When you launch jdeveloper.exe (Windows) or jdev (Linux/Mac), the following happens:
: If the JVM cannot allocate enough memory, it will fail to start. Try decreasing the maximum heap size in jdev.conf by changing -Xmx to a lower value (e.g., -Xmx512m ). jdeveloper unable to launch the java virtual machine
Before diving into fixes, it helps to understand the three primary reasons JDeveloper fails to launch a JVM: When you launch jdeveloper
Post your jdev.conf contents and the output of java -version on Oracle Community or Stack Overflow — and link back to this guide. -Xmx512m ). Before diving into fixes
To troubleshoot the issue, follow these steps:
If jdev.conf is ignored or absent, JDeveloper reads from product.conf or boot.properties .