bump version to 0.10.6a0

Author: hx2A

py5/__init__.py

@@ -127,9 +127,16 @@
         print(debug_info, file=sys.stderr)
         raise RuntimeError("py5 is unable to start Java 17 Virtual Machine")
 
-    if JClass("py5.util.CheckHeadless")().test():
+    try:
+        if JClass("py5.util.CheckHeadless")().test():
+            raise RuntimeError(
+                "py5 is unable to run correctly in headless mode. "
+                "Make sure you are running in a graphical environment and that your Java Virtual Machine is not a Headless JVM."
+            )
+    except:
         raise RuntimeError(
-            "py5 is unable to run correctly in headless mode. Make sure you are running in a graphical environment and that your Java Virtual Machine is not a Headless JVM."
+            "Unable to instantiate Java class py5.util.CheckHeadless. "
+            "If you are using PyInstaller right now, please check that all of py5's jar files are included in your package."
         )
 
 import py5_tools.colors.css4 as css4_colors  # noqa

py5/jars/core.jar

@@ -664,7 +664,7 @@
     (('Py5Tools', 'live_coding_count'), ['() -> int']),
     (('Py5Tools', 'live_coding_activate'), ["(*, always_rerun_setup: bool = True, always_on_top: bool = True, activate_keyboard_shortcuts: bool = False, archive_dir: str = 'archive') -> None"]),
     (('Py5Tools', 'processing_library_storage_dir'), ['() -> Path']),
-    (('Py5Tools', 'processing_installed_libraries'), ['() -> list[str]']),
+    (('Py5Tools', 'processing_installed_libraries'), ['() -> set[str]']),
     (('Py5Tools', 'processing_check_library'), ['(library_name: str) -> bool']),
     (('Py5Tools', 'processing_download_library'), ['(library_name: str) -> dict']),
     (('Py5Tools', 'processing_remove_library'), ['(library_name: str) -> None']),])

py5/jars/dxf/dxf.jar

@@ -21,8 +21,8 @@
 import platform
 from pathlib import Path
 
-VERSION = "0.10.5a0"
-PROCESSING_BUILD_NUMBER = 1301
+VERSION = "0.10.6.a0"
+PROCESSING_BUILD_NUMBER = 1304
 
 if not (PY5_HOME := os.environ.get("PY5_HOME")):
     if platform.system() == "Windows":

py5/jars/pdf/pdf.jar

@@ -22,7 +22,10 @@
 
 import py5_tools
 
-if not py5_tools.is_jvm_running() and py5_tools.processing.check_library("JavaFX"):
+if (
+    not py5_tools.is_jvm_running()
+    and "JavaFX" in py5_tools.processing.installed_libraries()
+):
     try:
         library_dir = None