Download and install jdk-8u181.exe for Netbeans 8.2 to install properly. Its a requirement under the Netbeans 8.2 installation instructions Netbeans with JDK https://www.oracle.com/technetwork/java/javase/downloads/jdk-netbeans-jsp-3413139-esa.html
In IntelliJ IDEA: In File Menu → Project Structure → Project, change Project Language Level to 8.0 – Lambdas, type annotations etc. For Android 3.0+ Go File → Project Structure → Module → app and In Properties Tab set Source Compatibility and Target Compatibility to 1.8 (Java 8) Screenshot:
It’s a new feature in Java 8 which allows an interface to provide an implementation. Described in Java 8 JLS-13.5.6. Interface Method Declarations which reads (in part) Adding a default method, or changing a method from abstract to default, does not break compatibility with pre-existing binaries, but may cause an IncompatibleClassChangeError if a pre-existing binary attempts to invoke the method. This error occurs if the qualifying … Read more
Edited the answer based on Bastien Jansen comment. Seems that there is another project setting that affects the compiler level. A subtle indication of this problem is when your compiler starts complaining of the source and target java version being different from the one you specified while you are compiling the code To get rid … Read more
As I commented on the previous answer the reasons for setting a limit on those memory pools is different. If your users previously increased the MaxPermSize above the default that probably was either to avoid Full GCs / concurrent mode failures with CMS or because their applications genuinely needed a lot of perm gen space. … Read more
Because that’s a method reference, the usage is a bit different: The argument that the consumer takes (s) will be still passed to the println method. here is Oracle’s tutorial on this.
From the Eclipse Point of view the error is totally correct because JavaFX is coming from the extension classpath and is not available on ALL Java8 VMs (e.g. ibm!). As outlined you can suppress those warnings by add access-rules or IMHO the best solution is to install e(fx)clipse which does this automatically for you and … Read more
If you want to convert an Instant to a Date: And then you can use SimpleDateFormat for the formatting part of your question:
Yes you can, In your pom.xml, add the tomcat plugin. (You can use this for both Tomcat 7 and 8): pom.xml tomcat-users.xml settings.xml (maven > conf) *** deploy/re-deploy** mvn tomcat7:deploy OR mvn tomcat7:redeploy Tried this on (Both Ubuntu and Windows 8/10): Jdk 7 & Tomcat 7 Jdk 7 & Tomcat 8 Jdk 8 & Tomcat 7 Jdk 8 & … Read more
Go to File > Settings > Build, Execution, Deployment > Compiler > Java Compiler If on a Mac, it’s under Intellij IDEA > Preferences… > Build, Execution, Deployment > Java Compiler Change Target bytecode version to 1.8 of the module that you are working for. If you are using Maven Add the compiler plugin to pom.xml under the top-level project node: (Hoisted from the comments.) Note: … Read more