Importing main.java from the following files:

--- file Test.java
public class Test<T> {
    // T stands for "Type"
    private T t;

    public void set(T t) { this.t = t; }
    public T get() { return t; }
}

--- file main.java -------
import Test;
public class main {
    Test<Integer> integerBox;
}
using the following command line on linux:

strace -e trace=file  umbrello

shows that umbrello tries to open the following path

...../Test<Integer>.java 

which indicates that the java import tries to open an invalid java source file. 

Reproducible: Always

Steps to Reproduce:
1. save mentioned test case into related files
2. run umbrello with strace -e trace=file umbrello
4. switch active language to 'java' and import main.java


Actual Results:  
strace shows something like .../Test<Integer>.java 

Expected Results:  
strace should show that umbrello is loading .../Test.java

At least with version 2.9.5 the bug is present, but bug may be older.