Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Coderanch by Ted Newholm, 1 year ago
Component must be non-null
via Oracle Community by 843806, 9 months ago
Component must be non-null
via Coderanch by adeeb alexander, 1 year ago
Component must be non-null
via Stack Overflow by maximus
, 2 years ago
Component must be non-null
via GitHub by winduptoy
, 2 years ago
java.lang.IllegalArgumentException: Component must be non-null at javax.swing.GroupLayout$ComponentSpring.<init>(GroupLayout.java:2953) at javax.swing.GroupLayout$ComponentSpring.<init>(GroupLayout.java:2933) at javax.swing.GroupLayout$Group.addComponent(GroupLayout.java:1524) at javax.swing.GroupLayout$ParallelGroup.addComponent(GroupLayout.java:2484) at javax.swing.GroupLayout$ParallelGroup.addComponent(GroupLayout.java:2454) at javax.swing.GroupLayout$Group.addComponent(GroupLayout.java:1505) at javax.swing.GroupLayout$ParallelGroup.addComponent(GroupLayout.java:2476) at GroupedLayout2x2.<init>(GroupedLayout2x2.java:32) at GroupedLayout2x2.main(GroupedLayout2x2.java:61)