When trying to do some multi-threaded code, tried to use the synchronized(var) { } syntax
to protect use of var. Processing fails to generate the correct java code for this. For
example, below is a sample bit of Processing code:


java.util.List alist = Collections.synchronizedList(new ArrayList());

void setup() {
size(400, 200);
alist.add("hello");
}

void draw() {
rect(width/4, height/4, width/2, height/2);
synchronized(alist) {
alist.get(0);
}
}

The following errors are reported by Processing:

/tmp/build/Temporary_6995_7622.java:11:20:13:14: Syntax Error: "}" inserted to complete
MethodBody

/tmp/build/Temporary_6995_7622.java:1:268:13:14: Syntax Error: "}" inserted to complete
ClassBody

/tmp/build/Temporary_6995_7622.java:13:3:13:14: Syntax Error: "Type
VariableDeclarators" inserted to complete LocalVariableDeclaration

/tmp/build/Temporary_6995_7622.java:13:3:13:14: Syntax Error: ";" inserted to complete
LocalVariableDeclarationStatement


Now, below is the corresponding java code:

[dyn5:~] vemuri% cat /tmp/build/Temporary_6995_7622.java
import processing.core.*; import java.applet.*; import java.awt.*; import
java.awt.image.*; import java.awt.event.*; import java.io.*; import java.net.*; import
java.text.*; import java.util.*; import java.util.zip.*; public class Temporary_6995_7622
extends PApplet {

java.util.List alist = Collections.synchronizedList(new ArrayList());

public void setup() {
size(400, 200);
alist.add("hello");
}


public void draw() {
rect(width/4, height/4, width/2, height/2);
synchronized(}


There is no newline after the final '}'. If I comment out the "synchronized" line and the
corresponding close bracket, the program compiles and runs successfully.

Thanks.

verified.. preprocessor seems to be chewing up the code for some odd reason. perhaps the
grammar doesn't understand synchronized blocks for some odd reason?

*** Bug 551 has been marked as a duplicate of this bug. ***

I believe I saw that someone elsewhere already mentioned this (or alluded
to it): as a workaround, do all synchronized work in other tabs, .java
files. e.g. when I saw the preprocessor dirtnapping on synchronized, I
pushed my synchronized block in the .pde into a method on my subclass of
Thread. I'm using version 0135.

Fixed in SVN for revision 0137.