processing/processing — pull request #2702 by federicobond (2014-08-01 16:22:26+00:00)
Title: Fix build errors

Compiling in Mavericks with Java 1.7.0_65 fails with the following errors. Replacing diamond operators for standard generic parameters solves the problem.

````
[javac] Compiling 2 source files to /processing/pdex/bin [11/429]
[javac] ----------
[javac] 1. WARNING in /processing/pdex/src/processing/mode/experimental/VariableInspector.java (at line 65)
[javac] public class VariableInspector extends javax.swing.JFrame {
[javac] ^^^^^^^^^^^^^^^^^
[javac] The serializable class VariableInspector does not declare a static final serialVersionUID field of type long
[javac] ----------
[javac] 2. ERROR in /processing/pdex/src/processing/mode/experimental/VariableInspector.java (at line 77)
[javac] protected List expandedNodes = new ArrayList<>(); // list of expanded tree paths. (using list to maintain the order of expansion)
[javac] ^
[javac] Syntax error on token "<", ? expected after this token
[javac] ----------
[javac] 3. WARNING in /processing/pdex/src/processing/mode/experimental/VariableInspector.java (at line 168)
[javac] public Class getColumnClass(int i) {
[javac] ^^^^^
[javac] Class is a raw type. References to generic type Class should be parameterized
[javac] ----------
[javac] 4. WARNING in /processing/pdex/src/processing/mode/experimental/VariableInspector.java (at line 393)
[javac] protected class ValueCellRenderer extends DefaultOutlineCellRenderer {
[javac] ^^^^^^^^^^^^^^^^^
[javac] The serializable class ValueCellRenderer does not declare a static final serialVersionUID field of type long
[javac] ----------
[javac] 5. WARNING in /processing/pdex/src/processing/mode/experimental/VariableInspector.java (at line 437)
[javac] protected class ValueCellEditor extends DefaultCellEditor {
[javac] ^^^^^^^^^^^^^^^
[javac] The serializable class ValueCellEditor does not declare a static final serialVersionUID field of type long
[javac] ----------
[javac] 6. ERROR in /processing/pdex/src/processing/mode/experimental/VariableInspector.java (at line 518)
[javac] List removalList = new ArrayList<>();
[javac] ^
[javac] Syntax error on token "<", ? expected after this token
[javac] ----------
[javac] ----------
[javac] 7. ERROR in /processing/pdex/src/processing/mode/experimental/VariableNode.java (at line 56)
[javac] protected List children = new ArrayList<>();
[javac] ^
[javac] Syntax error on token "<", ? expected after this token
[javac] ----------
[javac] 8. WARNING in /processing/pdex/src/processing/mode/experimental/VariableNode.java (at line 234)
[javac] public Enumeration children() {
[javac] ^^^^^^^^^^^
[javac] Enumeration is a raw type. References to generic type Enumeration should be parameterized
[javac] ----------
[javac] 8 problems (3 errors, 5 warnings)
````