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Okay, I am working on a simple logging app. After working on it for about a day I realized something was wrong, it seemed like anything I changed, say in my GUI, that it would some how not be reflected sy in the JAR rebuild. To check that I wasn't just crazy I preformed a simple test, I merely changed the title of my frame. I also checked the rest of my source code to make sure there where no other places I set the frame's title. The title remained the same, and confimed my suspiscions. I not only ran the project through Netbeans, but i also ran the jar file on a seperate JVM outside of Netbeans, still same effect. I have the jar file, with all of the source packaged includeing the class files (all packaged by Netbeans). I tried decompiling the GUI's class file with JODE but wasn't able to.
Created attachment 27955 [details] The Netbeans built JAR File
Created attachment 27956 [details] Showing no other setTitle in my GUI class
Created attachment 27957 [details] Setting the fra,es new title
Created attachment 27958 [details] Rebuiling the JAR file
Created attachment 27959 [details] Same results after Rebuilding the JAR
Reassigning to "form" for evaluation.
I am sorry I am not able to reproduce this issue. Could you, please, provide more details about your project - I am surprised that your JAR file contains also the source files (Java application project doesn't do that by default). How do you execute the JAR file? The built LogI.class seems to contain the metioned setTitle("TEST TEST THIS SHOULD NOT SHOW"); statement, but I am not able to execute it because it fails with the following exception Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at java.util.Hashtable.put(Unknown Source) at javax.swing.UIDefaults.put(Unknown Source) at javax.swing.JTable.setDefaultRenderer(Unknown Source) at org.logi.LogI.initComponents(LogI.java:133) at org.logi.LogI.<init>(LogI.java:27) at org.logi.LogI$16.run(LogI.java:412) ... E.g. NPE from an incorrect line jTable1.setDefaultRenderer(null, new org.logi.DefaultTableCellRenderer()); It seems that you tried to execute a different JAR than the one attached.
Problem found. A third party Module Plugin would automatically "install" (move jar files to the java ext directories) at project build. So when executing the jar file the jvm would load an older version of the classes from the ext dirs. Since starting the project I had since turned off the 3rd party module plugin, therefore an old set of classes where being loaded not the new rebuilt ones.
*** Issue 70557 has been marked as a duplicate of this issue. ***