would parse value of Arguments property string to get individual values. In your main you

I've been inspired by another question: Best Practice for Using Java System Properties I'm currently looking for a complete list of Java system properties and possible values. I'm working on a simple class to simplify use of them (If you're interested, get the source and background info (my blog) ). With this class, I try to provide the following: simple and consistent access to Java system properties (no String constants) full documentation of available properties and their possible values – within my IDE (i.e. auto-completion, inline Javadoc) fix inconsistencies in returned values and/or

I am not clear about this. When I run a java App or run an Applet in applet viewer, (in the IDE environment), System.getProperty("java.class.path") gives me the same as System.getenv("CLASSPATH") which is the CLASSPATH defined in my env variable. But when I deploy my applet to webserver and access it from the same computer as a client, I get different results for the two. ( System.getProperty("java.class.path") only points to JRE home and System.getenv("CLASSPATH") returns null). And here is some other things that make me wonder: For the applet part, the env var JAVA_HOME, I get the same