[jboss-dev-forums] [Design of JBoss Build System] - Re: JBossRetro cannot replace final reference to StringBuild

[kfinkels]

sorry for the late response. I was not able to log into the forum for weeks.
here is the byte code for the following source code:

source code:

    		button.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e) {
				StringBuilder builder = new StringBuilder();
				builder.append("Hello");
				label = new JLabel(builder.toString());
				frame.add(label);
			}
		});

bytecode after running with jboss-retro:

public void actionPerformed(java.awt.event.ActionEvent e);
     0  new org.jboss.lang.[img]JBossStringBuilder [/img][23]
     3  dup
     4  invokespecial org.jboss.lang.JBossStringBuilder() [25]
     7  astore_2 [builder]
     8  aload_2 [builder]
     9  ldc <String "Hello"> [26]
    11  invokevirtual org.jboss.lang.JBossStringBuilder.append(java.lang.String) : org.jboss.lang.JBossStringBuilder [28]
    14  pop
    15  aload_0 [this]
    16  getfield demoAOP.HelloMainFrame$1.this$0 : demoAOP.HelloMainFrame [12]
    19  new javax.swing.JLabel [32]
    22  dup
    23  aload_2 [builder]
    24  invokevirtual org.jboss.lang.JBossStringBuilder.toString() : java.lang.String [34]
    27  invokespecial javax.swing.JLabel(java.lang.String) [38]
    30  invokestatic demoAOP.HelloMainFrame.access$0(demoAOP.HelloMainFrame, javax.swing.JLabel) : void [41]
    33  aload_0 [this]
    34  getfield demoAOP.HelloMainFrame$1.this$0 : demoAOP.HelloMainFrame [12]
    37  invokestatic demoAOP.HelloMainFrame.access$1(demoAOP.HelloMainFrame) : javax.swing.JFrame [47]
    40  aload_0 [this]
    41  getfield demoAOP.HelloMainFrame$1.this$0 : demoAOP.HelloMainFrame [12]
    44  invokestatic demoAOP.HelloMainFrame.access$2(demoAOP.HelloMainFrame) : javax.swing.JLabel [51]
    47  invokevirtual javax.swing.JFrame.add(java.awt.Component) : java.awt.Component [55]
    50  pop
    51  return
      Line numbers:
        [pc: 0, line: 31]
        [pc: 8, line: 32]
        [pc: 15, line: 33]
        [pc: 33, line: 34]
        [pc: 51, line: 35]
      Local variable table:
        [pc: 0, pc: 52] local: this index: 0 type: new demoAOP.HelloMainFrame(){}
        [pc: 0, pc: 52] local: e index: 1 type: java.awt.event.ActionEvent
        [pc: 8, pc: 52] local: builder index: 2 type: java.lang.StringBuilder



View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4230982#4230982

Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4230982