java - JTabbedPane minimum size incorrectly calculated -

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i found bug in java , i'd know what's best way workaround it.

when create jtabbedpane left alignment (the tabs on left side) , if add icons in tabs, minimum size of component incorrect.

here simple way reproduce:

import java.awt.borderlayout; import java.awt.dimension;  import javax.swing.imageicon; import javax.swing.jframe; import javax.swing.jlabel; import javax.swing.jpanel; import javax.swing.jsplitpane; import javax.swing.jtabbedpane;  public class minsizecomponent {       // +--------------------------------     // | constructor     // +--------------------------------      // +--------------------------------     // | methods     // +--------------------------------     public void createandshowgui() {         system.out.println("createandshowgui()");         jframe.setdefaultlookandfeeldecorated(true);         jframe frame = new jframe("selection");         frame.setdefaultcloseoperation(jframe.exit_on_close);          // +-----------------------------------------+         // |               gathering                 |         // +-----------------------------------------+          jpanel panel1 = new jpanel();         panel1.setminimumsize(new dimension(100, 99));         panel1.setpreferredsize(new dimension(150, 99));          jpanel panel2 = new jpanel();         panel2.setminimumsize(new dimension(200, 99));         panel2.setpreferredsize(new dimension(250, 99));          jpanel panel3 = new jpanel();         panel3.setminimumsize(new dimension(50, 99));         panel3.setpreferredsize(new dimension(250, 99));          jpanel panel4 = new jpanel();         panel4.setminimumsize(new dimension(150, 99));         panel4.setpreferredsize(new dimension(250, 99));           //with top arrangement there no problem         //jtabbedpane tabbedpane = new jtabbedpane(jtabbedpane.top);          //with left arrangement bug appears         jtabbedpane tabbedpane = new jtabbedpane(jtabbedpane.left);          //without adding icon in tabs, min size of panel correct: 200         /*         tabbedpane.addtab("panel 1", null, panel1, "tip1");         tabbedpane.addtab("panel 2", null, panel2, "tip2");         tabbedpane.addtab("panel 3", null, panel3, "tip3");         tabbedpane.addtab("panel 4", null, panel4, "tip4");         */          //with icons in tabs, min size of panel incorrect: ~285         //should 200 well!         tabbedpane.addtab("panel 1", new imageicon("y:/src/resources/icons/iconuser_32x32.png"), panel1, "tip1");         tabbedpane.addtab("panel 2", new imageicon("y:/src/resources/icons/iconuser_32x32.png"), panel2, "tip2");         tabbedpane.addtab("panel 3", new imageicon("y:/src/resources/icons/iconuser_32x32.png"), panel3, "tip3");         tabbedpane.addtab("panel 4", new imageicon("y:/src/resources/icons/iconuser_32x32.png"), panel4, "tip4");          jpanel rightpanel = new jpanel();         rightpanel.add(new jlabel("label right panel"));          jsplitpane splitpanehorizontal = new jsplitpane(jsplitpane.horizontal_split, tabbedpane, rightpanel);          jpanel core = new jpanel(new borderlayout());         core.add(splitpanehorizontal, borderlayout.center);         core.setpreferredsize(new dimension(500, 500));          //display window.         frame.getcontentpane().add(core);         frame.pack();         frame.setvisible(true);     }      // +-----------------------------     // | main     // +-----------------------------      public static void main(string[] args) {         minsizecomponent toto = new minsizecomponent();         toto.createandshowgui();     } }

just execute, move split pane on left @ maximum. can see size on jtabbedpane content approximately 285 pixels. remove icons in tabs: size becomes correct: 200 pixels (which maximum of minimum size inner components).

anyone knows what's best way workaround it? many thanks,


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