Created attachment 109713 [details]
Reproduction of the bug

About the project structure:
1) The main project references multiple other (which reference themselves) in a hierarchic way. (Main --depends-on--> B --depends-on--> A )
2) All projects are set to compile-on-save.

When does this bug occurs exactly:

1) Remove .netbeans/dev/var recursively (so NB wouldn't "remember" the profect, otherwise it does)
2) Remove in main project: nbproject/private/profiler
3) Run NB
4) Do clean+build on main project
5) Select "Profile" for ProjectMain.java, create NEW(!!!) memory profiler, change some settings away from defaults.

The profiler fails to find dependent classes.

Sadly, I can only reproduce the bug SOMETIMES using reduced number of nearly-empty projects with mentioned configuration. But for my real project with (currently) 14 dependent projects it happens very often and causes a lot of stress (I have to run the Profiler 14 times until it works).

The attachment contains three hierarchically dependent projects.
At the end of this report you find the output of the error (happens only at first and second "Profile...", afterwards the profiler runs).

It seems that the profiler fails to find dependent classes.

= = = = = OUTPUT = = = = =
init:
profile-init:
Deleting: /Misc/BugReproduction/ProjectMain/build/built-jar.properties
deps-jar:
Updating property file: /Misc/BugReproduction/ProjectMain/build/built-jar.properties
ProjectA.init:
ProjectA.deps-jar:
Updating property file: /Misc/BugReproduction/ProjectMain/build/built-jar.properties
ProjectA.init:
ProjectA.deps-clean:
Updating property file: /Misc/BugReproduction/ProjectA/build/built-clean.properties
Deleting directory /Misc/BugReproduction/ProjectA/build
ProjectA.clean:
Created dir: /Misc/BugReproduction/ProjectA/build/classes
Created dir: /Misc/BugReproduction/ProjectA/build/empty
Created dir: /Misc/BugReproduction/ProjectA/build/generated-sources/ap-source-output
Compiling 1 source file to /Misc/BugReproduction/ProjectA/build/classes
ProjectA.compile:
Created dir: /Misc/BugReproduction/ProjectA/dist
Building jar: /Misc/BugReproduction/ProjectA/dist/ProjectA.jar
ProjectA.jar:
ProjectB.init:
ProjectB.deps-jar:
Updating property file: /Misc/BugReproduction/ProjectMain/build/built-jar.properties
ProjectB.init:
ProjectB.deps-clean:
Updating property file: /Misc/BugReproduction/ProjectB/build/built-clean.properties
ProjectA.init:
ProjectA.deps-clean:
Updating property file: /Misc/BugReproduction/ProjectB/build/built-clean.properties
Deleting directory /Misc/BugReproduction/ProjectA/build
ProjectA.clean:
Deleting directory /Misc/BugReproduction/ProjectB/build
ProjectB.clean:
Created dir: /Misc/BugReproduction/ProjectB/build/classes
Created dir: /Misc/BugReproduction/ProjectB/build/empty
Created dir: /Misc/BugReproduction/ProjectB/build/generated-sources/ap-source-output
Compiling 1 source file to /Misc/BugReproduction/ProjectB/build/classes
/Misc/BugReproduction/ProjectB/src/my/SomeClassB.java:5: error: cannot find symbol
		extends SomeClassA {
		        ^
  symbol: class SomeClassA
1 error
/Misc/BugReproduction/ProjectMain/nbproject/build-impl.xml:587: The following error occurred while executing this line:
/Misc/BugReproduction/ProjectMain/nbproject/build-impl.xml:1064: The following error occurred while executing this line:
/Misc/BugReproduction/ProjectB/nbproject/build-impl.xml:611: The following error occurred while executing this line:
/Misc/BugReproduction/ProjectB/nbproject/build-impl.xml:246: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)